meshnology n39 meshtastic off-grid communication texting radio device
meshnology n39 meshtastic off-grid communication texting radio device

Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit

Prix soldé $11.99 USD

1. ESP32-S3 + SX1262 Chipset – Supports Wi-Fi, Bluetooth BLE, and LoRa communication in one platform.
2. High Memory Upgrade – 2MB PSRAM + 16MB Flash for improved performance and UI rendering.
3. High-Power LoRa Transmission – Up to 27±1 dBm for extended communication range.
4. Integrated Design – Built-in casing, OLED display protection, and improved antenna stability.
5. Solar Power Support – SH1.25-2P solar input (4.4–6V / ≤540mA).
6. Advanced Power Management – Smart charging, protection circuits, and auto power switching.
7. GNSS Expansion Ready – SH1.25-8Pin interface for GPS module expansion.

Couleur: Vert
Taille: Boîtier seul

Product Description

Meshnology - N39 Heltec WiFi LoRa 32 V4 – Carte de développement ESP32-S3 LoRa améliorée

The Meshnology - N39 Heltec WiFi LoRa 32 V4 is the fully upgraded successor to the classic LoRa development board series that has been loved by developers and makers since 2017. Building on the powerful features of previous generations, the V4 introduces major improvements in transmit power, power management, expandability, and overall hardware design.

This board is ideal for a wide range of IoT applications, including smart cities, agricultural monitoring, smart homes, industrial automation, security systems, and wireless metering—delivering developers a more efficient and flexible development experience.

Caractéristiques principales

  • Chipset ESP32-S3R2 + SX1262 – Prend en charge le Wi-Fi (802.11 b/g/n), le Bluetooth BLE et la communication LoRa.
  • Memory Upgrade – 2MB embedded PSRAM + 16MB external Flash, optimized for UI rendering and complex systems.
  • Puissance de transmission LoRa augmentée – Jusqu’à 27±1dBm pour une communication longue portée renforcée.
  • Conception compatible – Même format et disposition des broches que la WiFi LoRa 32 V3, mise à niveau facile.
  • Boîtier PC intégré & Antenne – Protection d’écran fermée avec antenne FPC 2,4 GHz intégrée pour une durabilité et une stabilité du signal accrues.
  • Alimentation solaire prise en charge – Interface panneau solaire SH1.25-2P ajoutée (compatible 4,4–6V / ≤540mA).
  • Gestion optimisée de la batterie – Charge/décharge intelligente, protection contre la surcharge, détection d’alimentation et basculement fluide USB/batterie.
  • Extension améliorée – Interface GNSS SH1.25-8Pin ajoutée pour modules de positionnement.
  • Interface USB Type-C – Avec régulation de tension intégrée, protection ESD, protection contre les courts-circuits et isolation RF.
  • Consommation ultra-faible – Moins de 20μA, avec contrôle indépendant de l’alimentation GNSS.

Package Includes
Heltec WiFi LoRa 32 V4 development board
3000mAh rechargeable Li-ion battery (pre-installed)
N39 protective case
863~928MHz antenna

Dimensions and Weight
Board with case: approx. 85mm*45mm*35mm
Total weight: approx. 100g (including battery and case)

V3 vs V4 – Comparison Table

Caractéristique ESP32 LoRa 32 V3 WiFi LoRa 32 V4 (Version améliorée)
MCU principal ESP32-S3FN8, double cœur, jusqu’à 240 MHz ESP32-S3R2, dual-core, 2MB PSRAM, 16MB Flash
Puce LoRa SX1262 SX1262
Interface USB Type-C, avec régulation de tension et protection ESD Type-C, avec régulation de tension, ESD, protection contre les courts-circuits, isolation RF
Puces USB-série CP2102 intégré Retiré – design simplifié, coût réduit
Affichage OLED 0,96″ 128×64 OLED 0,96″ (avec protection boîtier PC)
Antenne 2.4GHz spring antenna  Antenne FPC 2,4 GHz intégrée avec boîtier + Connecteur IPEX
Interface batterie SH1.25-2, avec gestion charge/décharge SH1.25-2, gestion optimisée, entrée panneau solaire (4,4–6V / ≤540mA)
GPS Interface Indisponible Ajout de l’interface GNSS SH1.25-8Pin
Connectivité sans fil Wi-Fi b/g/n, Bluetooth 5 (LE), LoRa Wi-Fi b/g/n, Bluetooth 5 (LE), LoRa
Mémoire 384KB ROM, 512KB SRAM, 16KB RTC SRAM, 8MB Flash 2 Mo PSRAM + 16 Mo Flash
Puissance TX LoRa 21 ±1dBm 27 ±1dBm (High Power Upgrade)
Consommation électrique Conception basse consommation Ultra-faible <20μA, alimentation GNSS contrôlable indépendamment
Dimensions 50.2 × 25.5 × 10.2 mm Empreinte similaire (compatible broches V3)
Température de fonctionnement -20 ~ 70 ℃ -20 ~ 70 ℃
Support de développement Arduino IDE Arduino + compatibilité étendue
Éléments remarquables CP2102 for programming/debug Entrée solaire, LoRa renforcé, GNSS, protection du boîtier

Questions fréquentes

Q: 2.4GHz Antenna

L’antenne FPC 2,4G par défaut est située sur le côté du support d’écran en plastique.
Antenne 2,4G

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

Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 1
Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 2
Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 3
Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 4

Specification

Item Specification
MCU
ESP32-S3R2 dual-core processor
LoRa Chip
SX1262 (high-power transmission)
Memory
2MB PSRAM + 16MB Flash
Wireless
Wi-Fi 802.11 b/g/b + Bluetooth BLE + LoRa
Power Interface
USB Type-C with protection circuit
Battery support
Smart charging/ discharging system
Solar input
4.4 - 6V/ ≤540mA
GNSS
External expansion supported (SH 1.25-8Pin)

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

Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 1
Product Manual Download
Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 2
Product Certificates
Meshnology N39 - WiFi LoRa 32 V4 Heltec Meshtastic Hardware Device Kit 3
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