I am facing problems to talk to the WP7502 (on the MangOH) via UART1 on the IOT0 connector. I have used a voltage level translator between Sprakfun 5V FTDI cable (https://www.sparkfun.com/products/9718 ) and the IOT0 connector to reduce it to 1.8V.
After opening putty and entering the port number and baud rate, the MangOH does not respond to any AT commands at all. But when using a Micro USB, the module responds to the AT commands I enter from the console!
Any idea what is going on??
Appreciate your support.