IOBit Expansion Board

IOBit(HKBC8009A)

IOBit is a basic expansion board designed for Micro:bit, as the name suggests, IOBit makes the all IO pins of the Micro:bit accessible.

Product Details

IOBit is a low cost expansion board for Micro:bit, it extends all the IO pins of the Micro:bit into Dupont connectors for easy access. IOBit is equipped with a buzzer and a 3.5mm audio jack for making sounds with Micro:bit. It also has a power port to supply 3V or 5V power to your hardware. The edge connectors of the Micro:bit is preserved for users familiar with using crcodile clips.

Special Features

  1. Converts the edge connectors pins of the Micro:bit to the standard 3 pin format. The singal, vcc and gnd pins can be distinguished by their colors.

  2. Equipped with short circuit protection and a resettable fuse, avoiding dangers such as short circuiting because of incorrect connection.

  3. Preserves the 3 pin edge connector of the Micro:bit, allowing users who are used to this system to use the board.

  4. 2 pin holes compatible with standard Lego Technic pins allow easy integration of the expansion board to your robotic projects.

Specifications

  • Dimensions: 56.8x44x12 mm

  • Power Input: USB 5V/Micro:bit Battery Box 3V

  • Power Output: 3.3V~5V, maximum 1A

Built-in devices

  • 3 Pin IO Edge Connector

  • Buzzer and toggle switch

  • 3.5mm audio jack

  • 5V USB Port

  • Power switch

5V Input

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  1. Plug in a USB power supply

  2. Press the power switch

  3. The power indicator will light up

  4. The 5V pins can now be used.

P0 Buzzer Toggle

Pin 0 is occupied by the buzzer, use this switch to toggle buzzer on or off

Demo Video

Precautions:

  1. Do not use high current devices, large servos or motors with this board, as this may result it damaging the Micro:bit.

  2. The 5V power supply is able to run multiple small servos as long as the total current is less than 1A.

  3. Using Pin 0 requires the buzzer to be switched off or the buzzer may buzz erratically.

  4. Since Pin 3 to Pin 11 are used by Micro:bit’s LED Matrix, the matrix needs to be turned off or it may light up erratically.

  5. Do not connect to a USB power with current exceeding 1A.

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