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Member Since: February 7, 2012

Country: Canada

  • I had been using this module successfully with a usb to i2c dongle. I am now trying one on an atmega3128p and I always get a constant voltage out. I can detect the device with the Wire library on the expected address (0x60), I can send command and get no error and I have double checked my command format multiple times. I also tried different combination of pull-up resitors. I tried with two differents Breakout MCP4725 and only one device is on the i2c bus. I am now suspecting the clock speed. I have tried to change the clock speed with: TWBR = ((F_CPU / 100000L) - 16) / 2; with no success. Any other suggestion?! I'm sure the problem is very simple, but I can't get my finger on it.