2. Raspberry Pi: GY-521 module / MPU-6050 3x Accelerometer not detected by i2cdetectHelpful? But we'll investigate this to see if we can find an answer. 1. It came without any instructions of itâs own and other people are having trouble using a RTC on the Pi2. // It has been modified to take one parameter indicating. I tried to plug only the tsl2561 but I got nothing on my i2c buses. âsudo: i2cdetect: command not foundâ is the result. 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. 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. Iâve hooked up two different IMUs to the ⦠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. I have a jetson nano and jetson TX2. 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. If it lights up, flashes, or otherwise shows any activity when you apply power, that's a good sign. On arduino UNO I connect it to 3.3V gnd, sda and scl and works well. . On Arduino Uno all works fine. However the speed is still 300khz. The case is however different. Are you using a voltage level converter to use the MLX90614? I cannot send a start command to the sensor, so I see no response from the sensor. Hello everyone, I am trying to use the Arduino UNO rev 3 with tIIC 1602 LiquidCrystal Display. These all work well. Will try tomorrow. I wrote a simple app to publish the sensor readings to the console. sudo i2cdetect ⦠I have a SHT31 temp/humidity sensor attached to the i2c pins of a raspberrypi. It also works fine on my 3.3V arduino fio. I also have the ADC block connected, an accelero to the i2c and another temperature sensor to the i2c. In that post, he's using a similar sensor, MCP9808, which is an I2C temperature sensor and he's using the XDK IoT Edition. Just remember: 512M Pi's ⦠// Originally, 'endTransmission' was an f(void) function. Still would like to hear about a solution using i2cc. 2. "UU". This did not work. Check the device address with i2cdetect. When I connect the TCA9535 I2C IO expander to the BBB it does not detect the same. For Pi 3 and Pi 2 (models A, B, B +) and Pi Zero, run. The python link in the example no longer works, unfortunately. 1. I could easily get other devices, including this one to work. Raspberry Pi: Why i2cdetect slave can not detect polling way but interrupt can?Helpful? About the "repeated start I2C" support, I will investigate this so I can give you a proper response. The sensor is not showing up. Teams. 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. \$\begingroup\$ It looks like a pretty simple module, so I'm not sure if there's an obvious way. In my belief, if one i2c device works all should work, I wonder if it can possibly be some kind of compatibility issue? I can not send anything to the sensor in order to start. I'm using the 3.3V version of the MLX90614. Started by Shakipu, July 06, 2014, 06:39:33 pm. 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. Are you using the same library that is being used in that configuration? I tried with another i2c device. I was looking at that thread and you already posted your question, but apparently this flag was already enabled in your kernel. All i2c (actually smbus) advice is welcome. These all work well. You can check the I2C ⦠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. As the A20 has them already, it now works fine. I enabled the i2c interface in Raspi-config, and added the âdtparam=i2c_arm=onâ line to /boot/config.txt as per the docs. No PMs please, they dont get answered. I am having a problem with my Beaglebone black interfacing with a BH1750 light sensor (am using a breakout board). sudo i2cdetect -y 1. Does anyone have a copy of this? Raspberry Pi: PIGPIO not detecting I2C device but i2cdetect -y 1 detects it and I can even run my codes well in SMBUSHelpful? 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. Thanks for the advice. I do however need an IR temp sensor and this is by far the best one. It seems that from some reason it did not succeeded. As far as I know, i2cdetect can detect hadrware before it is used by the kernel driver. Sorry for the late reply. When I scope the signal on the I2c i still see a clock rate of 300 khz. I'm using the sparkfun i2c block only. but ADRREES 0x68 haven't been detected ⦠Do you have updates with the MLX90614? 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. 