WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation(TM), it’s a highly integrated product based on ESP32 + SX127x, it has Wi-Fi, BLE, LoRa functions, Li-Po battery management system and 0.96 OLED. It’s the best choice for smart cities, smart farms, smart home, and IoT makers.
Main Features
- Microprocessor: ESP32(dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278.
- Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures.
- Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching).
- Onboard 0.96-inch 128*64 dot matrix OLED display can be used to display debugging information, battery power, and other information.
- Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal spring antenna, reserved IPEX (U.FL) interface for LoRa use.
- Integrated CP2102 USB to serial port chip, convenient for program downloading, and debugging information printing.
- Support the Arduino development environment.
- With good RF circuit design and basic low-power design(sleep current ≤ 800uA).
Specifications
| Parameters | Description |
|---|---|
| Master Chip | ESP32 (240MHz Tensilica LX6 dual-core+1 ULP, 600 DMIPS) |
| LoRa Node Chip | SX1276/SX1278 |
| USB to Serial Chip | CP2102 |
| Frequency | 470~510MHz, 863~923MHz |
| Max. TX Power | 19±1dBm |
| Receiving sensitivity | -135dBm |
| Wi-Fi | 802.11 b/g/n, up to 150Mbps |
| Bluetooth | Bluetooth V4.2 BR/EDR and Bluetooth LE specification |
| Hardware Resource | 22*GPIO; 3*UART; 2*I2C; 2*SPI; |
| Memory | 520KB internal SRAM; 8MB Spi Flash |
| Interface | Micro USB x 1; LoRa ANT(IPEX1.0); 2*18*2.54 Header Pin |
| Battery | 3.7V lithium (SH1.25 x 2 socket) |
| Operating Temperature | -20 ~ 70 ℃ |
| Dimensions | 51 * 25.5* 10.6 mm |
Description
Pin Map
Docs & Resource
- [Resource] — Heltec ESP (ESP32&ESP8266) framework (Include LoRaWAN library)
- [Attachment] — Heltec ESP32 special library
- [Resource] — Hardware Update Logs
- [Attachment] — Schematic diagram
- [Attachment] — Datasheet
- [Resource] — User manual and related documents
- [Resource] — Downloadable Resources
Packing list
The default packing list without selecting any accessories is as follows:
| Item | Quantity |
|---|---|
| WiFi LoRa 32 (V2) | x1 |
| LoRa Antenna | x1 |
| SH1.25×2 Battery Connector | x1 |