Chengdu Ebyte Electronic Technology Co., Ltd.
E19-433M20S2 User Manual
Copyright ©2012–2020
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
2
1. Overview
1.1 Brief introduction
E19-433M20S2 is a small-sized 433MHz LoRa
TM
SMD wireless module, based
on the original imported RF chip SX1278 from SEMTECH.
Due to the use of the imported SX1278 as the core of the module, with its stable
and reliable characteristics, it is favored by the majority of users. Compared with the
FSK
、
GFSK products, it has made great progress in receiving current, receiving
sensitivity, transmitting power, receiving rate range and anti-interference ability. The
module is aimed at smart home, wireless meter reading, scientific research and
medical, and medium and long distance wireless communication equipment. Since RF
performance and component selection are in accordance with industrial standards, and
the product has obtained FCC, CE, RoHS and other international authoritative
certification reports, users do not need to worry about its performance. High precision
32MHz crystal is used.
Since the module is a pure RF transceiver module, you need to use the MCU driver or a dedicated SPI debug tool.
1.2 Features
Communication distance tested is up to 5km
Maximum transmission power of 100mW, software multi-level adjustable
；
Support the global license-free ISM 833MH band
；
Support air date rate of 0.018kbps~37.5kbp in LoRa
TM
；
The maximum data transmission rate 300kpbs in FSK mode;
Support multiple modulation methods, LoRa
TM
/FSK/GFSK/MSK/GMSK/OOK
；
Large capacity FIFO, supports 256Byte data buffer
；
Support 2.5V~3.6V power supply, power supply over 3.3V can guarantee the best performance
；
Industrial grade standard design, support -40 ~ 85 °C for working over a long time
；
Stamp hole, good for secondary development and integration.
1.3 Application
Home security alarm and remote keyless entry
；
