Send data to HL7802

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Mangoh Red HL7800 Strange AT commands

Hello, I am trying to send AT commands to my HL7800 module on my mangoh red board, but it is acting strange… I have a TTL cable connected from my computer to pin 8 and pin 10, and USB going into CN305, GNSS and Cellular antennas and a LiPo connected. If I send AT, some times it responds with OK, and some times it responds with ERROR or some strange characters. AT OK AT IU AT ERROR AT ] AT OK My settings are 115200,N,8,1 with flow control turned off. Lastly, If I connect the UART ->…