Hi again. I can't find a way to open a new post so I'm adding to an old one of mine. Might be a browser problem (Mac OS, Chrome 143.0.7499.193). Anyway, here goes:I've upgraded to OpenPLC v4. Your ...

Hi Thomas, Please tell me the card version you are using. I just tested with the latest version (6.2), and all the commands are correct.  

I bought the Eight RELAYS 8-Layer Stackable HAT for Raspberry Pi.   Today ... it started active strange. Using the python,  >>> import lib8relind >>> lib8relind...

No, the calibration means you connect two diferent voltages to the same channel (not in the same time) and inform the card wich voltage you connected. 24b8vin 0 cal 1 5 for 5V connected to channel ...

Thanks Alex.  I'll give it a try.  

Hi Tom,   Sorry for the late reply. As you can see from the card schematics, there is no capacitor on the EN pin, just a 15k pull-up resistor. We did not experience your behaviour, so we c...

Hi Peter,   Increase the frequency of the Raspberry Pi I2C port to 400k. For some use cases, solve the problem. Alex.  

This is a seperate topic - however I can't an option to create a new thread.  I have an issue with the HAT seemingly becoming unavailable after a period of time (the period varies from 5 secon...

I've finally gotten back to trying to debug this a bit more.  I've been sharing some traces, etc. with the esptool maintainers. They suggested that the problem may be caused by the lack of ca...

Ok great, 38400 did the trick! Thanks

Hi, The default port settings for Modbus are 38400,8,N,1. You either use the same on your scanner or change it using the command line interface (check the online help for details).  

Hi, I am attempting to use the card vis RS485 directly ( not using an RPI) ID switches are set to zero Terminator is on  485TX, 485RX are off I have set up a modbus scanner using a USB to...

Hi, I am attempting to use the card vis RS485 directly ( not using an RPI) ID switches are set to zero Terminator is on  485TX, 485RX are off I have set up a modbus scanner using a USB to...

Thank you, Alex.Just for clarification — does "Calibrate input channel, the calibration must be done in 2 points" mean that I should connect a known voltage (for example, 5 V) to di...

We are migrating our forum, you can find this post here: https://sequentmicrosystems.com/community/forum/topic/195735/eight-24-bit-analog-inputs-daq-8-layer-measurement-offset-errors

Hello Alex,Thank you for the information. I tried the firmware update, but it looks the same as before.Board firmware version is 1.4. Without input: With 5V input: After calibration for 5V...

Hi, The latest firmware version is 1.4. Calibration must be done at two points to be complete. The two points must be as close as possible to the two ends of the measurement scale for good results.

Hi Jan, We recently discovered that we have a bug in the firmware, and we took care of it. Please update the card firmware, instructions here. Anyway, for good results, you need to calibrate the c...

Hello, We are experiencing an issue with the measurement accuracy of the RPi expansion board Eight 24-Bit Analog Inputs DAQ 8-Layer (SM-I-022), which is brand new, recently purchased. The board is ...

Thanks for your time James