"File:" cannot be used as a page name in this wiki. Building the gcc toolchain have a look at the github wiki Code examples Running the module The modules pins only allow 3.3v (use a multi meter to check your serial lines if you are not sure) Connect CH_PD to VCC to make it boot Uploading code The modules pins only allow 3.3v (use a multi meter to check your serial lines if you are not sure) see links Internal space links External SDK documentation (all chinees) DOCS VM file [1] Password: i90l Forum about the module seeedstudio.com/depot/WiFi-Serial-Transceiver-Module-w-ESP8266-p-1994.html ESP8266 ROM Bootloader utility Datasheet Introduction Technical Overview Characteristics Schema Ultra-low power technology Maximum integration ESP8266 application subject Specifications Power Interface