SPECIFICATIONS

400T20S 400T20D 433 470MHz RF Wifi Wireless Module: UART 20dBm SX1278 LoRa Radio Frequency GFSK Data Transmitter Receiver Board

Application: Computer

Brand Name: EC Buying

Condition: New

Dissipation Power: low

High-concerned chemical: none

Operating Temperature: normal

Origin: Mainland China

Package: Module

Smart Electronics Experiment: Switch And Sensor For Arduino STM32

Supply Voltage: DC 2.6-5.5V 2.6-3.6V 20dBm

Type: Logic ICs

is_customized: Yes

Limit Parameters:

Main Parameters	Value		Remarks
Main Parameters	Min.	Max	Remarks
Power supply（V）	0	5.5	Voltage over 5.5V will cause permanentdamage to module
Blocking power（dBm）	-	10	Chances of burn is slim when modulesare used in short distance
Operating temperature（℃）	-40	+85	-

Operating parameter:

Main Parameters	Value			Remarks
Main Parameters	Min.	Typical	Max	Remarks
Operating voltage（V）	2.6	5.0	5.5	-
Communication level（V）	-	3.3	-	For 5V TTL, it may be at risk of burning down
Operating temperature（℃）	-40	-	80	Industrial design
Operating frequency（MHz）	410	433	510	Support ISM band
TX Current(mA)	-	91	-	Instant power consumption
RX current（mA）	-	12	-	-
Sleep current（μA）	-	0.7	-	Software is shut down
Max Tx power（dBm）	-	-	20.0	-
Receiving sensitivity（dBm）	-116	-118	-119	Air data rate is1.2kbps
Air data rate（bps）	1.2k	2.4k	200k	Controlled via user’s programming

Main parameter	Description	Remarks
Distance for reference	1000m	Test condition：clear and open area, antenna gain:5dBi,antenna height:2.5m，air data rate:1.2kbps
FIFO	54 Byte	Maximum capacity of single transmission
Cache capacity	500 Byte	-
Modulation	GFSK	-
Communication interface	UART serial port	-
Package	SMD	-
Connector	1.27mm	-
Size	26*16mm	-
Antenna	IPX1/Stamp hole	50 ohm impedance