Pololu P-Star Microchip 25K50 Board

The Pololu P-Star 25K50 Micro is a general-purpose programmable module based on Microchip’s PIC18F25K50 microcontroller, which has 32 KB of flash program memory, 2 KB of RAM, and built-in USB functionality. On-board features of the P-Star (abbreviated P*) include a 16 MHz crystal, a USB Micro-B connector, and three user-controllable indicator LEDs. A voltage regulator and power selection circuit allow the board to be powered from either USB or an external 5.5 V to 15 V source, while a resettable PTC fuse on the USB VBUS supply and reverse protection on VIN help protect it from accidental damage. The board ships with a USB bootloader that makes it easy to program the PIC microcontroller without using an external programmer.

Quick Spec

• Processor: PIC18F25K50
• RAM Size: 2 Kbytes
• Program Memory Size: 32 Kbytes (8 KB of the MCU's 32 KB of flash memory is used by the pre-installed USB bootloader. All 32 KB is available if you use an external programmer and erase the bootloader.)
• Motor Channels: 0
• User I/O Lines: 19 (All 19 can be used as digital I/O, 14 can be used as analog inputs, and one can be an analog output. 16 of the 19 are available along the sides for use in a breadboard.)
• Minimum Operating Voltage: 5.5V
• Maximum Operating Voltage: 15V
• Logic Voltage: 5V
• Reverse Voltage Protection On VIN
• No External Programmer Required

Dimensions

Resources

• Product Page
• Pololu P-Star User’s Guide
• Pinout Diagram
• Schematic
• PIC18F25K50 documentation

Shipping List

• 1 X Pololu P-Star Microchip 25K50 Board
• 1 X Header Set