Heltec WiFi LoRa 32(V3) Dev-board USB Type C with SX1262 ESP32-S3 LORA node with Wi-Fi BLE LoRa OLED display
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Specifications
- Brand Name
- Heltec Automation
- Origin
- Mainland China
- High-concerned chemical
- None
- DIY Supplies
- Electrical
- Electronic
- No
- Master Chip
- ESP32-S3FN8
- LoRa Node Chip
- SX1262
- USB to Serial Chip
- CP2102
- Frequency
- 470~510MHz,863~928MHz
- Max.TX Power
- 21+1dBm
- Wi-Fi
- 802.11 b/g/n, up to 150Mbps
Product Description
Note:
V3 Wifi Lora 32 case Only applicable to spring antennas ,As shown in the following figure
WiFi LoRa 32 (V3):
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).
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.
Onboard 0.96-inch 128*64 dot matrix OLED display can be used to display debugging information, battery power, and other information.
Integrated CP2102 USB to serial port chip, convenient for program downloading, and debugging information printing.
Support the Arduino development environment.
We provide ESP32 + LoRaWAN protocol Arduino® library, this is a standard LoRaWAN protocol that can communicate with any LoRa gateway running the LoRaWAN protocol. To make this code run, a unique license is needed. it can be found on this page;
With good RF circuit design and low-power design.
Master Chip:ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor)
LoRa Chipset:SX1262
USB to Serial Chip:CP2102
Frequency :470~510 MHz, 863~928 MHz
Max. TX Power :21 ± 1 dBm
Max. Receiving sensitivity:-139 dBm
Wi-Fi :802.11 b/g/n, up to 150Mbps
Bluetooth:Bluetooth LE: Bluetooth 5, Bluetooth mesh
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
Pros & Cons
Pros
- Powerful ESP32-S3 with Wi-Fi, BLE, LoRa SX1262 for IoT projects.
- OLED display and USB-C for easy development and programming.
- High TX power 22dBm and wide frequency support for long-range communication.
- Compact dev-board ideal for makers with Heltec quality.
Cons
- Case limited to spring antennas only, not universal.
- Frequency bands may require regional configuration.
- DIY electrical supplies, needs programming knowledge.
- Mainland China origin might have export restrictions for some regions.
Common Questions
What chips are used in Heltec WiFi LoRa 32 V3 dev-board?
ESP32-S3FN8 master chip, SX1262 LoRa node, CP2102 USB serial, OLED display.
What frequencies and power does this LoRa ESP32 support?
470~510MHz, 863~928MHz frequencies, max TX power 21+1dBm, Wi-Fi 802.11 b/g/n up to 150Mbps.
Is the Heltec V3 board compatible with USB Type C?
Yes, USB Type C interface, with Wi-Fi BLE LoRa capabilities for DIY electrical projects.
What case compatibility note for WiFi LoRa 32 V3?
V3 case only for spring antennas, Microprocessor Xtensa 32-bit LX7 dual-core up to 240MHz.
Where is the Heltec Automation LoRa node dev-board from?
Origin Mainland China, no high-concerned chemicals.
Product information last updated on December 26, 2025