The HTIT-WSL is a highly optimized IoT development board, meticulously designed for projects where an OLED display is not required, serving as an ideal and cost-effective alternative to the WiFi LoRa 32. This powerful board is driven by the ESP32-S3FN8 dual-core processor and features an integrated SX1262 LoRa transceiver, ensuring seamless and robust connectivity across Wi-Fi, Bluetooth 5 (LE), and the LoRaWAN protocol. Equipped with a convenient Type-C USB interface, the HTIT-WSL simplifies power management, debugging, and firmware updates. Its robust battery management system supports 3.7V lithium batteries, complete with charge/discharge management, overcharge protection, and real-time power detection. With an exceptional low-power design (sleep current ≤800μA), outstanding RF performance, and full Arduino compatibility, the HTIT-WSL accelerates IoT development, enabling rapid solution validation and deployment for both beginners and experienced professionals. Key Features Powerful Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual-core processor, 240MHz). Integrated LoRa: Features the high-performance SX1262 LoRa node chip. Robust USB-C Interface: With complete voltage regulation, ESD protection, short-circuit protection, and RF shielding. Advanced Battery Management: Onboard SH1.25-2 battery interface, supporting 3.7V lithium batteries with charge/discharge management, overcharge protection, and automatic USB/battery power switching. Triple Network Connectivity: Integrated WiFi, LoRa, and Bluetooth, with onboard 2.4GHz metal spring antenna for Wi-Fi/Bluetooth and a reserved IPEX (U.FL) interface for LoRa. Convenient Debugging: Integrated CP2102 USB to serial chip for easy program downloading and debugging. Arduino Compatible: Fully supports the Arduino development environment for streamlined programming. Ultra-Low Power: Features a low-power design with sleep current ≤800μA, ideal for energy-efficient IoT applications. Detailed Specifications Parameter Description Master Chip ESP32-S3FN8 (Xtensa® 32-bit LX7 Dual-Core Processor) LoRa Chipset SX1262 USB to Serial Chip CP2102 Frequency 470~510MHz, 863~928MHz Max. TX Power 21dB ± 1dB Max. Receiving Sensitivity -134dBm Wi-Fi 802.11 b/g/n, up to 150Mbps Bluetooth LE Bluetooth 5, Bluetooth Mesh Hardware Resources 7*ADC1 + 9*ADC2; 8*Touch; 3*UART; 2*I2C; 2*SPI; etc. Memory 384KB ROM; 512KB SRAM; 16KB RTC SRAM; 8MB SiP Flash Battery 3.7V lithium battery power supply and charging Operating Temperature -20 ~ 70 ℃ Dimensions 58.08mm * 22.6mm * 8.2mm Interface Type-C USB; 2*1.25 lithium battery interface; LoRa ANT (IPEX1.0); 2.4G ANT (IPEX1.0); 2*20*2.54 Header Pin Pin Map Highlights Arduino-Compatible: Extensively optimized to support Arduino®, enabling stable LoRaWAN protocol operation perfectly. Universal USB Type-C: Features a Type-C interface for power, firmware downloads, and debugging, enhancing development convenience. Frequently Asked Questions (FAQ) Is Wireless Stick V3 compatible with V2 code? To utilize the new ESP32-S3 processor and SX1262 LoRa chip, you will likely need updated libraries that support these components. It's crucial to verify compatibility with your existing libraries. Based on experience with the Wireless Stick Lite, the primary change when transitioning from V1 to V3 was the LoRa library. The older Sandeep Mistry LoRa library is not compatible with the SX1262 LoRa chip, necessitating a migration to the Heltec LoRaWAN_APP library, which involves adapting to different function calls. How can LoRa be useful in your home automation projects? Imagine monitoring soil moisture in a distant garden plot that lacks Wi-Fi coverage. You could deploy an ESP32 sensor node with a moisture sensor to transmit readings via LoRa once or twice daily to another ESP32 within Wi-Fi range. This second ESP32 could then host a web server to display the moisture data. This illustrates how LoRa technology can bridge connectivity gaps in your ESP32 projects. How to get the License? Refer to this link: How to Use License — main latest documentation (heltec.org) Documentation & Resources [Resource] — Heltec ESP32 framework and library installation [Resource] — Hardware Update Logs [Resource] — Datasheet [Resource] — Schematic Diagram [Resource] — User Manual Document [Resource] — Heltec LoRaWAN test server based on SnapEmu Packing List The default packing list includes: Item Quantity Wireless Stick Lite x1 LoRa Antenna x1 SH1.25×2 Battery Connector x1 Pin Map Sticker x1 Recommended Articles Heltec ESP32 LoRa v3
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