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2026-08-04 at 5:36 PM
#19767
I have.
Before opening a tcp connection, the Socket Receiving Mode should be made to 1 (passive mode). I have no idea why it works only while doing this. But it works.
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void ExpressifESP32::extraSetupForMQTT(){ // See :https://docs.espressif.com/projects/esp-at/en/release-v2.4.0.0/esp32/AT_Command_Set/TCP-IP_AT_Commands.html#at-ciprecvmode-query-set-socket-receiving-mode // This should be done before opening tcp connection _modem.sendAT(GF("+CIPRECVMODE=1")); } |
I found the modularsensor implementation difficult. Therefore wrote my own small class that wraps tinygsm for the functions that I need.
One thing I found is modemBaud is 57600 which is different from the comments in the esp class
