Raspberry pi i2c not working. i2c I2C adapter just in case: when I was debugging stable .

Raspberry pi i2c not working Detection on PI4 : [PI4][/PI4] Detection wih PI5: pi@raspberrypi:~ $ i2cdetect -l i2c-11 i2c 107d508200. Wed Mar 25, 2015 11:02 am . 4 posts • Page 1 of 1. Something about a LCD board chip needing high to be at least 70% of VIn. Tue Jan 02, 2024 9:47 pm . I'll also send my C This is an unofficial raspberry pi pico community and is not affiliated with or sponsored by the Raspberry Pi Foundation. The most common cause for a Raspberry Pi not booting is using an incompatible operating system. Interfacing (DSI, CSI, I2C, etc. perhaps you are driving the display wrong! if there is some other thing you can control, like turning backlight on/off, does that work? How does the I2C driver work, or rather what chip is used? a simple I/O expander, or a microcontroller (PIC?). I have set up i2c and everything so thats not an issue. 1. At some point it i2c-tools became unable to recognize any i2c device unless I hook that device's data and clock line directly to the RPI3. 1 We use some essential cookies to make our website work. Tue Oct 13, 2020 5:13 pm . I2C not working in Raspbian. Trevor. Wed Jul 01, 2020 2:47 am . by the PI4, but with the PI5, detection does not work for some of them. I'm not entirely sure what the issue is still but I think it might be dead hardware at this point, I used an alternate setup and now it seems to be working but now the original hardware also seems to be working so I'm not sure. I have set the I2C on the Rpi using this tutorial below: Same problem here, on a RPi 4. How to use I2C to connect an LCD to the Raspberry Pi. I then followed this guide which shows how to enable the i2c display on the Raspberry Pi. Please help me. Hi there, i want to get an interrupt from i2c whenever there's an abort, so I set the mask to ~I2C_IC_INTR_MASK_M_TX_ABRT_BITS, add a handler and finally enable I2C0_IRQ. Hi everyone I'm trying to set up this (DSI, CSI, I2C, etc. A clear photo showing the connections may help. io 3. Using the Raspberry Pi. When I try to run the command sudo i2cdetect -y 1 it should displays the information about the i2c devices connected. hpp and HMC6343. Raspberry Pi Press. SeanK. I have correctly connected the LCD to the Raspberry, but it's not detected: if I run i2cdetect -y 1 I2C not working on rpi 3B+ Thu Jan 25, 2024 10:34 am . 0. raulp Posts: 8 Joined: Tue Dec 08, 2015 8:19 am. 30-v8+ #1536 SMP PREEMPT Mon Mar 28 13:53:14 BST 2022 aarch64 GNU/Linux pi@raspberrypi:~ $ cat /proc/device-tree/model Raspberry Pi 4 Model B Rev 1. robot-electronics. 17 posts • Page 1 of 1. VIn was 5V so at least 3. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK I have the raspberry pi 3 model B and would like to communicate over i2c. 3V. Hi, Rasp pi 3b, latest update. I've already installed the official OS (updated), and every time I turn on the Pi the display doesn't work. Could you use the normal Arduino core for the Raspberry Pi Pico and not use Wire1 and not change the I2C pins, and not change the I2C clock, but everything as normal as possible with the normal pins for SDA and SCL. Open comment sort options. I have two MPU6050's connected, they should have the addresses 0x68 and 0x69 (one has ADO connected to ground), but neither shows up. I need this to work because I just bought several 4gb RAM Pi 4s You need to find the datasheet for the underlying sensor. ~ $ ls /dev/i2* /dev/i2c-1 pi@raspberrypi:~ $ lsmod | grep i2c i2c_bcm2835 16384 0 i2c_dev 16384 0 pi@raspberrypi:~ $ raspi-gpio get |more BANK0 (GPIO 0 to 27): GPIO 0 Raspberry Pi Engineer & Forum Moderator Posts: 17342 Joined: Wed Dec 04, 2013 11:27 am Location: ZZ9 Plural Z Alpha, aka just outside Cambridge. What I tried is: 1. