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.
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.
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.
| Modèle |
With Screen + Antenna, Avec écran + antenne + GPS |
|---|
Thank You for Your Purchase!
We hope you are happy with your purchase. However, if you are not completely satisfied for any reason, you may return it for a full refund, store credit, or exchange. Please see below for more details on our return policy.
RETURNS
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EXCEPTIONS
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For defective or damaged products, please contact us at the email below to arrange a refund or exchange.
QUESTIONS?
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- Other Countries: 15-20 business days
Please Note:
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- Orders containing batteries may experience longer shipping times.
- We are not responsible for shipping delays beyond our control.
Battery Shipping Restrictions
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Turkey, India, Germany, Brazil, Mexico, Chile, New Zealand, etc.
(If your order contains a battery and we have no shipping method available, we will contact you to change the product or cancel the order.) - We CAN ship batteries to these countries:
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Customs Clearance & Taxes
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