• Description

Heltec Wireless Stick V4 – GPS (ESP32-S3 + LoRa + GNSS)

The Heltec Wireless Stick V4 – GPS builds on the standard V4 platform by adding external GNSS capability, making it ideal for location-aware LoRa and mesh networking projects. It features the same ESP32-S3R2 MCU, SX1262 LoRa transceiver, protected OLED display, and high-power RF design, while exposing a dedicated GNSS interface and including a GPS antenna for rapid deployment.



This version is especially suited for Meshtastic nodes, asset tracking, mobile telemetry, and outdoor sensor networks where positioning data is required. The optimized power system supports lithium batteries, optional solar charging, and deep-sleep operation below 20 µA, ensuring long-term operation in remote or mobile installations.

Quick Spec

• MCU: ESP32-S3R2 dual-core Xtensa® LX7
• LoRa Chip: SX1262
• GNSS Support: External GNSS via 1.25-8P interface
• LoRa Frequency: 863–928 MHz (high-power version)
• Max LoRa TX Power: 28 ±1 dBm
• Receiving Sensitivity: up to -137 dBm @ SF12 / 125 kHz
• Wi-Fi: 802.11 b/g/n
• Bluetooth: BLE, Bluetooth 5, Bluetooth Mesh
• Memory: 2MB PSRAM, 16MB external Flash
• Display: Onboard 0.96" OLED with protective casing
• Antennas: 2.4GHz FPC antenna + IPEX connector, LoRa IPEX connector
• Interfaces: USB Type-C, Li-ion battery (1.25-2P), GNSS header (1.25-8P)
• Battery Support: 3.3–4.4V lithium battery
• Ultra-Low Power: <20 µA sleep current
• Dimensions: 51.7 × 25.4 × 10.7 mm

Product Video

Heltec Wireless Stick V3 vs V4 Comparison

Parameters	V3	V4
MCU	ESP32-S3FN8	ESP32-S3R2
Flash	8MB (integrated)	16MB (external)
USB to Serial Chip	CP2102	Removed
Power Management	Standard Li-ion IC	Upgraded IC with solar support
Solar Input	Not available	1.25-2P interface added
LoRa TX Power	21 ±1 dBm	28 ±1 dBm
2.4G Antenna	Metal spring antenna	FPC antenna + IPEX
GPS Interface	Not available	1.25-8P interface added
Peripheral I/F	36-pin	40-pin
Screen Connection	Soldered	Soldered + B2B
Pin Craft	Silver-plated	Gold-plated
Screen Bracket	Partial protection	Full protection

Board Layout

Pinout

Resources

• Product Page
• Heltec MQB Platform
• User Manual
• Schematic
• Datasheet
• Heltec ESP32 Development Framework (Board Manager, Basic Examples)
• Heltec ESP32 Extension Libraries (LoRa/LoRaWAN, Sensors, etc.)

Shipping List

• 1 x Heltec Wireless Stick V4 – GPS (ESP32-S3 + LoRa + GNSS)
• 1 x LoRa Antenna
• 1 x GPS Antenna
• 2 x 1.25mm 2-Pin Connector (for battery & solar)
• 2 x 2.54mm 18-Pin Header Pins
• 2 x 2.54mm 2-Pin Header Pins

Heltec Wireless Stick V4 – GPS (ESP32-S3 + LoRa + GNSS)

• Brand: Generic
• Product Code: HELTEC-ESP32-V4-GPS
• Weight: 0.027kg
• Product Status : Active

Stock

Warehouse	Stock Status	Location
Centurion	In Stock	Y132
Stellenbosch	In Stock	C0181
Bulk Location	No Stock

We ship free of charge between branches to complete your order.

• R928.00 (Inc Tax: R1,067.20)