MK04 series module is a highly integrated BLE 4.2 module with NFC function, it was designed for high data rate, short-range wireless communication in the 2.4GHz ISM band. The module is designed based on Nordic Semiconductor nRF52832 radio Transceiver IC, has a 32 bit ARM Cortex-M4 CPU, flash memory and analog and digital peripherals. MK04 provides a low power and ultra-low cost BLE and proprietary protocols for wireless transmission applications.

Key Features

32 bits ARM Cortextm-M4 @ 16MHz

2.4GHz multi-protocol transceiver

-96 dBm sensitivity in Bluetooth low energy mode

64kB RAM

512kB Flash

5.3 mA peak current in TX (0 dBm)

5.4 mA peak current in RX

29 configurable I/O pins

Programmable peripheral interconnect (PPI)

AES HW encryption with EasyDMA


Temperature sensor

Up to 3x SPI master/slave with EasyDMA

Up to 2x I2C compatible 2-Wire master/slave

I2S with EasyDMA


3x 4-channel pulse width modulator (PWM) units with EasyDMA

Digital microphone interface (PDM)

5x 32-bit timers with counter mode

Quadrature decoder (QDEC)

12-bit, 200 ksps ADC - 8 configurable channels with programmable gain

64 level comparator

Single-pin antenna interface

NFC-A tag

Tx Power -20 to +4 dBm in 4 dB steps

Supply voltage range : 1.7V to 3.6V

Dimension :25x17x1.0mm


Internet of Things (IoT)

Home automation

Sensor networks
Building automation
Personal area networks

Health/fitness sensor and monitor devices

Medical devices
Key fobs and wrist watches

Interactive entertainment devices

Remote controls
Gaming controllers

A4WP wireless chargers and devices

Remote control toys

Computer peripherals and I/O devices

Multi-touch trackpad