Heltec WiFi LoRa 32 V4 ESP32-S3 SX1262 development board with accessories for IoT projects
ESP32-S3 SX1262 LoRa board front, back, and side views for DIY IoT projects and Meshtastic
Heltec WiFi LoRa 32 V4 ESP32-S3 SX1262 development board with accessories for IoT projects
ESP32-S3 SX1262 LoRa board front, back, and side views for DIY IoT projects and Meshtastic

Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN

Prix soldé $25.99 USD

1. High-Performance ESP32-S3 Platform – Dual-core Xtensa LX7 processor for advanced IoT workloads

2. Long-Range LoRa Communication – SX1262 transceiver with high sensitivity and stable transmission

3. Multi-Protocol Connectivity – Supports Wi-Fi (802.11 b/g/n), Bluetooth 5.0 (LE & Mesh), and LoRa

4. Large Memory Resources – 16MB Flash + 2MB PSRAM for complex applications

5. GNSS Expansion Ready – SH1.25-8Pin interface for GPS module integration

6. Compact & Developer Friendly – Designed for rapid prototyping and embedded development

In The Box: 1 × Heltec WiFi LoRa 32 V4 Board, 1 × LoRa Antenna, 2 × SH1.25 Connector Cables (Battery & Solar), 2 × 2.54 Pin Headers (18-pin), 2 × 2.54 Pin Headers (2-pin)

Modèle: With Screen + Antenna
Heltec WiFi LoRa 32 V4 ESP32-S3 SX1262 development board with accessories for IoT projects

Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN

HELTEC WiFi LoRa 32 V4 – Carte de développement ESP32-S3R2 & SX1262

La HELTEC WiFi LoRa 32 V4 est une carte de développement IoT améliorée, basée sur le processeur double cœur ESP32-S3R2 et la puce SX1262 LoRa. Conçue pour des applications sans fil hautes performances, elle prend en charge le Wi-Fi, le Bluetooth 5 (LE & Mesh) et la communication LoRa longue portée. Dotée d’une gestion de l’alimentation optimisée, d’une entrée pour panneau solaire et d’une interface GNSS, cette carte est idéale pour l’IoT avancé, les réseaux de capteurs et les projets extérieurs.

Caractéristiques principales

  • Based on ESP32-S3R2 dual-core processor & SX1262 LoRa chip
  • Compatible avec le Wi-Fi b/g/n, le Bluetooth 5.0 (LE & Mesh) et le LoRa
  • 2 Mo PSRAM et 16 Mo Flash intégrés
  • Puissance d’émission LoRa : version haute puissance jusqu’à 28 dBm
  • Optimized battery management with solar input support
  • Interface GNSS SH1.25-8Pin pour modules GPS
  • Antenne FPC + connecteur IPEX pour des performances flexibles en 2,4G
  • Faible consommation d’énergie : <20μA en veille profonde

Caractéristiques techniques

Paramètre Description
MCU ESP32-S3R2, Xtensa® 32-bit LX7 dual-core
Puce LoRa SX1262
Fréquence 863-928MHz (Haute puissance) / 433-928MHz (Basse puissance)
Max TX Power 28 ±1 dBm (Haute puissance)
Sensibilité de réception -137 dBm @SF12 BW=125KHz
Wi-Fi 802.11 b/g/n, jusqu’à 150 Mbps
Bluetooth Bluetooth 5.0 (LE & Mesh)
Mémoire 2 Mo PSRAM, 16 Mo Flash, 512 Ko SRAM
Interfaces USB Type-C, SH1.25 battery & solar, GNSS interface, IPEX antenna ports
Batterie 3.3V–4.4V lithium battery
Température de fonctionnement -20 ~ 70 ℃
Dimensions 51.7 × 25.4 × 10.7 mm

Liste de colisage

  • 1x HELTEC WiFi LoRa 32 V4 Board
  • 1x Antenne LoRa
  • 2x connecteurs SH1.25×2 (batterie & solaire)
  • 2x 2.54×18 Header Pin
  • 2x 2.54×2 Header Pin

Questions fréquentes

Q: 2.4GHz Antenna

The default 2.4G FPC antenna is located on the side of the plastic screen bracket.
2.4G Antenna

If you wish to use an IPEX-connected 2.4G antenna, you need to remove the inductor marked as ① in the diagram below, and add a 0-ohm resistor (or other conductive metal or cable) at the position marked ② to connect to the IPEX interface.
IPEX Antenna Mod

Q : Quelles méthodes de développement sont prises en charge ?

- Arduino
- Micro Python
- Platform.io
- Espressif IDE

Nous recommandons vivement d’utiliser Arduino. Nous assurons un support technique complet et fournissons le code LoRaWAN intégral pour le framework ESP32 Arduino.

Q : Quel est le type de connecteur de la batterie ?

Vous pouvez trouver ce type de prise en cherchant “SH1.25 x 2”.

Q: Are V3 and V4 compatible?

Ils sont compatibles dans la plupart des cas.

Puisque la V4 utilise la même série de puces que la V3, possède le même écran OLED et un agencement de broches presque identique, la V3 et la V4 peuvent être utilisées de manière interchangeable dans la majorité des situations.

Cependant, en raison de la puissance d’émission accrue, les réglages de puissance d’émission dans certains codes peuvent ne plus correspondre directement à la sortie réelle.

Q : Échec du téléversement du code

Veuillez essayer les étapes suivantes :

• Essayez d’utiliser un autre câble USB.

• Passez en mode BootLoader. Deux méthodes :
1. Maintenez le bouton PRG enfoncé, connectez le câble USB-C, puis relâchez le bouton PRG.
2. Connectez le câble USB-C, maintenez le bouton PRG enfoncé, appuyez une fois sur le bouton RST, puis relâchez le bouton PRG.

Take a Closer Look

Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN 1
Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN 2

Specification

Item Specification
MCU
ESP32-S3R2 (Xtensa LX7 dual-core)
LoRa Chip
SX1262
Frequency Range
863–928MHz (High Power) / 433–928MHz (Low Power)
Max TX Power
Up to 28 dBm
Receiving Sensitivity
-137 dBm @ SF12, BW=125KHz
Wi-Fi
802.11 b/g/n (up to 150Mbps)
Bluetooth
Bluetooth 5.0 (BLE & Mesh)
Memory
16MB Flash / 2MB PSRAM / 512KB SRAM
Interfaces
USB Type-C, GNSS port, battery & solar input, IPEX antenna
Battery
3.3V–4.4V lithium battery
Operating Temperature
-20°C ~ 70°C
Dimensions
51.7 × 25.4 × 10.7 mm

Warranty & After-Sales

Many of our products are handcrafted, which may result in minor variations or imperfections. If you experience any quality-related issues withinone year of purchase, we will offer afull refund or a replacement shipment. Please contact our support team with photos or videos of the issue, and we will assist you accordingly.

Technical Support & Resources

Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN 1
User Manual
Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN 2
Certification
Heltec WiFi LoRa 32 V4 – Nœud ESP32-S3 + SX1262 LoRa, compatible Meshtastic & LoRaWAN 3
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