12 digital inputs, 16 outputs and 4 analogue inputs (max)
Requires minimum operating circuit
3-5V operation
To provide greater flexibility, the input / output pin configuration of the PICAXE-28X Microcontroller Chip can be varied by the user. The default configuration is 8 inputs, 8 outputs, and 4 analogue pins. A PICAXE microcontroller is a standard Microchip PICmicro microcontroller that has been pre-programmed with the PICAXE bootstrap code. The bootstrap code enables the PICAXE microcontroller to be re-programmed directly via a simple serial connection.