E22-400T37S LoRa solution 433/470MHz 5W high power Relay networking LoRa wireless module

ZZteco

Main parameter		performance			Remark
		minimUm	Typical value	maximu m
Operating voltage (V).		4.5	5~12 V	15	≥4. 5V guarantees output power, and the lower the voltage, the greater the supply current
Communication level (V)		-	3.3	-	Using 5V levels may pose a risk of burnout, requiring level shifting circuitry
Operating temperature (°C).		-40	-	85	Industrial-grade design
Operating frequency band (MHz).		410.125	-	493.125	ISM bands are supported
power consumpion	5V transmit current (mA)	2900	3100	3300	Test at 50 ohms impedance, impedance mismatch may cause large current, use 5V power supply,please provide at least 3.5A output power supply
	12V transmit current (mA)	900	1100	1300	Test at 50 ohms impedance, impedance mismatch may cause large current, use 12V power supply, please provide at least 1.5A output power supply
	Receive current (mA).	11	43	15	-
	Sleep current (uA).	-	2	-	Software shutdown
Maximum transmit power(dBm).		36	37	38	-
Receive sensitivity (dBm).		-126	-128	-130	Air rate 2.4 kbps
Air rate (bps).		0.3k	2.4k	62.5k	User programmatic control
Reference distance		20km			Clear sky, Chengdu downtown, antenna gain 5dBi, antenna height 2.5 meters, airspeed 2.4K
Emission length		240 Byte			Subpackets can be sent by command setting 32/64/128/240 byte
Cache capacity		1000 Byte			-
Modulation mode		LoRa			A new generation of LoRa modulation technolog
Communication interface		UART serial port			TTL leve
Encapsulation method		SMD			SMD
Interface mode		2.54mm			-
Form factor		50*30.9mm			-
RF interfac		IPEX/stamp hole			The characteristic impedance is about 50 ohms

ZZteco

No.	Pin	Pin Direction	Remarks
1	GND	Input	Module ground wire
2	GND	Input	Module ground wire
3	VCC	Input	Module power positive reference, voltage range: 4.5 ~ 15 V DC
4	VCC	Input	Module power positive reference, voltage range: 4.5 ~ 15 V DC
5	RESET	Input	Module reset pin
6	AUX	Output	Used to indicate the working status of the module; the user wakes up the external MCU, and outputs a low level during the power-on self-test initialization period ; (can be left floating)
7	TXD	Output	TTL serial port output, connected to external RXD input pin;
8	RxD	Input	TTL serial port input, connected to external TXD output pin;
9	M1	Input (very weak pull-up)	Cooperate with M0 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used)
10	M0	Input (very weak pull-up)	Cooperate with M1 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used)
11	GND	Input	Module ground wire
12	GND	Input	Module ground wire
13	ANT	Output	Antenna interface (high frequency signal output, 50 ohm characteristic impedance)
14	GND	Input	Module ground wire
15	GND	Input	Module ground wire
16	GND	Input	Module ground wire
17	GND	Input	Module ground wire
18	GND	Input	Module ground wire
19	GND	Input	Module ground wire
20	STATE	Output	Module status indication output, if not used, just leave it unconnected
21	NC	-	No need to care, floating
22	NC	-	No need to care, floating
23	NC	-	No need to care, floating
24	NC	-	No need to care, floating
25	NC	-	No need to care, floating
26	NC	-	No need to care, floating
27	GND	Input	Module ground wire
28	NC	-	Floating
29	NC	-	The bottom of the module is reserved with matrix solder pads. Users need to ground them to assist in the heat dissipation of the module. For detailed dimensions, please refer to the PCB packaging diagram in the relevant download section of the Ebyte official website.

Note: The module must be connected to a 50 ohm impedance antenna when sending. No-load transmission may cause permanent damage to the module!!!