Heltec WiFi LoRa 32 V4 is a fully upgraded version of the classic LoRa development board. Building upon the powerful features of its predecessors, the V4 version introduces comprehensive optimizations in Transmit Power, power management, expandability and other hardware design.It is suitable for various IoT applications such as smart cities, agricultural monitoring, smart homes, industrial control, security systems, and wireless meter reading, providing developers with a more efficient and flexible development experience.Main FeaturesBase 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, Low-power version 22 dBmPC 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.Parameters:MCU:ESP32-S3R2Frequency: 863-928MHzFlash:16MB (external)USB to Serial Chip:Removed CP2102Power Management:Upgraded IC supporting solar inputSolar Input:Added SH1.25-2P interfaceLoRa TX Power:28±1dBm2.4G Antenna:FPC antenna + IPEX connectorGPS Interface:Added SH1.25-8Pin interfacePeripheral I/F:40-pinScreen Connection:Soldered + B2B connectorPin Craft:Gold-platedScreen Bracket:Full protectionColor: BlackMaterial: PCBPackage Contents:1*WiFi LoRa 32 V41 set of accessories1*GPS Module1 * 868MHz Antenna