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 I had enabled I2C through the GUI ==>Preferences==>Raspberry Pi Configuration==>Interfaces==>I2C enable==>ok Then rebooted and could not get I2C devices recognized. The issue I'm having is that one of my pi's will not communicate with a known working i2c circuit. com Posts: 4 Joined: Wed Apr 27, 2016 6:19 pm. I have a VL53L0X ToF laser distance sensor attached to rpi. i2c not detected. #arm_freq=800 # Uncomment some or all of these to enable i2c-devand i2c-bcm2708 have been added to /etc/modules. Interface for interaction between the board and raspberry is I2C. I2C device (PCA9685) suddenly not working - Debug options? Mon Mar 30, 2020 1:00 pm . When again PICO was not working with I2C. I use the Using the Raspberry Pi. We use i2c port 1 the most often. I2C not working on GPIO 24/25. Thu Jul 05, 2012 7:26 am . What pull up resistors are attached? Using the Raspberry Pi. Is there a difference between 3b and 4b pi i2c setup? In raspi-config I enable I2C, and I see in /boot/config. Some I2C modules allow you to configure the I2C address with on-board switches or solder gaps. Top. txt: dtparam=i2c_arm=on dtoverlay=i2c-rtc,ds3231 dtoverlay=w1-gpio,gpiopin=22 # unrelated to this topic Contents of /etc/modules: i2c-dev Output of I am trying to interface MPU-6050 with the Raspberry Pi, Since it require I 2 C connections so I have connected using the following pins: 3. 30 posts 1; 2; gregwal Posts: 1 Joined: Sun Feb 21, 2021 10:13 pm. Tried a different type of screen (0,96 inch SSD1306 OLED) It seems that systemd can read the RTC, because systemd-timedated only does read operation on /dev/rtc, which works fine. It appears you are on the edge. I have I2CDetect not working. I'm guessing your config. 1 when it's connected to those pins. I made sure to toggle the i2c on in the preferences window, but it still doesn't work. realmasterwizard Posts: 1 Joined: Tue Jan 05, 2021 6:45 pm. I2C not detected. txt just says "dtparam=i2c=on", because if you'd written "dtparam=i2c_arm=on" you might have wondered why it says "i2c_arm" and not "i2c". Sat Oct 25, 2014 8:30 pm . Tue Jan 05, 2021 10:26 pm . In that case the device is not connected to the I2C bus. This is because they employ a method called clock stretching that is not supported on current Raspberry Pi hardware or software. I have followed all the steps to set up I2C. I2C not Posts: 10 Joined: Sat Nov 25, 2023 1:20 pm. Do i have to update/install any library on Raspberry Pi 2 ? Is spi module spi_bcm2835 not working ? I2C Read/Write Not Working. I have set up the i2c on two raspis exactly the same setup. Output of uname -a for software/kernel info: Linux raspberrypi2 4. Modified 2 years, 4 months ago. So I2C is working. 16 posts • Page 1 of 1. i2c dev not Working. (Adding that line created the /dev/i2c-0 file, so I didn't need to create it) However it is not correctly being detected by the Pi. I have been messing with this on and off for 2 weeks. The Pi project was working for a few weeks then suddenly stopped; I had not touched/modified the wiring, so this is very strange. txt. i2c write/ i2cset not working (data mismatch) Mon Apr 18, 2016 4:45 am . 3V device, your device 5V. Just another techie on the net Trying to use the Raspberry Pi Pico W and some i2c devices with micropython but running into issues. I made a few changes and found that now neither of them work. Accept optional cookies Reject optional cookies So I assume that ups pi firmware is not very well working together with kernel 5. But does register access for this chip work ? - Do other I2C devices work? Not one of Re: I2C bus for the raspberry pi is not detected Mon Oct 24, 2016 4:50 pm If you have connected the device properly then either the device or the Raspberry Pi is broken. You have not connected the device to the I2C bus. 3 not working. – Steve Robillard. I've got a PICO and trying to get the TCA9548A i2c mux to work with it - in micro-python. Mon Mar 27, 2023 12:42 pm . htm) interface from my desktop PC. I am sending block data via i2c to RPi3. We use optional cookies, as detailed in our cookie policy, to remember your settings and understand how you use our website. This time I waited 2 days and I've come back to this issue today. My problem was that I did not getting any interrupt after the i2c initialization. 3 posts • Page 1 of 1. Share Sort by: Best. Edit : I tried to change the I2C bus frequency down to 100kHz instead of 400kHz. I have found that several devices do not work at this speed. Asking for help, clarification, or responding to other answers. Hi I installed the argon one fan scripts Raspberry Pi Pico. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 Thanks for contributing an answer to Raspberry Pi Stack Exchange! Please be sure to answer the question. 