E28-2G4T27SX_SX12**_SPI-SOC-UART

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Ebyte Semtech SX1281 UART 7Km Range 2.4GHz 27dBm SMD 25*40.5mm CE RoHs FCC LoRa Wireless Transmitter RF Module

[IC]：SX1281

[Frequency]：2.4~2.5GHz

[Power]：27dBm

[Distance]：7km

[Size]：40.5*25mm

[Weight]：4.8±0.1g

[Introduction]：E28-2G4T27SX is an based on SEMTECH SX1281, it adopts transparent transmission and works at 2.4GHz band. It adopts LoRa, FLRC and GFSK modulations. It features SMD packing with both IPX and PCB antenna interfaces, compatible with 3.3V and 5V IO port voltage.

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Pin No.	Pin Name	Pin Direction	Function
1	GND	Ground	Ground
2	NC	-	cannot be floated, can be grounded if not used
3	NC	-	cannot be floated, can be grounded if not used
4	NC	-	cannot be floated, can be grounded if not used
5	NC	-	cannot be floated, can be grounded if not used
6	NC	-	cannot be floated, can be grounded if not used
7	NC	-	cannot be floated： can be grounded if not used
8	GND	Ground	Ground
9	NC	-	cannot be floated, can be grounded if not used
10	GND	Ground	Ground
11	VCC	-	Module power source positive reference. Voltage range: 2.5V ~ 5.5V DC
12	AUX	Output	Used to indicate the module operation status, when user wakes up the external MCU:it outputs low level during initialization after power on and self^check, can be configured as open-drain output or push-pull output, please refer to Parameter Configuration. (can be floated)
13	TXD	Output	TTL serial input, connected to external TXD output pin. Can be configured as open-drain or pull-up input： please refer to Parameter Configuration.
14	RXD	Output	TTL serial input, connected to external TXD output pin; It can be configured as drain open circuit or pull-up input. See parameter setting for details
15	Ml	Input	The common combination of M2, Ml and MO determines eight working modes of the module M2: Ml and MO determine eight working modes
16	MO	Input	M2, Ml and MO determine eight working modes
17	M2	Input	M2： Ml and MO determine eight working modes
18	GND	Ground	Ground
19	ANT	-	Antenna interface (50 Q characteristic impedance)
20	GND	Ground	Ground
21	GND	Ground	Ground
22	NC	-	cannot be floated, can be grounded if not used

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