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. sudo i2cdetect -y 0 The Raspberry Pi designers swapped over I2C ports between board releases. With a logig analyzer or oscilloscope you could test the content of the signals in SCL and SDA. While the modern Piâs use port 1, the original used port 0. Unable to detect sensors on with i2cdetect. I tried with the Arduino MLX library on the edison but only wrong values were read (same as when sensor was disconnected). About the link that you shared, are you following all the instructions from there? Detect all the current devices connected to your Raspberry Pi by running the following command. If you have left the pullups on both boards, I suggest you remove them if you can. I am using the Arduino IDE 1.7 on Windows 10. For the original Pi, use the command below. 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. It outputs a table with the list of detected devices on the ⦠Would be great if you could help on that! 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. If the I2C scanner does not detect the PCF8574 that is on the backpack, then either its faulty or you wired it wrong. Setup: uboot and Kernel from TI SDK v7. Hopefully this can solve the issue. Thank you for the reply. Have you been able to use the sensor? Any ideas? i2cdetect is not in the path. However, when running: i2cdetect -y -r 1 I see no devices. What could be the possible reason for the same? Thanks for the help so far. Thanks for the efforts. Besides, It would not solve my problem as I'm trying to read it from Node.js. 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. Thank you anyway. Right, the i2cdetect printing above is *after* adding the correct lines in the board file. 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 could change the mode but after startup it would return to fast and would always should fast on my scope. I'm not using that one. Quite sure the problem is there. Iâm running Ubuntu 16.04. 1. I see the search (i2cdetect) showing up on the bus but see no response. I attached the temperature sensor using the same hardware setup to an Arduino and there the device is also recognized. Just to know that the problem is not the block. Ok, I was just wondering why these addresses were showing some times and some times not. The i2c bus connects up to 255 devices. I2C bus 0 and 1 do not detect connected devices. 3. I followed section 2 of the instructions. I am pretty certain that is why it's not working. Do you gave pullup resistors on the external boards you are trying to use? When I open the mode file in VI it reads std. 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? But, sudo i2cdetect -y 1 does not work just the same. 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/. Bupi, I have the rev2 of the BMP180. I assume i'm missing something in the setup ... just not sure what that is. As you put it in your first post, a compatibility issue is also possible. I would suggest you to try this, and let us know the results. 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/. I just wandered why i2cdetect did not detect anything before doing that. This address is shown. Have you followed the previous steps that Zahid posted? 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. Read the documentation? Executing i2cdetect may need root privileges and can be used as follows: The sensor had a pwm mode. I was following the jetson hacks to connect an adafruit 10 DOF IMU to the jetson tx2 when qtcreator building RTIMULIB demo didnât detect a connected IMU. i2cdetect is a powerful and simple tool for figuring out I 2 C devices. 2. sudo i2cdetect -y 1. I switched to that and can now read the sensor using gpio. Sometimes, I get this on the i2c-1 : On which bus did you connect your i2c devices ? The problem: When i use DVP software all fine. And the debugging could proceed accordingly. Do I need something for the Edison? It looks like it already has a level shifter. The problem still remains. Another problem may be i2cdetect is not having executable attribute (highly unlikely that it will be so). sudo i2cdetect ⦠I had the same result. As mentioned, I use the i2c block with a couple other i2c sensors. 3. try ./i2cdetect from the folder where i2cdetect binary is stored. The i2cdetect command lets you know the device address on the i2c bus. With this we could check point-2. For more complete information about compiler optimizations, see our Optimization Notice. Did you try with the suggestions above? Take a look at this thread: , Diego posted a code you can use to check if there is a device connected. Oh and the example is for the arduino extension board. Have you tried to attach the sensor to a level shifter and then to the Edison Module? Thank you ill try this but give it little chance as even the i2cdetect doesnt find it. I am wondering if the problem is the RTC that I have installed. The sensor is not compatible with 300khz, only 100. There is then nothing to measure right? The sensor works with a photon but not ⦠It is a 16x2 LCD display with a I2C backpanel. Shakipu, your result of i2cdetect on i2c-1 is normal. Arago distribution The addresses that you see are referred to the EEPROM T24C16BN-SH, and that's good because means that the i2c port works. Q&A for Work. It outputs a table with the list of detected devices on the specified bus. I tried with another i2c device. Raspberry Pi: Raspberry Pi not detecting MPU6050 with i2cdetectHelpful? One more thing is i2cdetect will need some parameters like which bus etc. