LoRa-STM32WLE5: SOC Wireless Module with Ultra-Small Size Built-in ARM Cortex-M4 Core

LoRa-STM32WLE5: SOC Wireless Module with Ultra-Small Size Built-in ARM Cortex-M4 Core

The LoRa-STM32WLE5 wireless module utilizes the STM32WLE5 chip from STMicroelectronics, specifically designed for ultra-long-range and ultra-low-power wireless solutions. This module employs LoRa® modulation and is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, with an operating frequency of up to 48 MHz,up to 256KB Flash, 64KB SRAM.The core includes a complete set of DSP instructions and an independent Memory Protection Unit (MPU), enhancing the security of applications. This module is extensively applicable in various sectors such as security systems, smart agriculture, industrial manufacturing, and smart homes.

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Parameters	Test condition	Min.	Typ.	Max	Unit
Voltage range		1.8	3.3	3.6	V
Operating Temperature		-40	25	85	℃
Maximum Input Signal			10		dBm
Current Consumption
Transmit Current	@3.3v		<120		mA
Receive Current			<8		mA
Sleep Current			<1		uA
RF Parameters
Frequency Range	@433MHz	400		460	MHz
	@470MHz	470		510	MHz
	@868MHz	850		890	MHz
	@915MHz	900		940	MHz
Transmit Power		20	21	22	dBm
Receive Sensitivity	@BW=125KHz,SF=12		-141		dBm
Frequency Error			10		ppm
Modulation Rate	@LoRa	0.018		62.5	kpbs
Modulation Rate	@FSK	0.6		300	kpbs

UHF band frequency:433/470MHz, 868/915MHz

Customizable frequency range from 150 to 960 MHz

Open area transmission distance of over 5000 meters

High receiver sensitivity up to -141dBm @ BW=125KHz, SF=12

Adjustable transmit power, up to 22dBm

Diverse interfaces: UART, SPI, I2C, GPIO, ADC

Sleep current：< 2uA

Receive current:< 10mA

Core processor: 32-bit Arm® Cortex®-M4 CPU

Security features: Supports 256-bit hardware encryption and PCROP read-write protection

Compact size with stamp hole design, facilitating secondary development by customers

Application

Smart Agriculture

Industrial Manufacturing

Smart Home

Remote Irrigation

Pin NO.	Pin name	I/O	Description
1	PB2	IO	Microcontroller I/O of the embedded chip; refer to the chip specification for functions.
2	PB12	IO	Microcontroller I/O of the embedded chip; refer to the chip specification for functions.
3	PA10	IO	Microcontroller I/O of the embedded chip; refer to the chip specification for functions.
4	PA11	IO	Microcontroller I/O of the embedded chip; refer to the chip specification for functions.
5	PA12	IO	Microcontroller I/O of the embedded chip; refer to the chip specification for functions.
6	PB6	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
7	PB4	I	Microcontroller I/O of the embedded chip, DEMO program defines the transmit button pin; pressing the button transmits data.
8	PB5	IO	Microcontroller I/O of the embedded chip, DEMO program defines the receive indicator pin; outputs high when data is received, otherwise low level.
9	PC13	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
10	SWDIO	IO	Microcontroller I/O of the embedded chip, programming interface.
11	SWCLK	I	Microcontroller I/O of the embedded chip, programming interface.
12	GND	-	Connect to the negative power supply.
13	VCC	-	Connect to the positive power supply.
14	PB3	IO	Microcontroller I/O of the embedded chip, DEMO program defines the transmit indicator pin; outputs high when transmitting, low when not transmitting.
15	PB7	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
16	PB8	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
17	PA0	IO	Microcontroller I/O of the embedded chip, DEMO program defines CS.
18	PA1	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
19	PA2	IO	Microcontroller I/O of the embedded chip, DEMO program defines TXD.
20	PA3	IO	Microcontroller I/O of the embedded chip, DEMO program defines RXD.
21	PA4	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
22	PA5	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
23	PA6	IO	Microcontroller I/O of the embedded chip, see chip specification book for specific functions.
24	NRST	I	Microcontroller I/O of the embedded chip, chip reset pin, active low.
25	GND	-	Connect to the negative power supply.
26	ANT		Connect to an external 50-ohm antenna.

LoRa-STM32WLE5: SOC Wireless Module with Ultra-Small Size Built-in ARM Cortex-M4 Core

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