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Description
Characteristics
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Description
Summary
In order to meet the user’s requirements for Ultra-Low-Power and standard LoRaWAN protocol, we designed this product. On the basis of STM32L151CBU6MCU and SX1278 LoRa chip(433、470MHz), the low power current can reach to 6uA.
Main Features
- CE Certificate;
- Microprocessor: STM32L151CBU6 (Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash), with LoRa node chip SX1278 (433MHz ~ 510MHz);
- Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, and other protection measures;
- Onboard SH1.25-2 battery interface, integrated lithium battery interface, integrated battery management system (battery power detection, USB / battery power automatic switching);
- Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
- This product supports DFU mode download (need to cooperate with relevant download software).
- System resource：FLASH – 128K， RAM – 16K， EEPROM – 4K；
- User available resources: FLASH – 64K, RAM – 8K, EEPROM – 4K；
- Provide standard LoRaWAN protocol routines.
- With good RF circuit design and basic low-power design (sleep current ≤7uA), it is convenient for IoT application vendors to quickly verify LoRaWAN protocol easily.
Specifications
| Parameters | Description | Master Chip | STM32L151CBU6(Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3) |
|---|---|
| LoRa Chipset | SX1278 |
| Frequency | 470~510MHz, 863~928MHz |
| Max. TX Power | 19 ± 1dBm |
| Max. Receiving Sensitivity | -135dBm |
| Operating temperature | -20 ~ 70 ℃ |
| Dimensions | 56.3 x 25.5 x 7.8 mm |
| Interface | Micro USB x 1; LoRa Antenna interface(IPEX) x 1; 18 x 2.54 pin |
| Hardware Resource | UART x 3; SPI x 2; I2C x 2; 12-bits ADC input x 8; 12-bits DAC output x 2; GPIO x 23 |
| Memory | 128KB internal FLASH; 16KB internal SRAM |
| Battery | 3.7V Lithium(SH1.25 x 2 socket) |
| Low Power | Deep Sleep 6uA |
Description
Schematic Diagram
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FAQ
All HRI-485X series can upgrade firmware via OTA.
No, the WiFi function only used for OTA upgrade.
Docs & Resource
- [Resource] — Schematic diagram
- [Resource] —Downloadable Resource
Packing list
The default packing list without selecting any accessories is as follows:
| Item | Quantity |
|---|---|
| LoRa Kit 151 | x1 |
| Glue Rod Antenna | x1 |
| SH1.25 x 2 battery connector | x1 |
Characteristics
| Weight | 20 g |
|---|---|
| Dimensions | 8 × 3.5 × 1.6 cm |
| LoRa Band | 433MHz, 470~510MHz, 863~870MHz, 902~928MHz |
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LoRa Kit 151
What's this?
In order to meet the user’s requirements for Ultra-Low-Power and standard LoRaWAN protocol, we designed this product.
$13.50
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