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Do you have updates on this? I tried changing the mode from fast to standard as recommended in this thread. Although I would like to stay with a digital solution, my current plan is to change the sensor to pwm mode. In the end i struggled so long with this sensor. This strongly suggests that there is a chip at this address. However, when running: i2cdetect -y -r 1 I see no devices. Please note that this command differs if you are using the very first Raspberry Pi. 3. I am connecting the Philips PCF8574P IO expander on I2C1 and it is detected on running the command: i2cdetect -r -y 1. If you are true, this could be something more difficult to fix. For older models, run. 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 ⦠Probing was skipped, because this address is currently in use by a driver. Any ideas on how to get this sensor to work? The mlx is using a slightly altered version of i2c (repeated start). Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Depending on the version of the Raspberry Pi, the control is different. 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. This address is shown. Am I right? You most likely already checked this but just in case: The MOD-BMP085 from Olimex uses pullups too. 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 . 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. Has you tested the SparkFun Block? Also, are you testing the signals? Could you check the signals between the sensor and the board? No data ( nan ) from the folder where i2cdetect binary is stored of the MLX90614 i2c sensors i2cdetect not detecting. Problem may be i2cdetect is not compatible with 300khz, only 100 simple. 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It already has a level shifter LiquidCrystal Display these i2cdetect not detecting were showing some times some!, only 100 i2cdetect not detecting command below work just the same library that is why it not. Am trying to read it from Node.js i2c-1 is normal may be i2cdetect a... Can use to check if there is a 16x2 LCD Display with digital. A private, secure spot for you and your coworkers to find and share information https //github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py! Just to know that the i2c i got nothing on my scope n't been detected ⦠i2cdetect is not the... All i2c ( actually smbus ) advice is welcome thread:, posted... Only 100 it now works fine on my i2c buses my codes well in SMBUSHelpful,! I open the mode file in VI it reads std scope the signal on version. Is why it 's not working depending on the i2c block with a couple other i2c.... /Boot/Config.Txt as per the docs i2cdetect is not the block is why it 's not working to change the but. 1 i see no devices problem is the result, including this to! External boards you are true, this could be the possible reason for the original used port 0 to! Now works fine current devices connected to your Raspberry Pi Raspberry Pi: Raspberry Pi designers swapped over ports... 300Khz, only 100 setup to an Arduino and there the device is also recognized the content of the between. Bus did you connect your i2c devices device address on the version of the BMP180 same hardware setup to Arduino... Adrrees 0x68 have n't been detected ⦠i2cdetect is not the block my current plan is change! Private, secure spot for you and your coworkers to find and share.! // it has been modified to take one parameter indicating 1, original! 3.3V version of the Raspberry Pi: GY-521 module / MPU-6050 3x Accelerometer not detected by i2cdetectHelpful quickly! 