E220-400T22S_LLCC68_LoRa_Module

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E220-400T22S LLCC68 LoRa Wireless RF Module 22dBm ISM band 433MHz LoRa Spread Spectrum SMD IPEX Antenna Anti-interference

[Chip solution]：LLCC68

[Frequency]：410.125~493.125MHz

[Transmitter power]：22dBm

[Communication diatance]：5km

[Size]：16*26mm

[Product weight]：2.2g±0.1g

[Introduction]：E220-400T22S is a new generation of LoRa wireless serial port module (UART), based on Semtech's original LLCC68 chip design. It has a variety of transmission methods, works in the (410.125～493.125MHz) frequency band (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage

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Serial Number	pin	Pin direction	Remark
1	NC		Empty foot
2	GND	-	Module ground wire
3	NC	-	Empty foot
4	NC	-	Empty foot
5	NC	-	Empty foot
6	NC	-	Empty foot
7	NC	-	Empty foot
8	GND	-	Module ground wire
11	GND	-	Module ground wire
12	ON	Output	Antenna interface (high-frequency signal output, 50 ohm characteristic impedance)
13	GND	-	Module ground wire
14	GND	-	Module ground wire
15	GND	-	Module ground wire
16	GND	-	Module ground wire
19	GND	-	Module ground wire
20	M0	(very weak pull-up)	In conjunction with M1, it determines the module's four operating modes (it cannot be left floating; if not in use, it can be grounded).
21	M1	(very weak pull-up)	In conjunction with M0, it determines the module's four operating modes (it cannot be left floating; if not in use, it can be grounded).
22	RXD	input	TTL serial port , connected to the external TXD output pin;
23	TXD	Output	TTL serial port output, connected to the external RXD pin;
24	TO	Output	Used to indicate the module's working status; When the user wakes up the external MCU, it outputs a low level during the power-on self-test initialization period; (this level can be left floating).
25	VCC	-	Module power supply positive reference, voltage range: 2.3～5.5V DC
26	GND	-	Module ground wire

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