General purpose MCU breakout boards. Pico series boards are extra small or low power and optimized for low profile embedding, and Micro series board are general purpose development and prototyping boards with rich peripherals for testing.
- PicoMEGA 328PB: Tiny (24x25mm) ATMEGA328PB breakout board
Lib: shared component and footprint libraries[Board Name]/[Board Name].pro: Main KiCAD project file[Board Name]_panelized.pro: PCB layout panelized to fill 100x100mm fab area
Here are the details for each of the hardware projects hosted here.
This is intended to be a general, low power ATMEGA328PB breakout board, sized as to be small enough to be embedded in other products (i.e. hardware mods). By keeping the MCU in sleep mode, power consumption can be greatly reduced, making the 328PB a viable option for battery powered electronics.
Feature:
- Ultra-low quiescent (Iq = 400nA typ) current 3V3 switching regulator (300mA max) w/ regulator bypass jumper for higher power.
- External crystal (designed for 8Mhz max system clock) with compensation caps
- AVCC supply filtering per Atmel AN042 (omit by jumpering over)
- Reset ESD protection and debounce/ext pullup
- ISCP header
- All hardware pins broken out (no more microwire to pad prototyping)
- Optional indication LED connected to pin E1 for status indication needs (leave unpopulated if using TWI1 or low power)
Intentional Omissions:
- PWR/UART Status LED: Waste of quiescent power. Kludge in if needed.
- Reset button: takes too much space. Use jumper wire instead if manual reset is needed