I bought A6 mini GSM module on aliexpress. https://www.aliexpress.com/i/32710017861.html
I’m using NodeMCU board. After few resets I managed to get “connected” from A6 mini couple of times, and managed to receive SMS, and show it in MQTT.
I can’t connect it every time. I don’t know what is the problem. I’ve been trying to repeat it, but i can’t get successful connection.
Serial monitor hangs waiting for connection.
23:13:50.187 -> Connecting to MQTT by IP adress 23:13:50.187 -> 192.168.0.50 23:13:51.687 -> _2G_TX_PIN 23:13:51.687 -> 12 23:13:51.687 -> _2G_RX_PIN 23:13:51.687 -> 13 23:13:51.687 -> Init 2G module: 23:13:51.687 -> 14 23:14:18.653 -> waiting for network connection
When I try to call the SIM in the module it rings, so I guess module is booted, however the serial communication seems to be failing.
Anyone can point me in the right direction?