WiFi LoRa 32 V4

The classic 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.

Product Page

Product characteristics

• Based on ESP32-S3R2 + SX1262, supporting Wi-Fi b/g/n, BLE, and LoRa.
• Equipped with 2MB PSRAM and 16MB external Flash for UI and complex applications.
• Available in high-power (28 dBm) and low-power (22 dBm) versions.
• Added SH1.25-2Pin solar panel and SH1.25-8Pin GNSS interfaces.
• PC casing with integrated antenna, optimized battery management, and ultra low power consumption (<20 μA).

Hardware Version Comparison

Parameters	V3	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±1 dBm	28±1 dBm
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

Important Resources

• Datasheet
• Schematic diagram
• Pin Map
• Related links

Product Usage Guide

The following documentation will help you get started quickly with the product

• Install development environment
• Three Development Platforms
• Applied to LoRaWAN
• Applied to Meshtatic
• How to use license

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danger

In Arduino, it is recommended to update the required libraries to the latest version first. After the update, click Reload Board Data in the Tools menu to refresh the cache and ensure the latest configuration is applied correctly.

For the WiFi LoRa 32 V4 development board, different hardware revisions also require selecting the correct LoRa FEM option in the Tools menu.

• V4.2, select USE_GC1109_PA.
• V4.3, select USE_KCT8103L_PA.