Expansion Board V4.0 for micro:bit - expansion board
Pay in 30 days
Pay in 30 days
Description
micro:bit Expansion Board V4.0
The micro:bit Expansion Board V4.0 plugs into the BBC micro:bit's edge connector and routes its connections to clearly arranged, color-coded connectors. You can connect sensors, LEDs, buttons and actuators using ready-made cables instead of plugging individual wires into a breadboard or working with crocodile clips.
This saves time in class and prevents the most common beginner mistake: mixing up the signal, positive and ground wires. Each connector is labeled on the board with its pin assignment, making the setup easy to understand and check at any time.
Three connector types, clearly separated
The connectors are grouped by function using color coding. You can see at a glance which connector is intended for which module type:
- Yellow 4-pin ports for communication interfaces. These include two I2C ports on P19 and P20 as well as the SPI pins P13, P14 and P15.
- Blue 3-pin ports in the classic signal-plus-ground configuration for sensors and servos.
- Red 2-pin ports for simple two-wire devices such as LEDs, buttons or buzzers.
Highlights
- 17 connectors in three color-coded formats
- Two I2C ports on P19 and P20, powered either by 3.3 V or VCC
- SPI pins P13, P14 and P15 routed to connectors
- Analog-capable pins P0, P1 and P2 brought out multiple times
- 3.5 mm jack socket on P0 for headphones or powered speakers
- Micro USB socket for external power supply
- Jumper for selecting the VCC supply voltage between 5 V and 3.3 V
- Complete labeling of every pin assignment on the board
- Four mounting holes for mounting on base plates and in enclosures
Applications
- Computer science and technology lessons with the BBC micro:bit
- Quickly switching between experiments in classroom sets
- Sensor projects with I2C modules such as displays or environmental sensors
- First robotics and control projects
- Music and sound projects via the audio output on P0
- Prototyping without soldering or a breadboard
Connection overview according to the board labeling
| Slot | Quantity | Pinout |
|---|---|---|
| Yellow, 4-pin | 6 | P13 P14 GND 3v3 / P8 P12 GND VCC / P0 P1 P2 GND / P20 P19 GND 3v3 / P20 P19 GND VCC / VCC P15 P16 GND |
| Blue, 3-pin | 6 | 3v3 GND P0 / 3v3 GND P1 / 3v3 GND P2 / 3v3 GND P8 / 3v3 GND P16 / VCC GND P2 |
| Red, 2-pin | 5 | P0 GND / P1 GND / P2 GND / P5 GND / P11 GND |
| 3.5 mm audio jack | 1 | Audio output on P0 |
| Micro-USB socket | 1 | Power supply |
| Jumper | 1 | VCC voltage selection: 5 V or 3.3 V |
On the micro:bit, P19 and P20 are the I2C lines, while P13, P14 and P15 are the SPI lines. P0, P1 and P2 can be read as analog inputs.
Technical data
| Feature | Value |
|---|---|
| Model designation on the board | LY-Mbit-E2 V1.0 |
| Connection to the controller | Edge connector for BBC micro:bit |
| Compatibility | BBC micro:bit V1 and V2 |
| Power supply | Micro-USB socket |
| VCC voltage selection | Jumper, 5 V or 3.3 V |
| Plug-in connectors | 6x 4-pin, 6x 3-pin, 5x 2-pin |
| Audio output | 3.5 mm audio jack connected to P0 |
| Dimensions (L x W x H) | 60 x 60 x 14 mm |
| Mounting | 4 mounting holes |
| Programming | Microsoft MakeCode and MicroPython via the micro:bit |