04-26-2018, 04:45 PM
When you say the i2cEmail didn't work do you mean no email came? If so that's good, that means the I2C bus isn't locking up and Arduino is probably ok. Any chance you can upload the original sketches just to verify the problem still exists? It doesn't sound like hardware now unless the RTC is acting up.
EDIT:
How do you have the RF modules connected? Which pins do they use?
EDIT:
How do you have the RF modules connected? Which pins do they use?