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int Arduino_HTTP_Client::post(const char *url_path, const char *content_type, const char *request_body) { return m_http_client.post(url_path, content_type, request_body); ...

Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...

// Example sketch showing how to create a simple messageing client // with the RH_NRF905 class. RH_NRF905 class does not provide for addressing or // reliability, so you should only use RH_NRF905 if ...