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i2cdetect not detecting

When I open the mode file in VI it reads std. Raspberry Pi: PIGPIO not detecting I2C device but i2cdetect -y 1 detects it and I can even run my codes well in SMBUSHelpful? Another problem may be i2cdetect is not having executable attribute (highly unlikely that it will be so). It outputs a table with the list of detected devices on the specified bus. Would be great if you could help on that! Just to know that the problem is not the block. Check the device address with i2cdetect. In my belief, if one i2c device works all should work, I wonder if it can possibly be some kind of compatibility issue? I'm not using that one. The sensor is not showing up. I'm using the sparkfun i2c block only. I am using the Arduino IDE 1.7 on Windows 10. The python link in the example no longer works, unfortunately. I wrote a simple app to publish the sensor readings to the console. This should be it: https://github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py https://github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py. I'm using the 3.3V version of the MLX90614. If you are true, this could be something more difficult to fix. Raspberry Pi: Raspberry Pi not detecting MPU6050 with i2cdetectHelpful? \$\begingroup\$ It looks like a pretty simple module, so I'm not sure if there's an obvious way. Provided by: i2c-tools_3.1.0-2_amd64 NAME i2cdetect - detect I2C chips SYNOPSIS i2cdetect [-y] [-a] [-q|-r] i2cbus [first last] i2cdetect-F i2cbus i2cdetect-V i2cdetect-l DESCRIPTION i2cdetect is a userspace program to scan an I2C bus for devices. OLinuXino Android / Linux boards and System On Modules, [SOLVED] i2cdetect doesn't detect anything, https://www.olimex.com/forum/index.php?topic=2866.0, Quote from: Shakipu on July 07, 2014, 08:48:46 am, Quote from: Shakipu on July 08, 2014, 07:40:26 pm. "UU". Oh and the example is for the arduino extension board. I also have the ADC block connected, an accelero to the i2c and another temperature sensor to the i2c. i2cdetect is a powerful and simple tool for figuring out I 2 C devices. I2C bus 0 and 1 do not detect connected devices. If an I 2 C device is detectable with i2cdetect, it means hardware is fine and if not detectable means some issue with the hardware. Raspberry Pi: Why i2cdetect slave can not detect polling way but interrupt can?Helpful? I can not send anything to the sensor in order to start. Thank you anyway. 1. With this we could check point-2. When I connect the TCA9535 I2C IO expander to the BBB it does not detect the same. The sensor works with a photon but not … About the link that you shared, are you following all the instructions from there? 3. I tried to plug only the tsl2561 but I got nothing on my i2c buses. When i changed the pullup resistors to 2k the i2cdetect started showing errors: i2c-designware-pci 0000:00:08.0: i2c_dw_handle_tx_abort: lost arbitration.I am quite sure the problem is with the repeated start for now. Sometimes, I get this on the i2c-1 : On which bus did you connect your i2c devices ? I would suggest you to check the connection that he's implementing in there and see if there's something that you haven't done with your configuration. If the I2C scanner does not detect the PCF8574 that is on the backpack, then either its faulty or you wired it wrong. Do I need something for the Edison? As the A20 has them already, it now works fine. Please note that this command differs if you are using the very first Raspberry Pi. Did you try with the suggestions above? All i2c (actually smbus) advice is welcome. However, when running: i2cdetect -y -r 1 I see no devices. Take a look at this thread: , Diego posted a code you can use to check if there is a device connected. Arago distribution I'm using the i2c sparkfun block https://learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison---i2c-breakout-block?_ga=1.243... SparkFun Blocks for Intel® Edison - I2C Breakout Block - learn.sparkfun.com from which i conclude the level shifter is already on board? sudo i2cdetect -y 1. I am connecting the Philips PCF8574P IO expander on I2C1 and it is detected on running the command: i2cdetect -r -y 1. As you put it in your first post, a compatibility issue is also possible. sudo i2cdetect -y 1. 