LoRa SX1278 433MHz 0 - 3000m

This wireless transceiver is based on SX1278 from SEMTECH. It adopts LoRa spread spectrum technology, with this technology the transmitting distance and penetration ability of the module improved more than 1 times compared with traditional FSK. The module features FEC(forward error correction) algorithm, which ensure it's good anti-interference ability.


Input Voltage 2.3 - 5.5v
Communication Protocol UART, USART
Connector 7 pins (1mm * 7mm * 2.54mm)
Frequency Band 410 - 441MHz, 100KHz stepped frequency, Default: 433MHz
Operation Range 0 - 3000m (Clear & open area, maximum power)
antenna gain: 5dBi, height: > 2m, air data rate: 2.4kbps
Transmitting Power Maximum 20dBm (~100mw), 4 optional level (0 - 3) step by 3dB
Air Data Rate Default: 2.4kbps (Can be configured to 0.3, 1.2, 2.4, 4.8, 9.6, 19.2kbps)
Standby Current 2.0uA (Mode 3)
Transmitting Current 110mA @ 20dBm
Receiving Current 14.5mA (Mode 0 or 1), minimum 30uA (Mode 2 + 2s wake up time)
Communication Interface UART, 8N1, 8E1, 8O1, 8 kinds of UART baud rate, from 1200 to 115200bps
Driving Mode UART can be configured to push-pull/high pull, open-drain
Transmitting Length 512 bytes buffer, 58 bytes per package
Receiving Length 512 bytes buffer, 58 bytes per package
Address 65536 configurable address
(Easy for network, broadcast and fixed transmission)
RSSI Support Built-in intelligent processing
Sensitivity -130dBm @ 0.3kbps
RF Connector SMA-K
Operating Temperature -40°C to +85°C
Size 21mm * 36mm (Without antenna)

Operating Modes

Module Name M0 M1 Mode Setting Remarks
Mode 0 Normal 0 0 Transparent transmission is on The receiver must be in mode 0 or 1
Mode 1 Wake Up 1 0 Act as transmitter, can be used to
wake up the module in mode 2
The receiver can be in mode 0, 1, 2
Mode 2 Power Saving 0 1 Act as receiver, can be awakened
by the module in mode 1
Transmission is not allowed
Mode 3 Sleep 1 1 Parameter setting
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