• Ships with a proprietary USB bootloader developed by Pololu for the P-Star (see
• Bootloader is usable from Windows, Linux, and Mac OS X with
[https://github.com/pololu/p-load]
• No external programmer required
• Compatible with standard Microchip compilers, development tools, and programmers
P-Star comparison table
P-Star 25K50 Micro P-Star 45K50 Mini SV
Microcontroller:
PIC18F25K50
PIC18F45K50
User I/O lines:
19
30
Analog inputs:
14
25
Reset button:
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:
Dimensions:
1″ × 0.6″
2.0″ × 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.
1.1. Supported operating systems
The Pololu USB Bootloader Utility (p-load), which is used to load programs onto the P-Star, works on
Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Linux, and macOS. The utility
does
not
work on Windows XP. The
[https://github.com/pololu/p-load]
is available, so it
should be possible to port it to more operating systems.
Pololu P-Star User’s Guide
© 2001–2019 Pololu Corporation
1. Overview
Page 3 of 46
