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ESP32 LoRa V4 Development Board Upgraded ESP32-S3 SX1262 LoRa Module WiFi Bluetooth 2MB PSRAM 16MB Flash Supports GPS & Solar for Arduino Meshtastic LoRaWAN IOT

About this item

  • Upgraded ESP32-S3 & SX1262 Core for High-Performance IoT Projects: Powered by the advanced ESP32-S3R2 and SX1262 LoRa chip, this ESP32 development board delivers robust WiFi, Bluetooth LE 5.0, and long-range LoRa communication. Ideal for Meshtastic nodes and Arduino-based wireless projects requiring reliable connectivity and real-time data transmission in smart agriculture, industrial monitoring, or remote sensing.
  • Enhanced Power & Memory: Experience superior signal strength with up to 28dBm LoRa transmission power and ultra-low reception sensitivity (-137dBm). Equipped with 2MB PSRAM and 16MB Flash, it excels in running complex firmware, UI interfaces, and multitasking applications—perfect for ESP32 dev boards used in IoT devices, asset tracking, and home automation systems.
  • Full Expansion Support: Expand functionality easily with dedicated SH1.25-8Pin GNSS interface and SH1.25-2P solar panel input (4.4-6V). Perfect for outdoor Meshtastic GPS trackers, solar-powered sensor networks, or off-grid environmental monitoring.
  • Ultra-Low Power Design with Smart Power Management: Optimized for low-power applications, sleep mode draws less than 20μA. Battery management features support lithium battery charging, overcharge protection, and seamless switching between USB and battery/solar power. It is an ideal solution for portable or remote deployments like wireless alarms, water meter reading, or mobile LoRaWAN nodes.
  • Plug-and-Play Design: Backward compatible with ESP32 LoRa V3/V2 pinouts and fully supports Arduino IDE, MicroPython, and ESP-IDF. Features a USB Type-C with ESD protection, dual IP EX antennas (LoRa & 2.4GHz), and expanded header pins. A top-tier choice among ESP32 boards for makers, engineers, and Meshtastic users.

Product description

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ESP32 LoRa V4 Parameters

Master Chip ESP32-S3R2 (32-bit lx7 dual core processor)
LoRa Node Chip SX1262
Frequency 433~510MHz, 863~928MHz
Max. TX Power 21±1dBm, 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; 16MB Flash, 2MB PSRAM
Interface USB Type-C; SH1.25-2P lithium battery interface; SH1.25-2P solar panel interface; SH1.25-8Pin GPS interface; 2*IPEX1.0 ANT(LoRa&2.4G); 2*18*2.54 Header Pins, 2*2*2.54 Header Pins
Power Supply 5V@USB, 3.3-4.4V@Battery
Operating Temperature -20 ~ 70 ℃

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