IO expansion board for UNIHIKER K10

The DFRobot expansion board for the UNIHIKER K10 brings out all IO of the K10 with labels and powers servos and a HUSKYLENS directly from the 5 V input, bypassing the K10's voltage regulator. It also suits the micro:bit V1 and V2, with a passive buzzer on P0 and a separate Micro-USB input for it. Power is 5 V via USB-C or Micro-USB, for example from a charger or a power bank.

Recommended Accessories:

• UNIHIKER K10 AI Learning Board ESP32-S3 with Camera and Display
• DFRobot HUSKYLENS Easy-to-use AI Vision Camera Sensor

Features:

• 19 IO with 3.3 V, functions as on the UNIHIKER K10
• 4 multi-function ports C0 to C3 (3.3 V) for analog and digital sensors, also DS18B20, DHT11 and DHT22; only with the K10
• 4 servo ports S0 to S3 with 5 V directly from the input; only with the K10
• 3 × I2C: 2 × 3.3 V and 1 × 5 V powered directly from the input for the HUSKYLENS
• Passive buzzer on P0 with switch, only with the micro:bit
• Do not plug in USB-C and Micro-USB at the same time (DFRobot); main switch and red power LED
• Labelled connectors, mounting holes Ø 3.1 mm with 55 mm spacing

Application Examples:

• Robot arms and vehicles with servos on the UNIHIKER K10
• AI projects with HUSKYLENS
• Temperature and humidity measurement with DHT11 or DS18B20
• Teaching with micro:bit and UNIHIKER K10

Documentation:

• Wiki DFRobot DFR1231 with pinout and Mind+ example

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR1231
• Compatible: UNIHIKER K10, micro:bit V1 and V2
• Power: 5 V DC via USB-C or Micro-USB
• IO: 19 (3.3 V)
• Multi-function ports: 4 (C0 to C3, 3.3 V)
• Servo ports: 4 (S0 to S3, 5 V)
• I2C: 2 × 3.3 V, 1 × 5 V
• Buzzer: passive on P0, with switch
• Operation: main switch, red LED
• Mounting holes: Ø 3.1 mm, spacing 55 mm
• Dimensions: 66 × 50 × 12 mm (DFRobot)
• Weight: 35 g

Scope of Delivery:

• 1× IO expansion board for UNIHIKER K10