Keyestudio Micro:bit TB6612 Driver Expansion Board With PCA9685PW And TB6612FNG Chip P2.0 Sensor RGB Lights
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Specifications
- Brand Name
- keyestudio
- Origin
- Mainland China
- High-concerned chemical
- None
- Condition
- New
- Type
- Voltage Regulator
- is_customized
- Yes
- Application
- Electric Toy
- Package
- TQFP
- Product number
- KS4018
- Input voltage
- DC7-12V
- Output voltage
- 5V
- Length, width and height
- 92*64*15mm
- Weight (bare board)
- 41.8g
Product Description
Description
The Micro:bit motor drive expansion board contains a PCA9685PW chip and a TB6612FNG chip and so on.
In order to save IO port resources, we use some pins of PCA9685PW chip to control the TB6612FNG motor chip.
The TB6612FNG motor chip is used to control the rotation direction and speed of two DC gear motors. It also integrates 2 RGB lights, 4 WS2812RGB lights, a buzzer with a P2.0 ultrasonic interface, a P2.0 IR sensor interface and a P2.0 tracking sensor interface.
The output voltages of TXS0108EPWR level conversion IC interface is 5V.
More information, please refer to Mini Smart Tortoise Car：
//wiki.keyestudio.com/KS4014(KS4024)_Keyestudio_Micro%EF%BC%9Abit_Mini_Smart_Tortoise_Car
Pros & Cons
Pros
- Integrates both PCA9685PW and TB6612FNG chips to streamline motor control and reduce IO port usage on the host device
- Supports a wide input voltage range of DC7-12V with a stable 5V output
- Compact, lightweight design (92*64*15mm, 41.8g bare board) for easy integration into projects
- Customizable per the product's listed customization options
Cons
- No specific PCB substrate material details are publicly available
- Exclusively designed for Micro:bit devices, limiting cross-compatibility to that platform only
- Does not include mounting screws or hardware for project installation
- Basic TQFP packaging may provide insufficient protection during long-distance transit
Common Questions
What materials is this Keyestudio Micro:bit expansion board constructed from?
The main construction is a printed circuit board (PCB) with integrated PCA9685PW and TB6612FNG IC chips, with no specific substrate material details publicly listed.
What are the physical dimensions of this expansion board?
The board has dimensions of 92*64*15mm, per the product specifications.
Is this expansion board compatible with the BBC Micro:bit device?
Yes, this is a dedicated Micro:bit driver expansion board designed for use with BBC Micro:bit devices to control motor functions and save IO port resources.
What is the primary usage of this expansion board?
It is used to control motor rotation direction and speed via the TB6612FNG chip, while the PCA9685PW chip helps save host device IO ports, making it ideal for electric toys and robotics projects.
What packaging is included for this expansion board?
This product is packaged in a TQFP package as listed in the product specifications.
Product information last updated on February 7, 2026