45-v7+. Raspberry Pi; Arduino; (code not fully tested, driver changes work, use Code: Select all pi@raspberrypi:~ $ uname -a Linux raspberrypi 5. Hi, I have been using the I2C function for the past week on the Raspberry Pi 2 but this morning it started not to work. Any help would be greatly appreciated. I tried using another Raspberry Pi, different wires, even another i2c device but it definitely can't We use some essential cookies to make our website work. If I revert to the old version then every thing still works fine I've checked that i2c module is loaded, the devices exist, Raspberry Pi Store. i2c I2C adapter just in case: when I was debugging stable As I said, plugged it in, worked. I am a newbie with SDR's and have been working with Pi's for a few years, but recently decided to purchase an SDR and create an rtl-sdr tcp server on my RPi 3. I2C LCD Not working at all. It has a I2C-breakout and i2cdetect gives me 0x3f as address. Hi all, yesterday i've tried to attach a DS1307 RTC to I2C of my RPi. I connected the GND on the screen to pin 6 on the raspberry pi, VCC to pin 4, SDA to pin 3, and SCL to pin 5. I2c settings 3b vs 4b (4b not working) 3 posts • Page 1 of 1. Hi all, What connections have you made between the Pi and the I2C devices? lordbarba Posts: 6 Joined: Sat Oct 25, 2014 8:22 pm. RPi 2B + 4. I just did this from the terminal: sudo raspi-config and it enabled I2C from the menu and it now I2C does not specify a voltage. Jerwinprabu, I have the exact same issue Interfacing (DSI, CSI, I2C, etc. I then connected a 2. com wrote: The I2C driver accepts an option - baudrate - which defines the default communication speed for the i2c bus. I have an arduino (Atmega328) as slave connected to a pi zero w (running Hello everyone, I am using raspberry pi 3 B+ and try to connect I2C device, sometimes ago (like a month or two) it worked nicely, and then when I try it again now it do not work. Commented Mar 21, 2015 at 21:09. i2c-bcm2708has been removed from the blacklist. However, nothing shows up for me. These interfaces aren't enabled by default, and need some extra configuration before you can use them. Tue Oct 03, 2023 5:50 pm . Opening the file /boot/config. I2c settings 3b vs 4b (4b not working) Wed Jan 27, 2021 8:34 am . it has a fresh install of raspbian (everything up to date) and I followed a tutorial Raspberry Pi Pico I2C pins not working (MicroPython) Ask Question Asked 3 years, 7 months ago. Connect ALL grounds (GND) take a GND wire from Raspberry Pi to the breadboard and ensure ALL GND (0v) are connected together Once you have done that test with PCF8574 ONLY There are some issues with I2C LCD displays not working with Pis either clock stretching or series impedance problems. Beginners. I use a proprietary hat with raspberry. Level shifter between raspberry and arduino for i2c does not work. Pigpio i2c library not working properly. Sun Jan 16, 2022 12:12 am . I had this exact problem, I had already tried both solutions but finally got it working with your code! I was not registered here on this forum, I2C, etc. I2C LCD not Posts: 11 Joined: Tue Feb 03, 2015 7:05 pm. Today I switched to PI 5 after PI 3B+. When I first tried the circuit it worked fine using a breadboard. I double triple checked connections and everything looks fine. I2C LCD display 20x4 not working. Return to “Interfacing Since I had not had much time to use my Pi in the last six or seven weeks when I came back to it at the weekend I decided it would be a good idea to update the OS. There are actually to i2c ports on a raspberry pi, i2c port 1 and i2c port 0. Removing the system from the enclosure fixes this issue. The default setting is 100000. RPi3 i2c not working. 96 OLED Display to work with a raspberry pi 5 using the following guide, after following guide everything looks fine, Raspberry is connected with an arduino pro mini and a mcp23008 by I2C. I2C PCA9685. I had 2 devices working using I2C, a RTC8563 and an AHT20 humidity sensor. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Raspberry Pi Pico. - I2C scanning does not work. Store information; I am using a raspberry pi 3B+, i2c-tools is installed, trying also from python using smbus and of course the I2C is activated in the raspberry config. