Micro: IO-BOX is a micro:bit multifunctional expansion board with on-board Li-ion battery power, delicate appearance and easy to use. We integrated numerous functions on the 6cm×6cm board such as 2-way driver motor, 9-way IO port, 2-way I2C port, 1-way serial port, 1-way buzzer, 4-way RGB LED, Li-ion battery box, charge circuit, emergency power interface, etc. There is an outer protective cover for the product to make it more durable and indestructible.

 

In order to provide a stable power supply, there is a high-cost boost-buck power management solution. A motor’s instantaneous current can reach up to 1A at its starting instant, which is a big challenge for power supply. So DF Robot specially carried out a strict test on our product: they made two TT motors which keep rotating forward and reversely continuously, and even in such a condition, the board and motor can still work about 1.5 hours until running out of the battery. In normal operation, the battery can work for over 6 hours.

• Supported Battery specification: CR123A Li-ion battery 1000mA(Battery of this type is on sale)
• Average Continuous Usage Time: 6h (may differ)
• External Power Supply: 3.7V~5V( Auxiliary 3 AA battery holder is on sale)
• Charging Interface: micro USB 5V  Support computer USB charging and cell phone charger
• Supported Motor Voltage: 3V~6V

• Supply Voltage: 4.5-5.5V
• Battery Type: CR123A 3.6V  Rechargeable Li-ion Battery
• Power Switch: 1
• Charging Current: 350mA
• Charging Time: 2.5h
• Digital Output Voltage: 0V/3.3V
• Analog Input Voltage: 0~3.3V DC
• On-board Buzzer: 1-way(PO)
• Buzzer Switch: 1
• On-board RGB: 4 WS2812B（P15）
• Motor Interface: 2-way(IIC)
• Micro: bit Interface: 9-way (P0, P1, P2, P8, P12, P13, P14, P15, P16)
• IIC Interface: 2-way
• UART Interface: 1-way
• Dimension: 61×61mm/2.40×2.40”

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