Heltec WiFi LoRa ESP32 V3 Development Board – SX1262 (433–510MHz), BLE 5.0, 0.96″ OLED for IoT Projects

Description

• Weight 35 g
• Dimensions 6.6 × 6.6 × 2 cm
• LoRa Band
• LORA WiFi BLE
• 0.96″ 128X64 OLED
• 433~510MHz
• Li-Po Management

Features:

1. Operating voltage: 3.3V to 7V.
2. Operating temperature range: -40°C to +90°C.
3. Support for Sniffer, Station, softAP, and Wi-Fi Direct modes.
4. Data rate: 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g, 11 Mbps@11b.
5. Transmit power: 19.5 dBm@11b, 16.5 dBm@11g, 15.5 dBm@11n.
6. Receiver sensitivity up to -98 dBm.
7. UDP continuous throughput of 135 Mbps.

Summary

WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation. Since its launch in 2017, it has been loved by developers and makers. The newly launched V3 version has the same pin sequence as the V2 version and retains Wi-Fi, BLE, LoRa, OLED display, and other functions.

It is the best option for smart cities, farms, homes, industrial control, house security, wireless meter reading, and IoT developers.

Compared to WiFi LoRa 32 (V2), V3 has made the following upgrades:

Item	WiFi LoRa 32 (V2)	WiFi LoRa 32 (V3)
MCU	ESP32-D0	ESP32-S3
LoRa Node Chip	SX1276	SX1262
USB Socket	Micro USB	USB Type C
Crystal Oscillator	Ordinary crystal oscillator	High precision temperature compensated crystal oscillator
Low Power Features in Deep Sleep	≈800uA	<10uA
Other Update		Better impedance matching of RF circuits.

Main Features

• Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual-core processor, five-stage pipeline rack Structure, frequency up to 240 MHz).
• SX1262 LoRa node chip.
• Type-C 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 low-power design.

Specifications

Parameters	Description
Master Chip	ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor)
LoRa Node Chip	SX1262
USB to Serial Chip	CP2102
Frequency	470~510MHz, 863~928MHz
Max. TX Power	21±1dBm
Max. Receiving sensitivity	-136dBm@SF12 BW=125KHz
Wi-Fi	802.11 b/g/n, up to 150Mbps
Bluetooth	Bluetooth 5 (LE)
Hardware Resource	7*ADC1 + 2*ADC2; 7*Touch; 3*UART; 2*I2C; 2*SPI; etc.
Memory	384KB ROM; 512KB SRAM; 16KB RTC SRAM; 8MB SiP Flash
Interface	Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX1.0); 2*18*2.54 Header Pin
Battery	3.7V lithium battery power supply and charging
Operating Temperature	-20 ~ 70 ℃
Dimensions	50.2 * 25.5* 10.2 mm

Pin Map

Package included:
1 x Heltec WiFi ESP32 LoRa 32 (V3) 433~510MHz SX1262 Ble 0.96 inch OLED ESP32 board kit for Iot maker

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