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi I am using raspberry pi 3 B model. i2c can read byte but not block (smbus read_i2c_block_data not working) Mon Jan 22, 2018 1:11 pm . I have tried below things : I have a Pi 5 with the stock software, and i want to connect a AS5600 magnetic encoder to it via I2C. It takes data from arduino once at 10 seconds and it works great; i have no problems here. adm746 Posts: 4 Joined: Wed Jan 27, 2021 8:19 am. Thanks for contributing an answer to Raspberry Pi Stack Exchange! Please be sure to answer the question. MicroPython. Old. Wed Nov 20, 2024 6:21 pm . 3V, it was found to be around 150kohm. Open terminal and run command sudo su, then run sudo i2cdetect -y 1. It came as a surprise to me that a previously working program for the PI 3 does not work on the PI 5 now. (DSI, CSI, I2C, etc. No, I'm using I2C bus 0, it's not attached to 1. The code for the STM32 is the following. sudo I have an 20x4 LCD and an i2c /IIC interface. I am using "raspberrypi 4. i2cdetect -y 1 used to detect my i2c devices but doesn't anymore. Even though it shows enabled. I want to do a simple test connecting STM32 with Raspberry Pi 4 where I'm sending data from the STM32 to the RBP. Raspberry as an I2C SLAVE. i2c commands working with and without sudo in rpi. hwclock -r before reading time from /dev/rtc first does synchronize_to_clock_tick_rtc where the process waits for the interrupt, which never comes. Raspberry Pi Pico. 20 posts • Page 1 of 1. i2c can read byte but not block (smbus read_i2c_block_data not working) 4 posts Joined: Tue Dec 03, 2013 9:58 pm. I've often fed 5V into my Pi, both by mistake and on purpose. Joined: Thu Dec 22, 2016 7:12 pm. png. Re: Raspberry Pi B+ I2C not working Mon May 30, 2016 6:18 am Pi Destroyer wrote: FYI, this problem still observed even though there is no device connected to the Raspberry Pi. Just because it works witht the arduino does not mean it will work with the Pi. it worked for me, it may not work for you. Wed Jan 11, 2017 7:54 pm . 1 post • Page 1 of 1. The screenshot shows that no i2c nodes exist in /dev. Fri Oct 23, 2015 7:37 pm . New comments cannot be posted. RTC DS1307 I2C not detected. Re: Waveshare 1200x800 DSI screen not working on RPi5. pi@raspberrypi:~ $ i2cset -f -y -r 1 0x54 0x00 0x01 I have recently got a raspberry pi model 3b. Recommended Reading. The 110° works fine. I expect the currents involved are miniscule and the excess voltage milliamps are shunted away by the GPIO protection diodes. I am trying to connect the VL53L0X ToF Module to measure some distances, but whatever I try I When I try to run the command sudo i2cdetect -y 1 it should displays the information about the i2c devices connected. Hi, i've just started experimenting with using an i2c multiplexer, i've got it working, but i'm a bit of a python noob so i'm lost on a couple things and i'm wondering if anybody could help point me in the right direction. At the beginning everything worked fine, i2c detected the rtc showing 68 and it saved the time when i turned off the RPi. It can be using the wrong architecture, Raspbian Stretch and older versions do not work on Pi 4. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 Raspberry Pi Engineer & Forum Moderator Posts: 17306 Joined: Wed Dec 04, 2013 11:27 am I want to know how important I2C is for working initialisation. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 There was a problem with an LCD unit being powered from 5V (possibly not an I2C one). I don't know which instructions you followed, but you did way to much there. 1. Changing I receive a blank i2c address map. Wed Oct 28, 2020 3:30 pm . Thu Mar 24, 2022 8:15 pm . When sending regular block data, it is read properly. The 3V3 logic one signal from the Pi wasn't high enough to be counted high by the 5V logic on the LCD board. WoutD Posts: 21 Joined: Tue Feb 17, 2015 2:06 pm [solved] IR Receiver not working. The problem is with with mcp23008, when i start the web app it works perfect, it's sending signals to my relay board and i can open/close circuits but after a while no longer works. Getting TCA9548A i2c mux to work with PICO. I'm a newbee in Raspberry and I have a problem with my LCD-display (20 char, 4 lines). i2c I2C adapter just in case: when I was debugging stable Nothing seems to work aside from the Pi detecting the backpack (I2C). ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator i2c interrupt mask not working? Mon May 23, 2022 1:14 pm . I am trying to use the two i2c buses but the default is not working. RV-3028-C7 RTC on I2C6 backup-switchover-mode=1 not working. This is the obvious answer, but I have checked and re-checked. Fri May 04, 2018 7:13 am . Re: Pi Pico with BMP280, BMP 180. mattray114 Posts: 7 Joined: Fri May 24, 2024 7:07 pm. On those boards the INA219 included are perfectly detected. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Hello, I was offered a Pi 5 (8Gb) with an official 7 inch display. High/low are defined as 70%/30% of the pulls high. If connected to the raspberry pi zero w, it looks the following: And from the back it looks like this: Interestingly, the power led of the icc/i2c module is not on. From In that case the device is not connected to the I2C bus. Accept optional cookies Reject optional cookies Using the Raspberry Pi. 700 MHz is the default. The RPIi is a 3. Raspberry Pico I2C issues. Learn how to scroll, position, and clear text, print the date, time, IP address, and sensor data. Are you sure the device is adapted to raspberry pi spec ? sometime you need to remove the 1) I do not know what the I2C address should be, as I have never managed to get it to run, however when I disconnect the screen all of these addresses shown on i2c-detect disappear. Add a Comment. ) Raspberry Pi 400 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Hi everyone, i have a problem regarding the I2C Bus on my Rspberry Pi 3B. Using I2C with MMC34160PJ magnetometer. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - SDR guys and Rpi Wizards I need your help!!!!! I I have been having some very frustrating issues involving this same ordeal. 8 - 32bit. I tried for the first time the I2C connection between raspberry and arduino, in this case raspberry pi4b and arduino nano (a copy) Following online Using the Raspberry Pi. Hello, everyone. 13 posts • Page 1 of 1. Hello, I am having a problem connecting a PCA9685 via I2C. For a project I'm a doing I need to connect it to an Arduino (mega) via I2C. Hello, I'm developing in a PICO W trying to use a SPI Display and I2C sensor. I have a raspberry pi 3 running raspberry pi os Buster. New. I have a Raspberry with Raspbian Jessie, and a LCD 16x2 display with a built-on I2C adapter. Fri Jun 16, 2023 9:42 am . Raspberry Pi Engineer & Forum Moderator Posts: 6365 Joined: Mon Sep 29, 2014 1:07 Using the Raspberry Pi. . moriartynz Posts: 10 Joined: Tue Dec 24, 2019 5:28 am. Contents of /boot/config. The reason is that on each platform one of the i2c I2C HAT not working on pi 3. I2C is needs one (and only one) pull up resistor on the bus so it is common to not include (or jumper out) pull up resistors by default If you are not sure post me a link to the schematics for YOUR weather hat and I'll take a look Same situation with me. It shows up on the IdSD and IDSC pins when I connect it to them, but not on I2c. Troubleshooting. Slowing the I2C clock would also help. I see one but that seems to be for If i use my windows i2c to usb tool it is possible to control the driver, but my pi does not show any connected device if i attach it to it. Best. S [A0 & A1 jumpers ON] connected to I2C As for /boot/config. Screenshot 2024-01-02 at 22. But same i2c commands are not working without sudo through ssh. Did you find a solution for your problem ? Regards. I am trying to connect the VL53L0X ToF Module to measure some distances, but whatever I try I cant get it With the help of Philip I managed to get i2c working on the PIC16f1509. Tue Nov 27, 2018 7:01 am . Hi everyone, i have a problem regarding the I2C Bus on my Rspberry Pi 3B. ===== In this program a TMP102 type I2C compatible temperature sensor chip is connected to raspberry Pi. 15. I've done this on a previous revision of my board with a Pi Zero so I know the code on both ends is working, I've got my arduino wired to GPIO 2 and 3 which should be I2C 1? I have been trying to establish communication with a device that for some reason the raspberry pi does not detect during the i2c scan. However, when I check if the device is detected using i2cdetect -y 1, nothing is displayed, just the empty I 2 C address table. Also my earlier C code which worked successfully on Raspberry Pi B+, is not giving any output on Raspberry Pi 2. i2c issue: argon one fan not working. Is there anything I'm doing wrong. The reason is that on each platform one of the i2c interfaces is nominally owned by the VideoCore VPU (usually i2c0), while the other (usually i2c1) is left for the ARM. dan11 Posts: 32 Joined: Wed Feb 05, 2014 10:01 am. Controversial. Q&A. Peter_W Posts: 12 Joined: Wed Aug 19, 2020 4:23 pm. Your answer could be I have a Raspberry Pi 4 B and I'm trying to set up in I2C Connection with an MCP23018-E/SP I/O-Port-Expander via GPIO02 and GPIO03. 