A-Star 328PB Micro - 5V, 16MHz Pololu 3160

The A-Star 328PB Micro is a tiny programmable module featuring the ATmega328PB AVR microcontroller, a backward-compatible replacement for the popular ATmega328P that features more general-purpose I/O and many additional peripherals. This module provides access to all 24 digital input/output pins (of which 9 can be used as PWM outputs and 8 as analog inputs), all on a board measuring only 1.3″ × 0.7″. It ships preloaded with an Arduino-compatible serial bootloader that enables programming through the Arduino IDE via a USB-to-serial adapter, and the ISP pins are accessible for programming with an AVR programmer. This version features a 16 MHz resonator and a 5 V regulator that can be powered from 5.5 V to 15 V supplies.

Features

• Dimensions: 1.3″ × 0.7″
• Programmable ATmega328PB AVR microcontroller
  • 32 KB flash (0.5 KB used by bootloader, leaving 31.5 KB available for user program by default)
  • 2 KB SRAM
  • 1 KB EEPROM
• All I/O lines from the ATmega328PB broken out in a compact package
  • 19 general-purpose I/O pins available along the sides of the board
  • 5 additional I/O pins available on bottom edge
  • 9 pins can be configured as hardware PWM outputs (7 along sides of board)
  • 8 pins can be configured as analog inputs
• Preloaded with Arduino-compatible TTL serial bootloader
• 6-pin TTL serial programming header for use with a USB-to-serial adapter (we recommend our USB AVR Programmer v2, which can act as a USB-to-serial adapter)
• 6-pin ISP header for use with an external AVR programmer (we recommend our USB AVR Programmer v2)
• Power LED and user-controllable LED
• Reset button
• Two power options:
  • 3.8 V to 15 V (3.3 V versions) or 5.5 V to 15 V (5 V versions) on BAT+
  • USB-to-serial adapter can supply power to VCCIN on the serial header
• Reverse-voltage protection on BAT+ supply
• Comprehensive user’s guide