Hello, Even I am having the | Microcontroller › AVR › Need help for I2C/TWI article of engineers garage › Hello, Even I am having the December 30, 2012 at 9:41 pm #8886 Harsh DeshpandeParticipant Hello, Even I am having the same problem. I have 4.7k pull up resistor on SCL and SDA. The start condition is being transmitted, but the code hangs while receiving the ACK. What might be the problem? Regards Harsh
