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E22-400T22S-UART/SX1268 RF low power consumption
E22-400T22S-LoRa spread spectrum
E22-400T22S-UART serial port module
E22-400T22S-UART/SX1268 RF low power consumption
E22-400T22S-LoRa spread spectrum
E22-400T22S-UART serial port module
E22-400T22S LoRa spread spectrum UART/SX1268 RF low power consumption

[IC]：SX1268

[Frequency]：433MHz

[Power]：22dBm

[Size]：16*26mm

[Weight]：2.3±0.1g

[Introduction]：E22-400T22S is a wireless serial port module (UART) based on SEMTECH's SX1268 RF chip. It has multiple transmission modes, working in the 410.125MHz~493.125MHz, (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage.

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1
No. Name Direction Function
1 NRST Input Module reset pin, low reset
2 GND - Ground
3 NC - empty
4 NC - empty
5 NC - empty
6 NC - empty
7 NC - empty
8 GND - Ground
11 GND - Ground
12 ANT - Antenna
13 GND - Ground
14 GND - Ground
15 GND - Ground
16 GND - Ground
19 GND - Ground
20 M0 Input（weakpull-up） Work with M1 to decide 4 working modes of module (not suspended, if notused, could be grounded).
21 M1 Input（weakpull-up） Work with M0 to decide 4 working modes of module (not suspended, if notused, could be grounded).
22 RXD Input TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can beconfigured as open-drain or pull-up input.
23 TXD Output TTL UART outputs, connects to external RXD (MCU, PC) input pin. Can beconfigured as open-drain or push-pull output
24 AUX Output To indicate module ’ s working status & wakes up the external MCU. During theprocedure of self-check initialization, the pin outputs low level. Can beconfigured as push-pull output (suspending is allowed).
25 VCC - Power supply ：2.3~ 5.2V DC
26 GND - Ground