The RN4678 Click Board™ is based on Microchip's RN4678 Bluetooth® 4.2 dual mode module.
The RN4678 Click Board™ is designed to run on a 3.3V power supply. It communicates with the target microcontroller over I2C and UART interface, with additional functionality provided by the following pins on the mikroBUS™ line: AN, RST, CS, PWM, INT.