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

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