Heltec V3 Dev-board WIFI LoRa 32 V3 with SX1262 and ESP32-S3FN8 Chip OLED, Meshtastic Meshcore Paxcounter Support WiFi
SPECIFICATIONS
Accessory Type: Extension Board
Battery: 3.7V lithium battery power supply and charging
Battery Included: no
Bluetooth: Bluetooth 5 (LE)
Brand Name: Heltec Automation
Choice: yes
Compatible With: WIFI LoRa 32 V3
Dimensions: 50.2 * 25.5* 10.2 mm
Frequency: 470~510MHz, 863~928MHz
Hardware Resource: 7*ADC1 + 2*ADC2; 7*Touch; 3*UART; 2*I2C; 2*SPI; etc.
High-concerned chemical: none
Interface: Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX1.0); 2*18*2.54 Header Pin
LoRa Node Chip: SX1262
Master Chip: ESP32-S3FN8
Max. Receiving sensitivity: -134dBm@SF12 BW=125KHz
Max. TX Power: 21±1dBm
Memory: 384KB ROM; 512KB SRAM; 16KB RTC SRAM; 8MB SiP Flash
Operating Temperature: -20 ~ 70 ℃
Origin: Mainland China
Product Name: Heltec V3
Typical Application Fields: Internet of Things (IoT)
USB to Serial Chip: CP2102
Wi-Fi: 802.11 b/g/n, up to 150Mbps
semi_Choice: yes

Docs & Resource



Specifications
Parameters |
Description |
Master Chip |
ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor) |
LoRa Node Chip |
SX1262 |
USB to Serial Chip |
CP2102 |
Frequency |
433~510MHz, |
Max. TX Power |
21±1dBm |
Max. Receiving sensitivity |
-134dBm@SF12 BW=125KHz |
Wi-Fi |
802.11 b/g/n, up to 150Mbps |
Bluetooth |
Bluetooth 5 (LE) |
Hardware Resource |
7*ADC1 + 2*ADC2; |
Memory |
384KB ROM; |
Interface |
Type-C USB; |
Battery |
3.7V lithium battery power supply and charging |
Operating Temperature |
-20 ~ 70 ℃ |
Dimensions |
50.2 * 25.5* 10.2 mm |
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.

Dimension

FAQ
Arduino
Micro Python
Platform.io
Espressif IDE
We strongly recommend using Arduino. We have complete technical support and provide complete LoRaWAN code for ESP32 Arduino framework.
You can find this type of socket by search “SH1.25 x 2”.
Of course, you can contact our sales staff and provide your ideas.
No, the MCU is different.
It’s caused by the meshtastic setting. Changing the default screen to SSD1306 can solve the problem.
The specific steps are as follows:
“Radio configuration”→”Display”→”Override OLED auto-detect”→”SSD1306”
- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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