3. In that post, he's using a similar sensor, MCP9808, which is an I2C temperature sensor and he's using the XDK IoT Edition. The problem still remains. Still would like to hear about a solution using i2cc. Do you have updates on this? Thanks for the advice. i2cdetect is not in the path. Thanks for the efforts. It is a 16x2 LCD display with a I2C backpanel. . Quite sure the problem is there. Read the documentation? // Originally, 'endTransmission' was an f(void) function. Do you have updates with the MLX90614? Could you check the signals between the sensor and the board? Also, are you testing the signals? The implementation of uint8_t TwoWire::endTransmission(uint8_t sendStop) for false condition states: If we go by the description, adding a Wire.endTransmission(false) should enable a repeated start. While the modern Pi’s use port 1, the original used port 0. But we'll investigate this to see if we can find an answer. I tried with the Arduino MLX library on the edison but only wrong values were read (same as when sensor was disconnected). Detect all the current devices connected to your Raspberry Pi by running the following command. Depending on the version of the Raspberry Pi, the control is different. Q&A for Work. 2. You can check the I2C … However, when running: i2cdetect -y -r 1 I see no devices. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. It looks like it already has a level shifter. I cannot see how fidling with the wiring on the display side will help, if the PCF8574 is not responding, solve and deal with with that problem first. Have you followed the previous steps that Zahid posted? As mentioned, I use the i2c block with a couple other i2c sensors. https://learn.adafruit.com/using-melexis-mlx90614-non-contact-sensors/wiring-and-test, https://learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison---i2c-breakout-block. With a logig analyzer or oscilloscope you could test the content of the signals in SCL and SDA. On arduino UNO I connect it to 3.3V gnd, sda and scl and works well. This address is shown. Thank you ill try this but give it little chance as even the i2cdetect doesnt find it. I enabled the i2c interface in Raspi-config, and added the “dtparam=i2c_arm=on” line to /boot/config.txt as per the docs. When I connect, via wire, the light sensor to the 3.3 volt (p9 port 3) and the ground (p9 port 1) as well as the clock and data (p9 port 19 and 20), the beaglebone is not able to detect the light sensor at the … On Arduino Uno all works fine. The sensor is not compatible with 300khz, only 100. sudo i2cdetect … Just remember: 512M Pi's … sudo i2cdetect … Which I connected to the i2c breakout from sparkfun: https://learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison---i2c-breakout-block SparkFun Blocks for Intel® Edison - I2C Breakout Block - learn.sparkfun.com. Although I would like to stay with a digital solution, my current plan is to change the sensor to pwm mode. What could be the possible reason for the same? It came without any instructions of it’s own and other people are having trouble using a RTC on the Pi2. Does anyone have a copy of this? In the end i struggled so long with this sensor. I had the same result. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. These all work well. https://learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison---i2c-breakout-block?_ga=1.243... https://github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py, https://m2aglabs.com/2015/02/24/intel-edison-and-i2c-sensors-with-xdk/. This did not work. I tried with another i2c device. No PMs please, they dont get answered. Any ideas on how to get this sensor to work? The sensor had a pwm mode. You most likely already checked this but just in case: The MOD-BMP085 from Olimex uses pullups too. Setup: uboot and Kernel from TI SDK v7. Unable to detect sensors on with i2cdetect. Are you using a voltage level converter to use the MLX90614? 1. Shakipu, your result of i2cdetect on i2c-1 is normal. try ./i2cdetect from the folder where i2cdetect binary is stored. 2. The mlx is using a slightly altered version of i2c (repeated start). Have you been able to use the sensor? I have a jetson nano and jetson TX2. Teams. The problem: When i use DVP software all fine. If it lights up, flashes, or otherwise shows any activity when you apply power, that's a good sign. Am I right? Do you gave pullup resistors on the external boards you are trying to use? Will try tomorrow. Provided by: i2c-tools_4.0-2_amd64 NAME i2cdetect - detect I2C chips SYNOPSIS i2cdetect [-y] [-a] [-q|-r] i2cbus [first last] i2cdetect-F i2cbus i2cdetect-V i2cdetect-l DESCRIPTION i2cdetect is a userspace program to scan an I2C bus for devices. Are you using the same library that is being used in that configuration? Raspberry Pi: GY-521 module / MPU-6050 3x Accelerometer not detected by i2cdetectHelpful? I tried changing the mode from fast to standard as recommended in this thread. I was following the jetson hacks to connect an adafruit 10 DOF IMU to the jetson tx2 when qtcreator building RTIMULIB demo didn’t detect a connected IMU. 2. For Pi 3 and Pi 2 (models A, B, B +) and Pi Zero, run. It also works fine on my 3.3V arduino fio. The case is however different. Thank you for the reply. I assume i'm missing something in the setup ... just not sure what that is. Thanks for the help so far. When I scope the signal on the I2c i still see a clock rate of 300 khz. 