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SELECTION GUIDE micro:bit

DFRobot micro:bit Expansion Board Selection Guide

DFRobot Dec 25 2018 63

Introduction 

micro:bit is a pocket-sized microcontroller designed for kids and beginners learning how to program, letting them easily bring ideas into DIY digital games, interactive projects and roboticsHowever, on-board I/O rings and crocodile clips sometimes are not handy and safe enough to connect peripherals. To explore more possibilities with micro:bit, we have designed the micro:bit Expansion Boards.

Product Image


Product NameMicro:bit - an Educational & Creative Tool for Kids
Micro:Mate - A Mini Expansion Board for micro:bit (Gravity Compatible)
micro:bit Expansion Board for Boson (Gravity Compatible)
SKUDFR0497
DFR0518
DFR0521
Operating Voltage
3.5~5.5V
3.3V/5V
3.3V
Power supply 
DC2.1/Terminals
USB
USB
External supply voltage
3.5~5.5V
3.3V/5V
3.3V/5V
Digital ports (IO/PWM)17/8
3 3
Analog ports (input/output)
P0、P1、P2
3 3
UART
x x x
I2C2 x x
SPIx x x
Interrupt pin (quantity)xx x
Interface Type
Gravity
Gravity
Gravity
3.5mm headphone port
x

Dimension63 x 58 mm
68.5×53.3 mm
80×70 mm
Mounting hole 50*55
- -
Weight (g)
64 23 48
Price$14.9$5.9
$7.9
Drive the servo


x
ScenariosMany motors and sensors needed
Suitable for small WorksInitial Stage
Key Features

17 io ports with 2 i2c interfaces

Can drive Quad DC Motor Driver

IO port expands 6 and the pin replaces the edge connector slot

Anti-reverse pad on the back, which protects the control board and prevents micro-reverse
Drive high current equipment, such as steering gear, components connected to 8 12 16

3-Pin fool-proof connector x 6

Edge Connector

REVIEW