Ceramic antenna Bluetooth 4.2 low energy module

As one of the mainstream wireless communication methods, the Bluetooth BLE module plays a vital role in the development of the Internet of Things. Its low energy consumption, high security and self-organizing characteristics make it a portable device without any doubt. Or an excellent replacement scheme for short-distance cable communication between devices. Therefore, the Bluetooth BLE module is widely used in various home appliances, instruments, meters, vehicle, industrial control, medical, health care, consumer electronics and other electronic products. It can communicate directly with the MCU for transparent transmission of data, or it can directly adopt its own single-chip method instead of the external MCU.

WJ-M404C Bluetooth low energy module (single mode) In normal cases, data can be transparently transmitted through the UART/SPI external MCU;

WJ-M404C is ultra-small size and come with programmable ARM-Cortex-M3 processor (80KB available application code space) and rich hardware interface which can be used for secondary development and embedded in complete Application. We provide the corresponding development kit

Features
• If the mobile phone APP and the Bluetooth slave need to transmit large packets of data, the mobile phone Bluetooth must support BLE4.2 or above.

• Support for Bluetooth slave roles and Bluetooth host roles based on the BLE 4.2 protocol

• Bluetooth slave version supports OAD upgrade

• Bluetooth host version supports SBL upgrade

• The slave version supports both single-link and multi-link versions.

• Serial packet length, single link version supports up to 248Byte, multi-link version supports up to 20Byte

• High-speed two-way transparent transmission, the fastest two-way up to 12KByte/s (single link big packet transmission)

• Single link version default 20ms connection interval, fast connection

• User interface uses universal serial port design, full duplex bidirectional communication, baud rate range 9600bps ~ 256000bps (default)

• Supports bridge mode (serial port pass-through) or direct drive mode (no additional CPU required); direct drive mode supports SPI/UART interface

• Support SPI/UART instruction software reset module to get MAC address

• Support SPI/UART commands to adjust Bluetooth connection interval and control different forwarding rates

• Support SPI/UART command to adjust transmit power, modify broadcast interval/connection timeout time, modify serial baud rate, modify module name, all will be saved after power down

• Support mobile device APP/SPI/UART Modify module name, save power, save serial port baud rate, product identification code, custom broadcast content, broadcast cycle, save power

• APP/SPI/UART can operate all IO external expansion

• Support connection status, broadcast status prompt pin / normal IO flexible configuration

• Up to 24 bidirectional programmable IOs with external interrupts for input detection and full low power operation. (lighting control, remote control toys, and other input and output switch applications)

• Very low power standby mode

• Support APP/UART/SPI setting TX power/RX gain, adjust different transmission sensitivity for application distance adjustment

• Supports APP/UART/SPI free on/off broadcast for true deep sleep

Wireless Features:

Hardware Specifications:

Software Specifications:

Power consumption specifications:

Application Industry

Fitness: Sports Bracelet, Pedometer, Sports Metering (Running, Bicycle, Golf)
Smart home category: socket modification, remote control switch, dimming color lighting, door lock, curtain, thermometer and hygrometer, smart scale, environmental smoke, detector, pet supervision
Health care: medical detection / tracking (heart rate, blood pressure, blood oxygen, pulse, body temperature)
Infant care: real-time body temperature detection, smart crib, anti-lost
Toys: interactive remote control toys, robots, aircraft, toy cars, anti-lost devices
Automotive Electronics: tire pressure detection, auto lock, parking space record, electric car alarm, data acquisition and monitoring
Beacons, electronic tags, asset management, cold chain logistics, industrial control, power tools

Pin Definition