EBYTE OEM E48-433M20S Wireless module Small size low power consumption 433MHz RF transceiver CMT2310A chip

Practical Application Scenarios

1. North American Agricultural Livestock Wireless Monitoring Nodes

Equip livestock ear tag sensors with E48-433M20S paired with STM8 low-power MCUs, match E220 LoRa gateway to collect animal location and body temperature data. The 3500m long-distance 433MHz signal covers large grazing pastures, ultra-low 3.5uA sleep current extends small button battery service life for more than 12 months, FEC error correction ensures stable data transmission under complex farm terrain occlusion. Dual antenna options support mini ear tag PCB integration.

2. European Community Smart Water Meter Wireless Collection Terminal

Integrate this SPI RF chip module into battery-powered water meter PCBs, cooperate with E870-S LoRaWAN gateway to upload meter pulse data to property cloud servers. Tiny 20*14mm size fits compact meter internal layout, adjustable transmit power reduces signal interference between dense meter clusters, and it can directly replace old CC1101 modules without redesigning meter hardware circuits.

3. Southeast Asian Factory Safety Wireless Alarm Sensors

Install E48-433M20S on smoke and temperature detectors, connect to industrial PLC host via EID041 RS485 acquisition modules. 433MHz strong wall penetration transmits alarm signals across multi-story workshop buildings, industrial wide temperature range adapts high-temperature production workshops, three modulation modes match different alarm data packet lengths to balance speed and anti-interference performance.

4. Australia Outdoor Solar Soil Sensor Wireless Node

Collocate with low-power soil humidity MCU boards for field agricultural monitoring. Wide 2.7-5.5V voltage adapts small solar panel power supply, stamp-hole antenna design saves space for compact sensor housings, long transmission distance reduces gateway deployment quantity and cuts farm IoT overall construction cost.

5. Global Portable Medical Vital Sign Detector Wireless Link

Build short-to-medium distance wireless data links for portable blood pressure and temperature monitors. Small lightweight SMD structure fits wearable medical device miniaturization design, multi-level transmit power adjustment avoids RF signal interference to hospital medical instruments, SPI interface easily connects all mainstream low-power medical MCUs.

FAQ Section

1. Does E48-433M20S have built-in MCU, or must an external microcontroller be matched?

This is a pure hardware SPI RF chip module without onboard processor. Users must deploy external MCU such as STM8, STM32 or AVR to send SPI register configuration commands and complete data transceiving logic; it cannot work independently without master control chip.

2. Can E48-433M20S directly replace CC1101 and Si4432 modules on existing PCB?

Yes, the pin definition and RF working logic of E48-433M20S are fully compatible with CC1101, Si4432, Si4438. Engineers can directly paste this module on original PCB without modifying hardware wiring or re-layout, only minor MCU firmware adjustment is needed.

3. What is the function of the built-in FEC forward error correction algorithm of this RF module?

FEC algorithm automatically repairs partial damaged data packets under electromagnetic interference, effectively reduces packet loss rate in factory, farm and building occlusion environments, improves wireless communication stability without increasing transmit power and power consumption of battery equipment.

4. Can 5V MCU IO directly connect the SPI pin of E48-433M20S?

The module SPI interface is 3.3V electrical level. Direct connection with 5V single-chip IO will cause permanent chip burnout. Voltage divider resistors or level shift circuits must be added between 5V MCU and module pins.

5. What is the difference between stamp hole antenna and IPEX antenna version of the module?

Stamp hole pads integrate onboard micro antenna, suitable for ultra-small device integration with limited space; IPEX external antenna socket supports matching high-gain external antenna to reach the rated 3500m long transmission distance for outdoor wide-range monitoring projects.