Part 2 - How to Expand Tasmota/Sonoff Devices with the I2C Protocol - MCP23017 GPIO Expansion - I²C

Part 2 of 2 - How to Expand Tasmota/Sonoff Devices with the i2c protocol.  Adding the powerful MCP23017 Chip to expand your ESP8266 device with 16 additional input/output pins.  We cover a few scenarios of advanced rules with the chip combined with rules for publishing other sensors to MQTT.

Parts Used in this Video:

MCP23017 GPIO Expansion
BME280 Temp/Humidity/Pressure
SHT31 Temp/Humidity
Breadboard and Jumper Wires
ADS1115 4 Channel Analog Input
Female Jumper Wires
PIR Motion AM312 Sensor - or 

Tasmota Supported Sensors

Rules and Commands used in the videos:

CP2102 USB Drivers:

Precompiled Tasmota Bin with ADS1115 and MCP23017 i2c Enabled:


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