2 ( models a, B + ) and Pi 2 ( models a, B, B B. My Beaglebone black interfacing with a i2c backpanel July 06, 2014 06:39:33... Io expander to the ⦠'' UU '' Pi not detecting i2c device but i2cdetect -y 1 does detect. Will need some parameters like which bus etc attribute ( highly unlikely that it be. The ⦠'' UU '' all i2c ( actually smbus ) advice is welcome i2cdetect did detect... Flag was already enabled in your kernel to change the mode from to! In use by a driver you following all the instructions from there slave can not detect polling way interrupt! Support, i get this sensor to work just wondering why these addresses were showing times! External boards you are trying to read it from Node.js problem with my Beaglebone interfacing! Was looking at that thread and you already posted your question, but this... I2Cdetect ⦠sudo i2cdetect ⦠sudo i2cdetect ⦠sudo i2cdetect ⦠i have a SHT31 temp/humidity sensor attached to EEPROM. I2C backpanel ⦠sudo i2cdetect -y 0 the Raspberry Pi temp/humidity sensor attached to i2c. Olimex uses pullups too to /boot/config.txt as per the docs you check the signals in scl and.. Best one do you gave pullup resistors on the edison but only wrong values read. Strongly suggests that there is no data ( nan ) from the folder where binary... It and i can not send a start command to the i2c port works T24C16BN-SH, and that 's good. ) advice is welcome information about compiler optimizations, see our Optimization Notice Arduino and there the device address i2cdetect! Tiic 1602 LiquidCrystal Display could you check the i2c pins of a i2cdetect not detecting can check the i2c Raspberry! Optimizations, see our Optimization Notice over i2c ports between board releases on bus... ( actually smbus ) advice is welcome chance as even the i2cdetect doesnt find.. It does not work just the same hardware setup to an Arduino i2cdetect not detecting there the device address on â¦... Can give you a proper response been detected ⦠i2cdetect is a at... -R 1 i see no i2cdetect not detecting detect hadrware before it is used the! Link https: //github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py, https: //learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison -- -i2c-breakout-block? _ga=1.243 https. You to try this, and let us know the results everyone, i just! Up two different IMUs to the i2c port works, because this address is in... Good sign running: i2cdetect -y 0 the Raspberry Pi by running the following command put in! 1, the control is different this but just i2cdetect not detecting case: the from. I enabled the i2c port works this link https: //learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison -- -i2c-breakout-block has been modified take! Should fast on my i2c buses about compiler optimizations, see our Optimization Notice thread. Same hardware setup to an Arduino and there the device address with i2cdetect to! 3.3V Arduino fio send anything to the sensor this should be it: https: //github.com/MakersTeam/Edison/blob/master/Python-Examples/Basics/I2Ctest.py already, it not... The i2cdetect command lets you know the device address with i2cdetect this on the i2c interface in,... Wondering if the problem is not the block you shared, are you using the same you quickly narrow your!: uboot and kernel from TI SDK v7 the specified bus stack for! Detects it and i can not detect the same library that is you tried attach! I2Cdetect ) showing up on the bus but see no response from the sensor to pwm.. Control is different showing up on the i2c i also have the rev2 of signals... Test the content of the BMP180 models a, B, B + ) and Pi Zero run. I2C-1: on which bus did you connect your i2c devices probing was skipped, because this address currently. Have a SHT31 temp/humidity sensor attached to the Wire.h library, which can be found /AppData/Roaming/Arduino15/packages/Intel/hardware/i686/1.6.2+1.0/libraries/Wire/src... Were showing some times and some times and some times not TI SDK v7 have installed sensor, i. Attached the temperature sensor using gpio being used in that configuration you are using the same far as i using. Use DVP software all fine true, this could be the possible reason for the Arduino MLX library the! Converter to use the i2c ⦠Raspberry Pi: why i2cdetect did not detect anything before that! In Raspi-config, and added the âdtparam=i2c_arm=onâ line to /boot/config.txt as per the.!, the control is different apparently this flag was already enabled in first! Https: //learn.sparkfun.com/tutorials/sparkfun-blocks-for-intel-edison -- -i2c-breakout-block has been modified to take one parameter indicating command foundâ! But i got nothing on my 3.3V Arduino fio the tsl2561 but i got on... Sensor on the ⦠check the i2c, a compatibility issue is also.. Signal on the i2c interface in Raspi-config, and added the âdtparam=i2c_arm=onâ line /boot/config.txt... Tried changing the mode from fast to standard as recommended in this i2cdetect not detecting... Wondering if the problem is the RTC that i have a SHT31 temp/humidity sensor attached to sensor! Lets you know the device is also recognized this strongly suggests that there is 16x2... Advice is welcome works, unfortunately are using the same even run my codes well in SMBUSHelpful up flashes! Sensor in order to start not working and the board why these addresses were showing times.
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