Programming the Sonoff with Tasmota using the Arduino IDE
Make sure you configured the IDE as described in Prerequisite!
Load the file sonoff.ino into the IDE.
In the Arduino IDE for sonoff select from Tools Board Generic ESP8266 Module ( Tools Board Generic ESP8285 Module for CH4 version) and set the following options:
Upload Using: Serial
Flash Mode: DOUT
Flash Frequency: 40MHz
CPU Frequency: 80MHz
Flash Size: 1M (64K SPIFFS) ⚠️️**If Version 5.x.x -> Flash Size: “1M (no SPIFFS)”**⚠️️
Debug Port: Disabled
Debug Level: None
Reset Method: ck
Upload Speed: 115200
Port: Your COM port connected to sonoff
Open user_config.h and configure your WiFi settings and optionally your MQTT, Syslog, WebServer, NTP, etc. settings
Verify and/or compile the project and upload to your sonoff using the serial connection established above.
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