HTIT-Wsh (Wireless Shell V3) is a compact and efficient LoRa node module designed for long-range communication, high sensitivity, and low power consumption (sleep current as low as 9μA). It features an upgraded ESP32-S3FN8 dual-core processor and SX1262 LoRa transceiver, offering enhanced performance over the previous version with improved RF circuit matching and temperature-compensated crystal oscillators.
With a size of 38.4 x 16.1 x 3.2 mm and 1.27mm stamp holes, this module integrates easily into PCBs or products. It supports Wi-Fi, Bluetooth 5 (LE, Mesh), and LoRaWAN protocol with Arduino compatibility, making it beginner-friendly and versatile for IoT development. The inclusion of RF shielding, dual IPEX antenna sockets, and a Type-C USB interface ensures robust connectivity and reliability, making it ideal for professional-grade applications.
Compared to Wireless Shell (V2), V3 has made the following upgrades:
| Item | Wireless Shell (V2) | Wireless Shell (V3) |
|---|---|---|
| MCU | ESP32-D0 | ESP32-S3 |
| LoRa Node Chip | SX1276 | SX1262 |
| USB Socket | Micro USB | USB Type C |
| Crystal Oscillator | Ordinary crystal oscillator | High precision temperature compensated crystal oscillator |
| Low Power Features in Deep Sleep | 30uA | <10uA |
| Other Update | Better impedance matching of RF circuits. |
Main Features
- CE Certificate;
- Microprocessor:ESP32-S3FN8 (Xtensa ® 32-bit LX7 dual core processor, five stage pipeline rack Structure, main frequency up to 240 MHz), with LoRa node chip SX1262;
- RF shielding (contain a shield shell) and other protection measures;
- Integrated WiFi, LoRa, Bluetooth network connections, both of them are IPEX socket;
- Support the Arduino development environment;
- (Exclusive) Supports the Arduino version of the ESP32 + LoRaWAN protocol routine provided by Heltec. This is a standard LoRaWAN protocol that can communicate with any gateway/base station running the LoRaWAN protocol (requires serial number activation, only the development of the company) The board is available, the serial number can be queried onthis page);
- With good RF circuit design and basic low-power design (sleep current: 9uA theoretically), it is convenient for IoT application vendors to quickly verify solutions and deploy applications.
Specifications
| Parameters | Description |
|---|---|
| Master Chip | ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor) |
| LoRa Node Chip | SX1262 |
| Frequency | 470~510MHz, 863~928MHz |
| Max. TX Power | 21±1dBm |
| Max. Receiving Sensitivity | -139dBm |
| Wi-Fi | 802.11 b/g/n, up to 150Mbps |
| Bluetooth LE | Bluetooth 5, Bluetooth mesh |
| Hardware Resource | 7*ADC1 + 8*ADC2; 9*Touch; 3*UART; 2*I2C; 2*SPI; etc. |
| Interface | LoRa ANT(IPEX1.0); 2.4G ANT (IPEX1.0); 1.27 spacing Stamp hole. |
| Operating Temperature | -40 ~ 85 ℃ |
| Dimensions | 38.4 * 16.1* 2.8 mm |