Pololu P-Star 25K50 Micro

Artikelnummer: PO3150

EAN: 4060137015083

HAN: 3150

Herkunftsland: CN

UPC: 802236393

TARIC-Code: 85423190000

The P-Star 25K50 Micro is a tiny programmable module featuring Microchip?s PIC18F25K50 microcontroller. It packs a Micro-USB interface and 16 digital input/output pins onto a board measuring only 1???0.6? and ships preloaded with a USB bootloader, so no external programmer is required.

Kategorie: Board

9,27 €

inkl. 19% USt.,

5 Pack auf Lager

Lieferfrist: ca. 1 - 2 Tage




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. Onboard 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.

Our comprehensive PO3150.pdf">user?s guide provides the basics you need to get started with the P-Star 25K50 Micro as well as detailed technical information.

This product requires a USB A to Micro-B cable (not included) to connect to a computer.


  • Dimensions: 1" × 0.6" (1.05" × 0.6" including USB Micro-B connector)
  • Programmable Microchip PIC18F25K50 microcontroller
    • 32 KB flash (8 KB used by bootloader, leaving 24 KB available for user program by default)
    • 2 KB SRAM
    • 256 bytes of EEPROM
    • Native full-speed USB (12 Mbps)
  • 5 V logic voltage
  • Internally clocked at 48 MHz, resulting in execution speeds up to 12 million instructions per second (MIPS)
  • Precision 16 MHz crystal
  • Many I/O lines in a small package
    • 16 user I/O lines along the sides of the board
    • 3 additional I/O pins available in other locations
    • 13 pins can be configured as analog inputs
    • 2 PWM output signals (one of which can be sent to four different pins)
    • 5-bit digital-to-analog converter (DAC) output
  • Three user-controllable LEDs
  • USB Micro-B connector
  • Can be powered from USB or external source regulated to 5 V by onboard regulator
  • Operating voltage: 5.5 V to 15 V
    • Can operate down to 3.8 V with decreased logic voltage
  • Reverse-voltage protection on external power input
  • PTC fuse on VBUS supply
  • Ships with a proprietary USB bootloader developed by Pololu for the P-Star
  • Bootloader is usable from Windows, Linux, and Mac OS X with open source software
  • No external programmer required
  • Compatible with standard Microchip compilers, development tools, and programmers


This diagram identifies the I/O and power pins on the P-Star 25K50 Micro. The diagram is also available as a printable PDF (161k pdf). For more information about the PIC18F25K50 microcontroller and its peripherals, see Microchip?s PIC18F25K50 documentation.

Included hardware

Two 1×10-pin breakaway 0.1" male headers and one 1×6-pin breakaway 0.1" male header are included with the P-Star 25K50 Micro. These header pins can be soldered in to use the board with perfboards,breadboards, or 0.1" female connectors.



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