We have just received a batch of 20 blueduino REV 2 boards. Using the "hardware serial monitor" sketch in the AB_BLE library, we can not get the AT COMMANDS to work. I have tried "AT", "AT+NAME? ", and AT+NAMETETONECM, there is no response. I have tried this on 3 of the 20 boards we received. Suspecting that the new boards came with an updated firmware I tried the new name command "AT+NAME=TETONECM".
This process works great on blueduino REV 2 boards we received a couple months ago. Does anyone have an idea of what has changed? I pulled the latest version of the library into Arduino but still no luck. What do you do if you can't communicate with the BLE module?