Ebyte E48-900T20S UART 855～925MHz 20dBm 3.5km Wireless Data Transmission Module

Ebyte E48-900T20S UART 855～925MHz 20dBm 3.5km Wireless Data Transmission Module

E48-900T20S is a domestic cost-effective wireless data transmission module launched by Chengdu Ebyte. It has 4 working modes. It has a variety of transmission methods and can be applied to various IoT application scenarios. The wireless module works in the 855~925MHz frequency band, has TTL level output, supports a maximum transmit power of 20dBm, and is compatible with 3.3V IO port voltage.

It supports functions such as air wake-up, wireless configuration, relay networking, communication keys, etc. At the same time, the module has a data encryption function. Through strict encryption and decryption algorithms, it ensures data security and improves communication reliability and transmission efficiency.

Datasheet

Features

• The measured communication distance can reach 3.5 km 
• The maximum transmit power is 100mW, multi-level software adjustable
• Support global license-free ISM 900 MHz frequency band
• Support data transmission rate from 2.4 Kbps to 500Kbps
• Support frequency hopping transceiver and automatic re-transmission function to ensure communication stability
• Support LBT function, which monitors the channel environment noise before sending, which can greatly improve the communication success rate of the module in harsh environments
• Support users to set their own communication keys, which cannot be read, greatly improving the confidentiality of user data
• Support relay networking, multi-level relay is suitable for ultra-long distance communication
• Support RSSI signal strength indication function, which is used to evaluate signal quality and improve communication networks
• Support wireless parameter configuration, sends command data packets wirelessly, and remotely configures or reads wireless module parameters
• Support wake-up over the air, an ultra-low power consumption function, suitable for battery-powered applications
• Support fixed-point transmission, broadcast transmission, and channel monitoring 
• Support deep sleep, the power consumption of the whole machine in this mode is about 3.5uA; supports GFSK modulation method
• Support DC 2.7V~5.5V power supply
• Industrial-grade standard design, support long-term use at -40 ~ 85 ℃
• Support stamp holes and IPEX antenna interfaces, users can choose to use them according to their own needs

Specifications

• Working frequency : 855～925MHz
• Transmit power : 20±1dBm
• blocking power : 0～10.0dBm
• Receive sensitivity : -120 dBm
• Measured distance : 3.5km
• Air speed : 2.4～500kbps

Electrical parameters

• Operating Voltage : 2.7V~5.5V IN
• Communication level : 3.3IN
• Emission current : 110mA
• receive current : 12mA @5V power supply
• Sleep current : 3.5uA
• Operating temperature : -40  ~  +85℃

Applications

• Wearable devices
• Smart home and industrial sensors, etc.
• Security systems, positioning systems
• Wireless remote control, drone
• Wireless game remote
• Healthcare products
• Automotive industry