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There is this Mobile library TinyGSM that uses that ArduinoHttpClient library for an HTTPS example.
I have been working to try and do a HTTPS PUT with the TTGO T-Call v1.4 ; an ESP32 WROVER-B with a SIM800L GPRS module.
I have tried this https://github.com/vshymanskyy/TinyGSM/blob/master/examples/HttpsClient/HttpsClient.ino but immediately receive the following error in Arduino IDE:
Warning: Board breadboard:avr:atmega328bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328BB
/Users/genotix/Documents/Arduino/libraries/ArduinoHttpClient-0.4.0/src/HttpClient.cpp: In member function 'int HttpClient::startRequest(const char*, const char*, const char*, int, const byte*)':
/Users/genotix/Documents/Arduino/libraries/ArduinoHttpClient-0.4.0/src/HttpClient.cpp:87:61: error: logical not is only applied to the left hand side of comparison [-Werror=logical-not-parentheses]
if (!iClient->connect(iServerName, iServerPort) > 0)
^
/Users/genotix/Documents/Arduino/libraries/ArduinoHttpClient-0.4.0/src/HttpClient.cpp:97:64: error: logical not is only applied to the left hand side of comparison [-Werror=logical-not-parentheses]
if (!iClient->connect(iServerAddress, iServerPort) > 0)
^
cc1plus: some warnings being treated as errors
exit status 1
Error compiling for board ESP32 Dev Module.
Since it is the demo example I am wondering what could be in err here.
Would appreciate any hints. :) 👍
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