Heltec WiFi LoRa 32(V4), ESP32S3 + SX1262 LoRa Node, Meshtastic & LoRaWAN

$26.97
5.0

Pickup available at 3205 SW 40th Blvd Ste A

Usually ready in 1 hour

The classic Heltec WiFi LoRa 32 development board has been upgraded to the all-new V4 version. While retaining the advantages of previous editions, it features comprehensive improvements in craftsmanship and enhanced performance.

Main Features

  • Base on ESP32-S3R2 & SX-1262, supports Wi-Fi b/g/n, BLE, and LoRa communication.
  • 2MB PSRAM and 16MB external Flash, more suitable for UI and complex system.
  • LoRa Transmit Power: High-power version 28 dBm.
  • PC casing protects the screen and integrates FPC 2.4G antenna.
  • Form factor and pin compatibility with WiFi LoRa 32 V3.
  • PC casing protects the screen and integrates FPC 2.4G antenna.
  • Added SH1.25-2Pin solar panel interface, and SH1.25-8Pin GNSS interface.
  • Optimized lithium battery management.
  • Low power consumption is less than 20μA.

Hardware Version Comparison


Parameters Heltec V3 Heltec V4
MCU ESP32-S3FN8 ESP32-S3R2
Flash 8MB (integrated) 16MB (external)
USB to Serial Chip CP2102 Removed CP2102
Power Management Standard Li-ion management IC Upgraded IC supporting solar input
Solar Input Not available Added SH1.25-2P interface
LoRa TX Power 21±1dBm 28±1dBm
2.4G Antenna Metal spring antenna FPC antenna + IPEX connector
GPS Interface Not available Added SH1.25-8Pin interface
Peripheral I/F 36-pin 40-pin
Screen Connection Soldered Soldered + B2B connector
Pin Craft Silver-plated Gold-plated
Screen Bracket Partial protection Full protection

More Powerful MCU

The ESP32-S3R2 offers 2 MB of PSRAM and is equipped with an external 16 MB Flash, making the upgraded memory configuration more suitable for UI and complex system design.

Higher Transmission Power

This device is the high-power version. The high-power version offers a transmit power of up to 27 ± 1 dBm, enabling longer communication distances and adaptability to a wider range of application scenarios.

Layout

Pin Map

Specifications


Parameters Description
MCU ESP32-S3R2 (Xtensa®32-bit lx7 dual core processor)
LoRa Chip SX1262
Frequency High-power version: 863-928MHz
Max. TX Power High-power version: 28 ±1 dBm
Max. Receiving sensitivity -137dBm@SF12 BW=125KHz
Wi-Fi 802.11 b/g/n, up to 150Mbps
Bluetooth Bluetooth (LE), Bluetooth 5, Bluetooth Mesh
Hardware Resource 7*ADC1 + 2*ADC2;
7*Touch;
3*UART;
2*I2C;
2*SPI; etc.
Memory 384KB ROM; 512KB SRAM; 16KB RTC SRAM; 2MB PSRAM; 16MB Flash
Interface USB Type-C;
SH1.25*2 Pin lithium battery interface;
SH1.25*8 Pin interface;
Lora ANT(IPEX1.0);
2.4G ANT(IPEX1.0)
Battery applicable 3.3-4.4V lithium battery
Operating Temperature -20 ~ 70 ℃
Dimensions 51.7*25.4*10.7mm



Docs & Resource


What's included

Item Quantity
WiFi LoRa 32 (V4) x1
LoRa Antenna x1
SH1.25×2 Connector (for battery&solar) x2
2.54*18 Header Pin x2
2.54*2 Header Pin x2


Dev board return policy

Development boards are specialty items that generally cannot be resold on return, especially if the firmware has been flashed. Defective boards can be replaced or returned for refund within 30 days of purchase. Non-defective boards can be returned in the same time frame if in like-new condition with a 20 percent restocking fee applied. If the board has had altered firmware or became bricked due to a non-standard firmware flash, the board may not be eligible for return.

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.
Shipping & Returns

FREE Standard shipping on all orders shipped in the USA! 

Special offer- FREE shipping promotion on all USA orders of any value has been extended to October 1st

We are in Florida and ship to: USA, Australia, Austria, Canada, France, Germany, Israel, Netherlands, the United Kingdom, and other countries (see full list in cart).

Local pickup available in Gainesville, FL

Expedited shipping orders placed before 3PM EST weekdays will ship that day. Standard shipping orders ship within 1-2 business days.

Sales tax: shipments shipped to states in which we are registered to collect tax will have appropriate tax added at checkout. Tax exempt forms can be sent to our support staff who can activate exemption status. 

Lost packages and insurance

International Shipping:

Shipping options are visible in cart by using the shipping estimator. Transit times posted are estimates. International packages are subject to customs holds and duty payment may be required by your government on delivery. The cost of duty  is not reimbursable. Internatonal shipping charges are not refundable in the event of a return.

Returns

See item description for product specific return policies, and return policies vary by item.

Bulk/High Value Order Returns

Due to the labor required to package and ship bulk orders, as well as cost and stock issues involved in replenishing items, bulk orders of 5 pieces or more are not returnable unless the equipment is defective or mis-advertised, or a return period is prenegotiated. For non-defective returns over $500, a restocking fee may be deducted from the refund to cover bank or card processing fees.

Backorder/Preorder

Items on backorder or preorder will ship as estimated on the item page. You can cancel an order any time up until shipment. Orders with expedited shipping will arrive in the advertised time after the order ships, not after the order is placed.

Cancellations

If you want to cancel an order, please email or call us at (352) 372-9902. If your item has not been shipped, we will cancel the order and provide a full refund.

GPSR Information