Picon Zero
Picon Zero is a Raspberry Pi addon in the form factor of a Pi Zero. It contains an ATMega328 with the Arduino bootloader. The ATMega328 is connected to the Raspberry Pi via I2C and handles all the interface to the I/O ports and motor drivers. Specifically, the ATMega328 allows:
- Dual H-Bridge motor driver (DRV8833)
- Standard digital outputs (On / Off)
- PWM outputs (0 to 100%)
- Servo outputs (-90 to +90 degrees)
- WS2812B compatible smart pixels (up to 100 pixels)
- Standard digital inputs (On / Off)
- Analog inputs (0 to 255)
Picon Zero Released Files
All files are Licensed under Creative Commons BY-SA See creativecommons.org/licenses/by-sa/3.0/ for details
- piconzero.py (this is the main Python library)
- various python example files
- PiconZero08.ino (this is the ATMega code)
Programming the ATMega
You can reprogram the ATMega with your own code by using a USB to Serial converter that has the following pinout:
- DTR
- RXD
- TXD
- VCC
- N/A (usually CTS, but not used)
- GND There are many sources of this converter including the 4tronix shop: http://4tronix.co.uk/store/index.php?rt=product/product&product_id=533