So I gave up, because I needed this thing urgently....and I decided to use a GPIO input and I will buy the RPi B+ which has 40 GPIO and remove the MCP23017
Hi, thanks for the reply. I am bridging them together simply by connectiong them phisically together and then to the gpio. This is called cabled or, so if any of the two ones is high, the port should get high. I am just pressing the button for something like a second. The logic of the mcp23017 (as I...
Hi everybody, I am trying to use the interrupts of the mcp23017 with the raspberry Pi. I am writing my own python interface for the module, so I am just using the RPi.GPIO library for detecting the state of the interrupt pin and smbus python module to communicate with the mcp23017 by i2c. I easily m...