Ebyte E28-2G4M20SX 2.4GHz SX1281 Lora Wireless SPI RF Module BLE 20dbm High Speed Low Power PA+LNA FLRC IPEX Antenna

E28-2G4M20SX SX1281 2.4GHz LoRa SPREAD SPECTRUM 2.4GHz RF transceiver module [Chip solution]：SX1281 [Operating frequency]： 2.4GHz [Communication interface]：SPI [Communication distance]：6km [Introduction]：E28-2G4M20XX is a 2.4GHz RF transceiver module designed and produced by Ebyte, with a transmission power of 100mW and a long communication distance; it has extremely low current consumption in low-power mode. This LoRa module is a small-volume SMD type (pin spacing 1.27mm), with a high-performance PCB onboard antenna, and uses a 52MHz industrial-grade high-precision low-temperature drift active crystal oscillator; to ensure its industrial characteristics and its stable performance. It can be used for smart homes, security systems, positioning tracking, wearable devices, smart bracelets and health management, etc. It supports RSSI and can achieve in-depth secondary development as needed. Main parameters Performance Remark Minimum value Maximum value Supply voltage (V) 0 3.6 Exceeding 3.6V will permanently burn the module Blocking power (dBm) - 10 Less likely to be burned if used at close range Working temperature (℃) -40 85 Industrial grade Main parameters Minimum value Typical value Maximum value Remark Working voltage (V) 1.8 3.3 3.6 ≥3.3V guarantees output power Communication level (V) - 3.3 - Using 5V TTL risks burning out Working temperature (℃) -40 - 85 Industrial grade design Working frequency band (MHz) 2400 2430 2500 Support ISM frequency band Power consumption Emission current (mA) - 140 - Instantaneous power consumption Receive current (mA) - 10 - - Sleep current (μA) - 2 - Software shutdown Maximum transmit power (dBm) 19 20 twenty one See section 4.2 for details Receiving sensitivity (dBm) -130 -131 -132 LoRa receiver sensitivity with CR=4/5 and high sensitivity mode enabled 1 SF12,BW=203kHz Communication speed rate LoRa（bps） 0.595k - 253.9k User programmable customization FLRC（bps） 260k - 1.3M User programmable customization GFSK（bps） 125k - 2M User programmable customization Main parameters Parameter Remark reference distance 6000m Sunny and open space, antenna gain 5dBi, antenna height 2.5 meters, air rate 1kbps FIFO 256Byte Maximum length of a single send Crystal frequency 52MHz ±10ppm/11pF Modulation method LoRa(recommended) GFSK，FLRC，LoRa Packaging method SMD type - Interface mode 1.27mm - Communication interface SPI 0～10Mbps Overall dimensions 20*15mm - Antenna interface IPEX -