For this tutorial we need to configure both modules. In order to do that we need to switch to AT Command Mode and here’s how we will do that. First we need connect the Bluetooth module to the Arduino as the ci
1. As indicated in the DK450's example schematics above, the 5V charger does not include the resistors(R1,R2, R3) and capacitor(C2) needed in a "normal circuit without DK450", since the DK450 is already optimized for 5V regulation. 2. As I'd like to 'adjust' the output voltage up...