Chengdu Ebyte Electronic Technology Co., Ltd.
E73-2G4M04S1FX User manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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1.Overview
1.1 Introduction
E73-2G4M04S1FX is a small volume chip Bluetooth wireless module
independently developed based on nrf52811 chip of Nordic of Norway. It
adopts 32mhz industrial crystal oscillator to ensure its industrial
characteristics and stable performance.
NRF52811 comes with high-performance ARM CORTEX-M4 core,
IEEE 802.15.4-2006 RF transceiver and protocol stack of BLE 5.1.
Especially the direction finding function, pushing Bluetooth positioning to a
new height. It has rich peripheral resources such as UART, I2C, SPI, ADC,
DMA, PWM, etc. The module leads out almost all IO ports. Please check the pin definition for details, so as to facilitate
users to carry out multi-directional development. The module can be connected with other antennas through IPEX.
Because the module is a pure hardware SOC module, it can be used only after the user programs it.
1.2 Features
Support BLE 5.1, all functions of bluetooth 5 and IEEE 802.15.4-2006;
Maximum transmission power is 2.5mW, is is multi-level adjustable by software;
Built-in 32.768 kHz clock crystal oscillator;
Support for the global license-free ISM 2.4GHz band;
Built in Cortex-M4 core processor with high performance and low power consumption;
Rich resources, 192KB FLASH, 24KB RAM;
Support 1.8V~3.6V power supply, more than 3.3V power supply can guarantee the best performance;
Industrial grade standard design, can work under -40 ~ 85 °C for a long time;
Under ideal conditions, the communication distance can reach 100m.
1.3 Application
Smart home and industrial sensors
；
Security system and positioning system;
Wireless remote control, UAV
；
Wireless Game Remote Controller
；
Health care products
；
Wireless voice, wireless headset
；
Automotive industry applications.
