micro:Mate - Mini Expansion Board for micro:bit (Gravity Compatible)

micro:Mate is a tiny micro:bit I/O expansion board for learning electronics and building DIY projects. It expands 6 sets of 3-pin I/O interfaces, capable of connecting DFRobot Gravity series modules, servo motors, sensors and jumper wires.

Additionally, Pin 8, 12 and 16 support voltage switch between 3V-5V, allowing up to 5V 2A digital (PWM) output!

Micro:Mate is the same dimensions as the BBC micro:bit board. It connects to the micro:bit through spring-loaded contact pins ensuring an easy, compact and secure connection. The rubber bumpers and the 3.5mm audio jack on the back side ensure a stable connection and prevent reversed connections.

Note: micro:bit board is NOT included

• The mounting screws should be well tightened to ensure a secured connection
• micro:Mate only supports 3V (3.3V) analog input from Pin 0, 1, 2
• The Micro USB Power port on Micro:Mate cannot be used for data transmission
• Components with large power consumption should be connected to Pin 8, 12, 16 with a 5V power supply

Product Image				Micro:Mate - A Mini Expansion Board for micro:bit (Gravity Compatible)	micro:bit Expansion Board for Boson (Gravity Compatible)
SKU	DFR0497	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
I2C	2	x	x
SPI	x	x	x
Interrupt pin (quantity)	x	x	x
Interface Type	Gravity	Gravity	Gravity
3.5mm headphone port	x	√	√
Dimension	63 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
Scenarios	Many motors and sensors needed	Suitable for small Works	Initial 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   Compatible with sensor

Features

• Colour-coded Gravity 3-Pin interface, compatible with hundreds of plug&play electronic modules
• 3-way analog input; 6-way digital input/output (PWM); 3V/5V jumper switch; 3.5mm audio jack
• External Micro USB power port, up to 5V 2A power output
• Well-designed component lay-out and silk-screen. Reversed connection protection.

Specifications

• Interface: 6 x Gravity 3Pin
• Operating Voltage: 5V/3.3V
• Input Power: <10W
• Measuring Range: 0-3.3V (Analog), 0-5V (Digital):
• Dimension: 68.5 * 53.3mm/ 2.7 * 2.1 inches
• Weight: 22.8g

Resources

• Product Wiki
• More Documents

Shipping List

• 1x Micro:Mate Gravity Expansion Board
• 2x Brass nut M4 5 x 4

micro:bit not included