In addition to the connectivity between the boards shown above, remember to use the respective USB cables to plug them into your LAPTOP or DESKTOP computer for programming. Please DO NOT directly connect these two to each other without a breakout board that provides voltage conversion. Micro:bit and Arduino use different operating voltages, 3.3V and 5V respectively. Let’s look at how to cable the micro:bit and the Arduino systems to each other to establish the I2C connectivity. NOTE: It is assumed that the audience is familiar with the Arduino IDE use and loading programs onto the Arduino.
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