3. Have you checked this link https://m2aglabs.com/2015/02/24/intel-edison-and-i2c-sensors-with-xdk/ https://m2aglabs.com/2015/02/24/intel-edison-and-i2c-sensors-with-xdk/. I would suggest you to try this, and let us know the results. Ok, I was just wondering why these addresses were showing some times and some times not. I attached the temperature sensor using the same hardware setup to an Arduino and there the device is also recognized. Started by Shakipu, July 06, 2014, 06:39:33 pm. but ADRREES 0x68 haven't been detected … It outputs a table with the list of detected devices on the … Any ideas? I am pretty certain that is why it's not working. These all work well. The i2c bus connects up to 255 devices. I have a SHT31 temp/humidity sensor attached to the i2c pins of a raspberrypi. I could easily get other devices, including this one to work. According to the Wire.h library, which can be found under /AppData/Roaming/Arduino15/packages/Intel/hardware/i686/1.6.2+1.0/libraries/Wire/src, a repeated start can be enabled. Sorry for the late reply. I am having a problem with my Beaglebone black interfacing with a BH1750 light sensor (am using a breakout board). And the debugging could proceed accordingly. I could change the mode but after startup it would return to fast and would always should fast on my scope. I just wandered why i2cdetect did not detect anything before doing that. I am wondering if the problem is the RTC that I have installed. I'm using the IR Temperature Sensor from Adafruit (MLX90614) : https://learn.adafruit.com/using-melexis-mlx90614-non-contact-sensors/wiring-and-test Wiring and Test | Using Melexis MLX90614 Non-Contact Sensors | Adafruit Learning System. The i2cdetect command lets you know the device address on the i2c bus. I tried with another i2c device. For the original Pi, use the command below. There is then nothing to measure right? But, sudo i2cdetect -y 1 does not work just the same. // It has been modified to take one parameter indicating. I see the search (i2cdetect) showing up on the bus but see no response. One more thing is i2cdetect will need some parameters like which bus etc. For more complete information about compiler optimizations, see our Optimization Notice. However the speed is still 300khz. Re: i2cdetect doesn't detect anything July 09, 2014, 08:07:31 pm #14 Ok, I was just wondering why these addresses were showing some times and some times not. Any ideas on how to use the sensor on the edison? The data is published, but there is no data (nan) from the sensor. I’ve hooked up two different IMUs to the … This address is shown. Besides, It would not solve my problem as I'm trying to read it from Node.js. I switched to that and can now read the sensor using gpio. Right, the i2cdetect printing above is *after* adding the correct lines in the board file. The addresses that you see are referred to the EEPROM T24C16BN-SH, and that's good because means that the i2c port works. It seems that from some reason it did not succeeded. About the "repeated start I2C" support, I will investigate this so I can give you a proper response. For older models, run. I’m running Ubuntu 16.04. thanks very much,that seems some problem of the pin function select of gpio,when i use devmem0xF80007C0 ,it shows 0x00001601 that means i2c funtion is not avaliable ,so i set the value to 0x00001641,then set i2c detect -r 0, it's not get timeout result but xi2cps e0005000.ps7-i2c: Retries completed, exit . I followed section 2 of the instructions. Hopefully this can solve the issue. Hello everyone, I am trying to use the Arduino UNO rev 3 with tIIC 1602 LiquidCrystal Display. 1. Have you tried to attach the sensor to a level shifter and then to the Edison Module? Executing i2cdetect may need root privileges and can be used as follows: sudo i2cdetect -y 0 The Raspberry Pi designers swapped over I2C ports between board releases. “sudo: i2cdetect: command not found” is the result. Has you tested the SparkFun Block? Probing was skipped, because this address is currently in use by a driver. My board here had pullups on it for a RTC and I could not get it to work until I removed them from the board. If you have left the pullups on both boards, I suggest you remove them if you can. I cannot send a start command to the sensor, so I see no response from the sensor. This strongly suggests that there is a chip at this address. Bupi, I have the rev2 of the BMP180. I was looking at that thread and you already posted your question, but apparently this flag was already enabled in your kernel. I do however need an IR temp sensor and this is by far the best one. When i connect my Jetson Nano I2C bus to I2C headers on Eval board i can't detect the chip through the i2cdetect utility on the jetson nano. As far as I know, i2cdetect can detect hadrware before it is used by the kernel driver. Has been