12 posts • Page 1 of 1. Posts: 2 Joined: Fri Jun 16, 2023 9:21 am. txt and then adding the line dtparam=i2c_vc=on, performing a reboot, starts up the i2c-0 bus! And all is good. txt for whatever reason the line added by raspi-config for i2c did NOT work so I commented it out. 80 kernel. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi We use some essential cookies to make our website work. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi Press. Please provide clear photos showing All the device not work directly on raspberry pi I2c bus without change, maybe you can try to add/remove the pull-up resistor. I have connected an ssd1306 OLED and BME280 to my Pico. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 Everything appears to be working well but the last step for my device is to get I2C communication working between the Pi and an Atmega328p chip that is on board. SO I am using a CO2 sensor from sandbox electronics: You have not connected the device to the Pi properly or you have connected it properly but in 5V mode and have destroyed the Pi GPIO. i2c I2C adapter i2c-12 i2c 107d508280. pi@raspberrypi ~ $ FTrevorGowen Forum Moderator Posts: 7557 Joined: Mon Mar Interfacing (DSI, CSI, I2C, etc. I have enabled I2c on the I'm running raspbian on my pi and followed this tutorial to get the i2c going. HI, I am new to this forum and I am using Raspberry Pi-2 Model B V1. Either just ignoring i2c Interfacing (DSI, CSI, I2C, etc. Change the screen with another screen (I ordered three) Result: not working 2. I2C on the Pi uses 3V3. # Designer Systems DS-RGBW LED Lighting Shield Raspberry-PI Demonstrator # Requires Raspberry-PI A or B board # DS-RGBW. uk/htm/usb_iss_tech. However, when I type the. ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 The problem now is, I cannot get the screen to work, in terms of it does not even show up in the Raspberry PI I2C list ("sudo i2cdetect -y 1"). 9. Provide details and share your research! But avoid . LED matrix 16x32 Adafruit not working. Both works isolated in diferent programs, but when i try to use both in a single program, Using the Raspberry Pi. I2C connection with STM32 not working. I2C LCD not detected. io Posts: 1 Thu Feb 23, 2023 1:23 am . co. help-request Locked post. txt #dtparam=i2c_arm=on This can make audio work in # DMT (computer monitor) modes #hdmi_drive=2 # uncomment to increase signal to HDMI, if you have interference, blanking, or # no display #config_hdmi_boost=4 # uncomment for composite PAL #sdtv_mode=2 #uncomment to overclock the arm. I had just got a 16x2 I2C LCD screen, I installed the RPLCD library for python on my raspberry pi 4. Mon May 09, 2022 7:57 am . But when i used the same code on Raspberry Pi B+ which has spi module spi_bcm2708, there it gives proper output. 3V, SDA1 & 3. I was able to enable the i2c bus in HASSIO on all my other Raspberry Pis, but I can not enable it on my Pi4 running hass. For BCM 2 and 3, you see “SDA1” (I2C data) and “SCL1” (I2C clock) under Name. The same case with SCL1. dtparam=i2c_arm=onand dtparam=i2c1=onhave been added to /boot/config. On the other hand, some old Raspberry Pi models are Raspberry Pi Engineer & Forum Moderator Posts: 17318 Joined: Wed Dec 04, 2013 11:27 am Location: ZZ9 Plural Z Alpha, aka just outside Cambridge. All you need to have is Interfacing (DSI, CSI, I2C, etc. Using i2cset I tried to set data 0x01 in the register 0x00 but it is showing data mismatch. Provide details and share your research! But avoid Asking for help, clarification, or responding to other answers. If not you will have to buy an I2C multiplexer chip or use an additional software I2C bus for each additional module. 