digiblurDIY

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:

NodeMCU
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 - https://amzn.to/2DhrkpA or https://amzn.to/2F7P9lE

Tasmota Supported Sensors
https://github.com/arendst/Sonoff-Tasmota/wiki/Sensors-Supported-by-Tasmota

Rules and Commands used in the videos:
https://www.digiblur.com/2018/11/part-1-of-2-how-to-expand-tasmotasonoff.html

CP2102 USB Drivers:
https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Precompiled Tasmota Bin with ADS1115 and MCP23017 i2c Enabled:
https://github.com/digiblur/Sonoff-HydraBasic-Tasmota/raw/mas…

Our first part of the I2C (I²C) sensor expansion with Tasmota. Add multiple sensors with minimal GPIO pin usage with a wide array of sensors on the market.  Add additional GPIO pins, LUX, Humidity, Pressure, Gas, Etc.

Parts Used in this Video:

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

Tasmota Supported Sensors
https://github.com/arendst/Sonoff-Tasmota/wiki/Sensors-Supported-by-Tasmota

CP2102 USB Drivers:
https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Precompiled Tasmota Bin with ADS1115 and MCP23017 i2c Enabled:
https://github.com/digiblur/Sonoff-HydraBasic-Tasmota/raw/master/tasmota_6307_1m_i2c_sensors.bin

MCP23017 Console Commands Used:

sensor29 0,5
sensor29 1,5
sensor29 8,5
sensor29 0,T
sensor29 1,T
sensor29 8,T

sensor29 3,2,0
sensor29 2,2,0

MCP23017 Rules:

rule1 on event#MCPINT_D2=0 do backlog sensor29 0,OFF;senso…

Two switches shown in the video:

Martin Jerry Switch
Martin Jerry Dimmer

Did a rather short (sarcasm) live stream showing the process to break open the smart switch, identify features, flash tasmota, setup the template, etc. It was my first time doing this switch model and first time doing the real live stream.

I also showed the bonus of the very cool new dimmer switch I've been working with on and off. It's very close and works out of the box right now as it is with a few Tasmota rules.

Had a lot of fun and let me know if you'd like to see more of these (hopefully shorter next time!)

We are showing additional tips and tricks on the KULED WiFi Smart Switch; 3-Way Config, Long Press Actions to control other devices, LED Control, and LED Dimming.  Learn how to use Tasmota rules with the various configurations in your projects.

Watch the previous video of how to flash the KULED Smart Switches as we are setting them in a 3-way configuration!  https://www.youtube.com/watch?v=4nX90vhAniQ

Parts List (to flash Tasmota):
KULED SmartSwitch (2 Pack)
USB FTDI Adapter(for Flashing, set jumper to 3v3 - NOT 5 volts) Male Headers
Jumper Wires

The KULED WiFi Smart Switch unboxing and Tasmota firmware flashing tutorial.  These switches have been welcomed by many as an easy solution to their smarthome projects.

Can it replace a Sonoff Switch?  You be the judge. One of the easiest devices to flash, with NO soldering!  Don't forget to set your flashing adapter to 3.3 volts!

Parts List:
KULED SmartSwitch (2 Pack)
USB FTDI Adapter(for Flashing, set jumper to 3v3 - NOT 5 volts)
Male Headers
Jumper Wires




Verify your header layout is the same as pictured, some switch variants have labels the layout is different.
HomeAssistant Binary Sensor Config YAML- platform: mqttname: "KuLED Test"state_topic: "stat/KULED-1/POWER"command_topic: "cmnd/KULED-1/POWER"availability_topic: "tele/KULED-1/LWT"qos: 1payload_on: "ON"payload_off: "OFF"payload_available: "Online"payload_not_available: "Offline"retain: false

GitHub with the pictures and sample HomeAssistant C…

The Sonoff Hydra-Basic with two capacitive touch buttons and a PIR motion sensor.  Break into the powerful Rules of the Tasmota firmware and control more than one light/function with a Sonoff Basic.

Parts List:
Sonoff Basic
USB FTDI Adapter(Sonoff Flashing)
Male Headers
AM312 PIR Sensor
Capacitive Touch Button
Jumper Wires
Fuses (optional but recommended)

DrZzs video on step by step how to flash a Sonoff - https://www.youtube.com/watch?v=KMiP9Ku71To


Tasmota Rules Commands Used:backlog switchmode1 3;switchmode2 1;switchmode3 1 rule1 on switch2#state=1 do publish cmnd/S20Beta/POWER TOGGLE endon rule1 on rule2 on switch3#state=1 do publish HydraBasic/PIR/state YES endon on switch3#state=0 do publish HydraBasic/PIR/state NO endon rule2 on rule3 on switch3#state=1 do publish cmnd/TuyaDimTest/Dimmer 75 endon on switch3#state=0 do publish cmnd/TuyaDimTest/Dimmer 25 endon rule3 on HomeAssistant Binary Sensor Config YAML- platform: mqttname: "HydraBasic Motion"state_topic: "H…