What is it?

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.

What makes it special?

Main Features Microprocessor: ESP32(dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276 (For EU868, US915, AU915, AS923)

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).

Specification

Master Chip ESP32 (240MHz Tensilica LX6 dual-core+1 ULP, 600 DMIPS)

LoRa Node Chip SX1276

USB to Serial Chip CP2102

Frequency 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 22GPIO;3UART;2I2C;2SPI;

Memory 520KB internal SRAM; 8MB Spi Flash

Interface Micro USB x 1; LoRa ANT(IPEX1.0);2182.54 Header Pin

Battery 3.7V lithium (SH1.25 x 2 socket)

Operating Temperature -20 ~ 70 ℃

Dimensions 51 * 25.5* 10.6 mm