ESP8266 Community Forum

- Wed Apr 29, 2015 8:11 am #16010 https://github.com/MetalPhreak/ESP8266_ ... CP_Example

Microchip MCP23S17 SPI GPIO expander connected over the hardware HSPI module.

TCP Listener configured on port 33333. Send it a 2 byte command to turn the outputs on or off.

Code: Select allecho -ne '\xFF\xFF' | nc 192.168.5.1 33333

Could easily be expanded to a project controlling relays, triacs, etc.

http://d.av.id.au

- Wed May 06, 2015 7:42 am #16694 Just finished writing my first Android app



Source and details to come soon...

http://d.av.id.au

- Sat May 23, 2015 5:20 am #18237 That's the way to, keep it basic and build from there, nice

- Sun May 31, 2015 9:11 am #19036 Nice I bought some MCP23016s myself aiming for and ESP8266 with 'more' GPIO pins. Note the '0'.... (the '6' instead of '7' part means it's an older version... didn't know that and even paid 50 cents more ). For it to function you have to make an I2C connection which you can manage, I thought, by using two GPIO pins. Why did you use an 'S' version and use an SPI interface?