Product description: Micro: IoT based expansion board for BBC micro:bit IoT - ElecFreaks EF03426
IoT based expansionboard for the BBC micro:bit. It uses the ESP8266 WiFi expansion board and an SPI / I2C serial port to communicate with the micro:bit. The IO ports have micro:bit GVS extensions so that additional components (such as LEDs and servos) can be connected to them. The board has a built-in buzzer module and RTC clock, which allows accurate timing without the need for a power supply. The technology used allows direct connection of OLED, BME280 and IIC.
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The manufacturer provides a user's guide which includes, among other things, instructions for coding the module and a diagram of how to run the various components of the board. |
Expansion board for micro:bit.
Description of individual pins of the module.
Pins of the expansion board
Detailed pinout description can be found on manufacturer website and in user guide.
Technical specification
- Power supply DC: USB 5 V
- Maximum current: 800 mA
- Interface: I2C / SPI
- Direct connection: OLED, BME280 and IIC
- I2C interface ports: 19, 20
- SPI interface ports: 14, 15
- WiFi module: ESP 8266
- RTC module: DS1307 RTC
- Battery type: CR1220
- Buzzer: passive
- PCB thickness: 1.5 mm
- Hole diameter: 2.4 mm
- Dimensions: 71 x 63 x 23 mm
- Weight: 30 g
