Heltec WiFi LoRa 32 V4 ESP32-S3 SX1262 LoRa Development Board
Overview
The Heltec WiFi LoRa 32 V4 is a high-performance IoT development board built around the ESP32-S3R2 dual-core processor and SX1262 LoRa transceiver.
Quality ESP32 S3 board integrates Wi-Fi, Bluetooth 5 (LE & Mesh), and long-range LoRa communication into a compact, low-power platform designed for next-generation IoT and Meshtastic applications.
With enhanced processing capability, optimized power management, solar input support, and GNSS interface expansion, this board is ideal for developers building scalable wireless sensor networks, outdoor tracking systems, and industrial IoT solutions.
Core Highlights
- High-Performance ESP32-S3 Platform – Dual-core Xtensa LX7 processor for advanced IoT workloads
- Long-Range LoRa Communication – SX1262 transceiver with high sensitivity and stable transmission
- Multi-Protocol Connectivity – Supports Wi-Fi (802.11 b/g/n), Bluetooth 5.0 (LE & Mesh), and LoRa
- High Power Output – Up to 28 dBm transmission power (high-power version)
- Large Memory Resources – 16MB Flash + 2MB PSRAM for complex applications
- Ultra-Low Power Design – Deep sleep consumption below 20μA
- Flexible Power System – USB Type-C, lithium battery, and solar input support
- GNSS Expansion Ready – SH1.25-8Pin interface for GPS module integration
- Compact & Developer Friendly – Designed for rapid prototyping and embedded development
Specifications
| Item | Details |
|---|---|
| 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 Support | 3.3V–4.4V lithium battery |
| Operating Temperature | -20°C ~ 70°C |
| Dimensions | 51.7 × 25.4 × 10.7 mm |
Applications
- IoT sensor networks and smart monitoring systems
- Meshtastic and decentralized communication nodes
- Outdoor tracking and GPS-enabled asset monitoring
- Low-power remote data collection systems
- Educational embedded system development
- Emergency and off-grid communication solutions
Packing List
- 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)
Docs & Resources
- User Manual & Documentation
- Schematic (V4.2)
- Expansion Board Guide
- Download Center
- ESP32 Development Framework
Kindly Note
This is the WiFi LoRa 32 V4 standard version. V4 is compatible with most V3 applications, but some LoRa transmission parameters may require adjustment due to upgraded RF performance.
| Model |
With Screen + Antenna, With Screen + Antenna + 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
- All returns must be postmarked within seven (7) days of the purchase date.
- Items must be in new and unused condition, with all original tags and labels attached.
RETURN PROCESS
Return Address Request
To obtain the return address, please contact us via email before sending your return. We will provide you with the correct return details.
📧 Email us at: support@meshnology.com
Thank you for your understanding!
📌 Note: Customers are responsible for all return shipping costs. We strongly recommend using a trackable shipping method.
REFUNDS
- After receiving and inspecting your return, we will process your refund or exchange.
- Please allow at least seven (7) days from the receipt of your item for processing.
- Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company.
EXCEPTIONS
The following items cannot be returned or exchanged:
- Improper or unreasonable use or maintenance
- Failure to follow operating instructions
- Accidents or excessive moisture damage
- Damage from insects, lightning, or power surges
- Connections to improper voltage supplies
- Unauthorized alterations or modifications
- Damage from inadequate packing or shipping procedures
- Use with other incompatible products
- Products that require modification for use outside their intended country
- Items purchased from unauthorized dealers
For defective or damaged products, please contact us at the email below to arrange a refund or exchange.
QUESTIONS?
If you have any questions about our return policy, feel free to contact us:
Our goal is to offer you the best shipping options, no matter where you live. Every day, we deliver to hundreds of customers across the world, ensuring that we provide the highest levels of responsiveness to you at all times.
Shipping Rules:
- Before the order ships, you can cancel it, change the address information, and modify the shipping method. (We cannot change shipping addresses, shipping methods, or cancel your order after it has been shipped.)
- No return service is available once your package arrives at your local destination. If your address is incorrect or you do not pick up the package on time, it will most likely be destroyed locally. (Once your package is shipped, we will update the tracking information for you. Please pay attention to it, and contact us at support@meshnology.com or message us online if you have any issues.)
- For any abnormal orders, we will contact you via email or WhatsApp within 3 working days. If there is no reply within two days, the order will be canceled by default (e.g., due to items being sold out, pricing issues, shipping method restrictions, additional shipping fees, or battery-related restrictions).
- Customers are responsible for paying customs taxes.
How Long Until Your Order Ships?
- In stock: We will ship your order within 1-2 working days.
- Pre-order: Usually takes 2-7 working days, except for certain products.
Shipping Methods & Delivery Times
We currently offer three shipping methods:
- Free Standard Shipping - Your orders will be shipped via Standard Shipping by default (except for remote areas).
- Expedited Shipping - If you prefer faster delivery via DHL, FedEx, UPS, etc., you will need to pay an extra shipping fee.
- Ocean Shipping (USA Only) - Available for shipments to the USA.
Estimated Delivery Times (Standard Shipping):
- USA: 7-18 business days
- Japan: 4-12 business days
- Australia / Europe: 8-20 business days
- Canada: 12-25 business days
- Southeast Asia: 4-12 business days
- Turkey: 7-16 business days
- Russia: 20-50 business days
- Other Countries: 15-20 business days
Please Note:
- These are estimated delivery times; we cannot guarantee an exact delivery date.
- Orders containing batteries may experience longer shipping times.
- We are not responsible for shipping delays beyond our control.
Battery Shipping Restrictions
- We CANNOT ship batteries to the following countries:
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:
USA, Japan, Russia, Austria, Belgium, Czech Republic, Denmark, France, Hungary, Ireland, Italy, Luxembourg, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland, Netherlands.
Customs Clearance & Taxes
- Customers are responsible for customs taxes.
- If customs clearance cannot be completed due to customer-related reasons, we cannot provide a refund.
Warehouses
- US Warehouse – Ships only to US addresses.
- CN Warehouse – Ships internationally.
- If no warehouse option is displayed on the product page, the order will be shipped from the CN warehouse.
For further assistance, please contact us at support@meshnology.com.
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