mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Updated MCP23008 MCP23017 (markdown)

andrethomas 2018-07-21 19:13:40 +02:00
parent 8e8865202e
commit c791ac1253
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
MCP23008-MCP23017.md

@ -28,6 +28,16 @@ The MCP230xx chip (or breakout board) must be connected to the ESP8266 and the I
![https://github.com/andrethomas/images/raw/master/mcp230xx/Generic_Config_Menu.PNG](https://github.com/andrethomas/images/raw/master/mcp230xx/Generic_Config_Menu.PNG)
One that is complete you may want to confirm that the Tasmota firmware is finding your MCP23008/MCP23017 chip by sending the command through serial or MQTT:
`I2Cscan`
You should see a response giving you an address within the range of the MCP23008/MCP23017 chip (0x20 through 0x27) which may look as follows
`MQT: stat/sonoff/RESULT = {"I2CScan":"Device(s) found at 0x20"}`
If you do not find it, check your wiring and pin configuration.
Configuration of MCP23008/MCP23017 by using sensor29 commands via serial, web console or MQTT messages
This option only requires the main define to be uncommented prior to compilation