Name: DFRobot micro: IO-BOX Expansion Board with On-board Li-ion Battery Power MBT0005
Brand: DFRobot
SKU: 62f513d9e5e34b0011ed7db3
Price: 105.0 HKD
Availability: InStock

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DFRobot micro: IO-BOX Expansion Board with On-board Li-ion Battery Power MBT0005

DFRobot micro: IO-BOX Expansion Board is a micro:bit multifunctional expansion board with on-board Li-ion battery power, delicate appearance and easy to use.

HK$110.00

HK$105.00

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Introduction

產品介紹

DFRobot Micro:IO-BOX Expansion Board (MBT0005) 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 (not include battery), charge circuit, emergency power interface, etc.

We design an outer protective cover for the product to make it more durable and indestructible. Besides, we also paid close attention to the safety of using the product, especially when most users are children. On the market, currently, some manufacturers adopt 18650 battery for their products. However, this kind of battery has explosion threats to people due to its high capacity and large size. Therefore, after a long-term testing, we selected CR123A 3.6V lithium rechargeable battery of1000mA. This kind of battery features small size, high capacity and high safety. What’s more, we set short circuit and reverse connection protection for it to further improve the safety in using Li-ion Battery.

In order to provide a stable power supply, we employ a high-cost boost-buck power management solution. As we know, a motor’s instantaneous current can reach up to 1A at its starting instant, which is a big challenge for power supply. So we specially carried out a strict test on our product: we make two TT motors 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.

MBT0005 Specifications

Supply Voltage Digital Output Voltage Analog Input Voltage	4.5-5.5V 0V/3.3V 0~3.3V DC
Battery Type	CR123A 3.6V Rechargeable Li-ion Battery
Charging Current Charging Time	350mA 2.5h
Motor Interface Micro: bit Interface I2C Interface UART Interface	2-way(I2C) 9-way (P0, P1, P2, P8, P12, P13, P14, P15, P16) 2-way 1-way
Dimension	61×61mm