I purchased a 4 channel digital pot from ncd that is 100k value, and I used this script linked below and the max resistance I can get out of the pot is 5K based on the script, I need to be able to go up to 60k, and I have tried researching the chip for the registers but I cannot find anything on changing the resistance values.
I can go from 5K down to .09K which is fine for my other applications, but I need to go up right now for my current application.
Any help would be appreciated where I am going wrong or missing something.
Here is the closeup of the IC. I made sure it was the 100K version of the chip when I ordered it. I do have a few other devices on here as you can see on the second photo, and I made sure to have the pull up resistor on the first board on.
Traceback (most recent call last):
File “/home/pi/Desktop/4.py”, line 88
print “Resistance at WB: %.2f K”%(res[‘b’])
SyntaxError: invalid syntax
I am using Thonny on the raspberry.
I changed some parameters around and got it to work, but the resistance values from what I see are not right. I will check later today when I am there to measure the resistance and see if does what I want it to do. Please do let me know if there is something on the script that I need to fix to make it work.
@Anil_Bhaskar I just tried it on the Arduino with the i2c and it shorted the chip when I ran the arduino script from github. When you get the piece this week please test it on raspberry, because that is my main application. Its not changing anything on the pot with the script you linked. Thankfully I bought 2 of the same pot to use.