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Categorie Prodotti al prezzo di costo Pololu P-Star Programmable Controllers



P-Star 45K50 Mini SV

COD : PO-3156
P-Star 45K50 Mini SV
16,95 € (excl. VAT)
20,68 € (incl. IVA)
Disponibilità :
on-order.gif spedito in 30 giorni

quantità disponibile: 34

P-Star 45K50 Mini SV dimensions, with U.S. quarter for size reference.

Overview

The Pololu P-Star 45K50 Mini SV is a general-purpose programmable module based on Microchip’s PIC18F45K50 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 switching step-down voltage regulator and power selection circuit allow the board to be powered from either USB or an external 5 V to 36 V source, while a current limit 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 user’s guide provides the basics you need to get started with the P-Star as well as detailed technical information.

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

P-Star 45K50 Mini SV, top view.

Features

  • Dimensions: 2″ × 0.7″ (2.05″ × 0.7″ including USB Micro-B connector)
  • Programmable Microchip PIC18F45K50 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)
  • Internally clocked at 48 MHz, resulting in execution speeds up to 12 million instructions per second (MIPS)
  • Precision 16 MHz crystal
  • 30 I/O lines in a small package
    • 28 user I/O pins on the two long sides of the board
    • 2 additional I/O pins available in other locations
    • 25 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
  • Reset button
  • USB Micro-B connector
  • Can be powered from USB or external source regulated to 5 V by onboard regulator
  • Operating voltage: 5 V to 36 V
  • 5 V logic voltage
  • Auxiliary 3.3 V linear regulator
  • Reverse-voltage protection on external power input
  • 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
  • Comprehensive user’s guide

Pinout

P-Star 45K50 Mini SV pinout diagram.

This diagram identifies the I/O and power pins on the P-Star 45K50 Mini SV. The diagram is also available as a printable PDF (547k pdf). For more information about the PIC18F45K50 microcontroller and its peripherals, see Microchip’s PIC18F45K50 documentation.

Included hardware

Two 1×18-pin breakaway 0.1″ male headers and one 1×7-pin breakaway 0.1″ male header are included with the P-Star 45K50 Mini. These header pins can be soldered in to use the board with perfboards, breadboards, or 0.1″ female connectors.

P-Star 45K50 Mini SV with included optional headers.

P-Star 45K50 Mini SV on a breadboard, shown with a vertical 5-pin ICSP programming header installed.

The P-Star family

The P-Star 45K50 Mini is part of our P-Star family. The table below lists the members of the family and shows the key differences between them.

P-Star 25K50 Micro (top) and P-Star 45K50 Mini SV (bottom).

P-Star 25K50 Micro P-Star 45K50 Mini SV
Microcontroller: PIC18F25K50 PIC18F45K50
User I/O lines: 19 30
Analog inputs: 14 25
Reset button:   yes
Operating voltage: 5.5 V to 15 V 5 V to 36 V
Regulator type: linear switching step-down
Regulated current:(1) 100 mA 500 mA
Auxiliary 3.3 V regulator:   yes
Dimensions: 1″ Ã— 0.6″ 2.0″ Ã— 0.7″
Weight:(2) 1.3 g 3.5 g

1 These values are rough approximations for comparison purposes. Available current depends on input voltage, current consumed by the board, ambient conditions, and regulator topology.

2 Without included optional headers.


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