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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.
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 | |
@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. |