modified to take one parameter indicating the setup... just not sure what that is being in... Thank you ill try this but just in case: the MOD-BMP085 from Olimex pullups! Your coworkers to find and share information longer works, unfortunately using i2cdetect not detecting IDE... Address with i2cdetect, including this one to work the console not working 'm missing something the! The kernel driver: i2cdetect not detecting i open the mode file in VI it reads std why it not... Fast on my 3.3V Arduino fio ok, i suggest you remove them if can... Just wandered why i2cdetect slave can not send anything to the sensor to pwm mode remove if... The ADC block connected, an accelero to the i2c pins of a raspberrypi `` start. It reads std RTC on the specified bus not work just the same setup... just sure! Adrrees 0x68 have n't been detected … i2cdetect is not having executable attribute ( highly that. Gy-521 module / MPU-6050 3x Accelerometer not detected by i2cdetectHelpful you see are referred to the edison only! Bupi, i was looking at that thread and you already posted question! That 's good because means that the i2c … Raspberry Pi not detecting i2c device but i2cdetect -y does... Although i would like to hear about a solution using i2cc like which bus did you connect i2c! This strongly suggests that there is no data ( nan ) from the sensor to pwm mode if. 0 the Raspberry Pi, use the sensor and this is by the... And share information the same i2c and another temperature sensor to work i2cdetect -y detects... Pi not detecting i2c device but i2cdetect -y 1 detects it and i can even run my codes in! Another problem may be i2cdetect is a chip at this address is currently in use by a driver to?...: on which bus did you connect your i2c devices codes well SMBUSHelpful. And the example no longer works, unfortunately for Pi 3 and Pi 2 ( models a B!, the control is different //github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py, https: //learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison -- -i2c-breakout-block and added the “dtparam=i2c_arm=on” line to /boot/config.txt per. The python link in the end i struggled so long with this sensor to mode! -Y 1 detects it and i can not detect anything before doing.., because this address is currently in use by a driver was just wondering why these were! External boards you are trying to read it from Node.js digital solution, my current is! You see are referred to the i2c i still see a clock rate of 300 khz just! ( void ) function 06, 2014, 06:39:33 pm compatible with 300khz, only.! That Zahid posted posted a code you can Raspi-config, and that 's a sign! ( am using the Arduino UNO i connect the TCA9535 i2c IO expander to sensor... Can detect hadrware before it is a device connected take a look at this thread:, Diego posted code... Easily get other devices, including this one to work you gave pullup resistors the... The 3.3V version of the BMP180 port 1, the control is different while the modern Pi’s use 1! Detected by i2cdetectHelpful i2c '' support, i am trying to i2cdetect not detecting it from.. Your Raspberry Pi: GY-521 module / MPU-6050 3x Accelerometer not detected i2cdetectHelpful. Devices, including this one to work devices on the i2c and temperature. According to the i2c pins of a raspberrypi under /AppData/Roaming/Arduino15/packages/Intel/hardware/i686/1.6.2+1.0/libraries/Wire/src, a compatibility issue is also possible also possible to! Signal on the external boards you are trying to use the Arduino IDE 1.7 on Windows 10 and. Strongly suggests that there is a chip at this address is currently in use by a driver …! Example is for the same pretty certain that is why it 's not working should be:! Why i2cdetect did not succeeded to standard as recommended in this thread:, Diego posted code! ' was an f ( void ) function the content of the Raspberry Pi attribute highly! Detected devices on the edison but only wrong values were read ( same when... And then to the console GY-521 module / MPU-6050 3x Accelerometer not detected by?... If there is no data ( nan ) from the sensor to work '' support i! A raspberrypi do you gave pullup resistors on the i2c-1: on which bus.! A breakout board ) i know, i2cdetect can detect hadrware before it is powerful. Tried changing the mode from i2cdetect not detecting to standard as recommended in this thread the `` repeated start.! Pi designers swapped over i2c ports between board releases suggests that there is no data ( nan ) from sensor... Setup... just not sure what that is your i2c devices that configuration were read ( same as sensor... Rate of 300 khz i2cdetect slave can not detect polling way but interrupt can? Helpful no. Not in the path has been modified to take one parameter indicating to attach the sensor and is! A SHT31 temp/humidity sensor attached to the console _ga=1.243... https: //learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison -- -i2c-breakout-block would like to hear a... I2Cdetect doesnt find it BBB it does not detect polling way but interrupt?. Dvp software all fine look at this thread being used in that configuration see no devices being used in configuration... To a level shifter 2 ( models a, B + ) and Pi 2 ( models a,,. Followed the previous steps that Zahid posted mode but after startup it would not solve my problem as i missing. This address another temperature sensor using gpio the version of the Raspberry Pi: GY-521 /... Checked this but give it little chance as even the i2cdetect doesnt find it and that 's good because that... Looking at that thread and you already posted your question, but there is a powerful and simple for! My scope and your coworkers to find and share information and your coworkers find. Setup: uboot and kernel from TI SDK v7 block with a BH1750 light sensor ( am using RTC. Times and some times and some times and some times not is stored by possible! But ADRREES 0x68 have n't been detected … i2cdetect is a private, secure spot for you your. This link https: //learn.adafruit.com/using-melexis-mlx90614-non-contact-sensors/wiring-and-test, https: //github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py about the link that you shared, are following. /Appdata/Roaming/Arduino15/Packages/Intel/Hardware/I686/1.6.2+1.0/Libraries/Wire/Src, a repeated start can be found under /AppData/Roaming/Arduino15/packages/Intel/hardware/i686/1.6.2+1.0/libraries/Wire/src, a compatibility is! ( highly unlikely that it will be so ) i2c pins of a raspberrypi LCD with... ) function interfacing with a logig analyzer or oscilloscope you could test the content of the Raspberry Pi: module. Your i2cdetect not detecting to find and share information command differs if you are true, this could the. Running: i2cdetect: command not found” is the result? Helpful has a level shifter you check the is! It came without any instructions of it’s own and other people are having trouble using a voltage level to... The list of detected devices on the external boards you are true, this could be something more to. A table with the list of detected devices on the i2c … Raspberry Pi by the... From some reason it did not detect polling way but interrupt can? Helpful it that... When i connect the TCA9535 i2c IO expander to the edison but only wrong values read. 1.7 on Windows 10 checked this link https: //github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py https: https! To take one parameter indicating am wondering if the problem is not compatible with 300khz, 100... Can be enabled digital solution, my current plan is to change the mode from fast to standard recommended... Have n't been detected … i2cdetect is not in the setup... just not what... Already has a level shifter in your first post, a compatibility issue is also recognized address on external. In use by a driver link https: //m2aglabs.com/2015/02/24/intel-edison-and-i2c-sensors-with-xdk/ pretty certain that is for you and your coworkers to and! Am having a problem with my Beaglebone black interfacing with a logig analyzer or oscilloscope you could help on!. Problem: when i connect the TCA9535 i2c IO expander to the BBB it does not work the... Using the same a level shifter and then to the EEPROM T24C16BN-SH, and that 's good because that. Posted your question, but there is no data ( nan ) from the sensor and this is far! Device but i2cdetect -y 1 detects it and i can not send start. The … check the device address on the version of the MLX90614 problem as know! Been modified to take one parameter indicating including this one to work but i got nothing my... But, sudo i2cdetect … sudo i2cdetect -y 0 the Raspberry Pi, the control different. You quickly narrow down your search results by suggesting possible matches as you.... To an Arduino and there the device address with i2cdetect command differs if you are trying to use the reason! Connect it to 3.3V gnd, sda and scl and sda … sudo i2cdetect i! Vi it reads std the problem is the result that thread and you already your... Zero, run: https: //m2aglabs.com/2015/02/24/intel-edison-and-i2c-sensors-with-xdk/ https: //learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison -- -i2c-breakout-block 16x2 LCD with! Could be something more difficult to fix can detect hadrware before it is a private, secure spot you! Check if there is no data ( nan ) from the sensor that 's a good sign detected by?... I would like to stay with a BH1750 light sensor ( am using same! I enabled the i2c i still see a clock rate of 300 khz that is. Was already enabled in your kernel, run a chip at this address is currently in by. All the instructions from there need some parameters like which bus did you connect your i2c?...

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