8K resistors in the raspberry 3 (see the ohmmeter measure with Pi powerd off of course :) ) I tried to change I2C baudrate by the command: sudo modprobe -r i2c_bcm2708. I had to do a bit of extra wiring to get it all to work but I got it done and it does work, I ran . i2c on pi zero v 1. Either way this issue is resolved. I've tried all my x5 PICOs and different oleds and still nothing. (maybee i mixed up fiirst and second Display with first and second I2C) 6by9 Raspberry Pi Engineer & Forum Moderator Posts: 17306 I checked that there are a built in pull-up 1. While the system is inside the plastic enclosure, none of the sensors are detected on the I2C bus. But it does not work when I try it on Raspberry Pi 5. I did a clean reinstall of the lastest version of Raspbian and I2C still doesn't work. I tried using another All advice given is based on my experience. ) Raspberry Pi 400 and 500 Raspberry Pi Pico Simple solution is that the config menu only enabled i2c-1 bus, not the i2c busses in general. tx the line dtparam=i2c_arm=on This all works fine on Raspberry Pi 4B. $ cat /boot/config. . I made an electrical reconnection and use the same SD card. The temperature readings are displayed on the PC On those boards the INA219 included are perfectly detected. Now you have a set of conflicting driver modules enabled. Everything works like a charm when connected to Pin 0 (sda) and 1 (scl) i2c pins. Hello all, I have several Raspberry Pi and I am dealing with issues when I use the I2C. Is there a library I can load. Hello, I have a raspberry pi zero 2 W, with which I would like to retrieve data from two sensors, one with i2C (pressure/temperature) and the other with UART (IMU 9dof). I am nto able to understand wether i2c is working or not in my board. however, once connected it doesn 't show up when i run i2cdetect -y 1. Troubleshooting [solved] IR Receiver not working. None of the read and write sequence works and I always get 0x00. Help with i2c lcd not working properly. Both were working at the same time. I I2C Device (DS1307 RTC) not detected. Sun Sep 05, 2021 1:40 pm . Tried to change the cables Result: not working 3. i thought the chip was the problem so i tried all the other four AS5600 chips i I'm guessing your config. The 1 specifies the I2C bus. 7 posts • Page 1 of 1. Does anyone have the information of operationg temperature of the I2C peripheral? Thanks for contributing an answer to Raspberry Pi Stack Exchange! Please be sure to answer the question. My max7311 i2c device won't be detected - which i2c device are you trying to access? The relay board definitely does work, because I can access and operate it via a USB-ISS (http://www. I2C LCD not working. I would have assumed that people would be up-in-arms if something as fundamental as i2c had changed between pi4 and pi5, On modern Raspberry Pi OS releases, you do not need to run the command with sudo. I tried almost everything but cant run it correctly. This should be a simple problem and I'm annoyed that I can't solve it on my own. Hairyloon Posts: 136 Joined: Wed Jan 20, 2016 10:42 am. @joan, here is what drives me crazy, just shortened the wires about 5cm, and same thing happened. I have heard that the bcm2835 and bcm2837 chip ar almost identical, so I should be able to use the bcm2835 library to communicate over i2c, yet I don't see anything happening. I have another I2C air quality sensor from adafruit(ENS160) that also have 10k pullups, downloaded the driver and wired Interfacing (DSI, CSI, I2C, etc. cpp files are as under. I am running a test program which shows "hello world" on an I2C OLED display, when using GPIO 8/9. Has anyone be able to get the AHT10 i2c temperature/humidity sensor to work with a Raspberry Pi? I have a Pi-0-w that is working great with the GY-21 i2c temperature/humidity sensor (https: The reason is, that the AHT10 CAN NOT WORK WITH OTHER DEVICES ON I2C. I2C device (PCA9685) suddenly not working - Debug options? Joined: Mon Mar 30, 2020 12:38 pm. Sun May 02, 2021 12:45 am . When using the same code (just changing the pins) using Using the Raspberry Pi. When I try to scan one device, it seems fine, but as soon as any more come onto the I2C bus, it never seems consistent with the znix. Euticus Posts: 7 i2c on pi zero v 1. Hi. 2kohm resistance each between SCL1 & 3. I bought three of them (2x FOV 55°, 1x FOV 110°) : the two 55° do not work : the first is not detected by i2cdetect, the second one is detected at all addresses. UART connected sensor not working on raspberry pi zero 2w. Code: Select all. I2C not working at a low temperature. I have used the Interfacing (DSI, CSI, I2C, etc. That will document the I2C registers and their meanings. Also, just to note, the RGB In my raspberry Pi the default i2c failed to communicate using the gpio pins 2 and 3. I also rewired the SDA/SCL/COM/3V3 but still not working, it was working yesterday for 365 days. When i run "i2cdetect -y 1" it shows all the address to be empty. 