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Heltec WiFi LoRa 32 V4 is the latest ESP32-S3 based LoRa development board, offering significant improvements over the previous WiFi LoRa 32 V3. With upgraded 28 dBm LoRa transmit power, GNSS expansion support, solar charging capability, enhanced RF performance, and 16 MB of Flash memory, it is an ideal platform for IoT applications, LoRaWAN, tracking devices, and Meshtastic projects.
Main Features
Based on the ESP32-S3R2 dual-core microcontroller and SX1262 LoRa transceiver, with support for Wi-Fi b/g/n, Bluetooth LE, and long-range LoRa communication.
Equipped with 2 MB PSRAM and 16 MB Flash memory, making it suitable for advanced applications, graphical user interfaces, and graphics-intensive projects.
High-power LoRa output of up to 28 dBm (approximately 630 mW). A low-power version is also available.
Rugged PC screen enclosure with an integrated 2.4 GHz FPC antenna.
Fully compatible form factor and pinout with the WiFi LoRa 32 V3.
Dedicated connectors for solar charging (1.25-2P) and a GNSS interface (1.25-8P).
Improved lithium battery management and safe charging circuitry.
Ultra-low power consumption: < 20 μA in deep sleep mode.
