I2C connection to Sonoff Basic

arendst / Tasmota

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

https://tasmota.github.io/docs

GNU General Public License v3.0

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I2C connection to Sonoff Basic #2408

Closed Hugo477 closed 6 years ago

Hugo477 commented 6 years ago

I would like to connect BMP280 to Sonoff Basic and want to avoid additional soldering to GPIO4.. Connected SCL to GPIO1, SDA to GPIO3, VCC and GND. Disabled SerialLog/Enabled SerialLog. But does not work in both cases. Am I mistaken somewhere?

arendst commented 6 years ago

Try to swap SCL/SDA. I did manage to get a BH1750 running this way.

Hugo477 commented 6 years ago

Great! SCL to GPIO3, SDA to GPIO1 and SerialLog OFF works. Thanks.

aenertia commented 6 years ago

What about GPIO13 (the Status LED?) I feel like this should be a toggle drop down in default build in Tasmota. Any reason why it isn't?

I would rather sacrifice the LED GPIO than the Serial.