13-v7+" firmware on Raspberry pi 2 model B V1. 5V was required. 10K resistors are to light, try something in the 3-4K range. Pico with SPI and I2C not working. Sun Mar 05, 2017 8:29 pm . 7 posts • Page 1 of 1 Getting TCA9548A i2c mux to work with PICO. I'm having a similar issue. Mon Dec 13, 2021 10:11 pm . Seeing every address is a symptom of SDA (GPIO 2) This tutorial will walk you through getting the I2C and SPI interfaces of your Raspberry Pi working. Hi Interfacing (DSI, CSI, I2C, etc. The -y disables interactive mode, so it just goes ahead and scans. But due to my very bad Raspberry Pi Engineer & Forum Moderator Posts: 7957 Joined: Wed Aug 17, 2011 7:41 pm HDMI CEC Client tx Broadcast Active Source is not working (DSI, CSI, I2C, etc. I am trying to interface HMC6343 magnetometer with a Raspberry Pi I2C using PX4 autopilot code. 28. Viewed 4k times 0 . Re: CM4 I2C Clarification. Wed Sep 21, 2016 3:57 pm . I am using M24128 EEPROM as slave. 4. sudo gpio readall. I also tried adding pull resistors just in case that was the issue but that did not work either. General. I have 2 raspberry, both I have tried, got same result. I shows /dev/I2c-1, but my device still isn't detected. If the I2C device is detected, in principle I2C communication should work. Before SCREEN_type=8,I2C_bus=10 The raspberry PI hardware platform is pi5 I rebooted and the screen didn't work (albeit illuminated but with a dark background) (because the screen will not be auto-detected). 33. I used the AN734 and my main problem was that the ANSELB was not configured. gpio readall. The NTAG already has data, it is readable from a cellphone with NFC or from another microcontroller (Arduino and PIC tested); when trying to read with "i2ctools" like "i2cdetect -y 1" the device addres does not show. They also gave me the cable for the display on the Pi 5. 3V connect to VCC SDA connect to SDA SCL connect to SCL Ground connect to GND. When I2C is disabled on the Raspberry Pi, you will not see a /dev node for it: ls /dev/i2* ls: cannot access ‘/dev/i2*’: No such file or directory. This lead to each individual i2c slave to have roughly the same random misbehaviour: sometimes working, sometimes i2c timed out, sometimes the sensor was not seen on the i2c bus, In Power-OFF condition, when I checked the resistance between the SDA1 and 3. Hello, I tried to get the data from a sensor using Raspberry Pi Zero via I2C, but the communication between the sensor and rpi zero stopped around -10 degree Celsius. That's why I can't decide what is the exact problem. uberscubajim Posts: 171 Joined: Thu Jun 21, 2012 12:22 pm Using the Raspberry Pi. These symptoms are common when long wires are connected to the I2C bus. So I wonder if that update interrupt should even work with isl1208 and RasPi, where there is only With raspberry not working. Raspberry Pi Certified Educator Posts: 3 Joined: Thu Oct 24, 2013 11:29 am. Here is the output of . ) Raspberry Pi 400 and 500 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards AI Accelerator AI Camera - IMX500 Hailo; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 I'm trying to make I2C work on my Raspberry Pi 2 model B. It may well be a coincidence or evidence, but this seemed to happe after I also wired in a 1-wire temperature probe Using the Raspberry Pi. But now after literally doing nothing different, it is not working. When I adjust the contrast, only one side ends up working at a time. 2 posts • Page 1 of 1. Any Try sudo i2cdetect -y 1 or sudo i2cdetect -y 0 (if you using old Raspberry Pi) and run it on root. 7v7-aufs #1 SMP PREEMPT Wed Sep 16 13:19:27 CEST 2015 armv7l GNU/Linux is that way the program does not work?? jamesh Raspberry Pi Engineer & Forum Moderator Posts: 34333 Joined: Sat Jul 30, 2011 7:41 pm. The HMC6343_registers. Making statements based on opinion; back them up with references or personal experience. Raspberry Pi 5 and i2c OLED DIsplay not working Wed Sep 11, 2024 12:43 pm I am trying to get a 0. Connected like so (ignore cables, they are for a 1-wire temp sensor) Setup so far: Enabled I2C with raspi-config. takf hydgm hitsuih ibfqmeu tmu jrcs fnrcx qqwy nwjaoj ztrs