User Manual Q&AAnswer
Dec 17, 2025 - 10:45 PM
To connect and set up the GREE GRJWB05-J WiFi Module, follow these steps:
1. **Power Supply:** Connect the VCC pin of the module to a +5V power source.
2. **UART Communication:** Connect the TX pin of the module to the UART_TX pin of your device and the RX pin of the module to the UART_RX pin of your device.
3. **Ground Connection:** Connect the GND pin of the module to the ground of your device.
4. **Antenna:** The module comes with an internal antenna, so no external antenna connection is required.
5. **Operational Use Conditions:** Ensure a minimum separation distance of 20 cm between the antenna radiating structures and nearby persons when using the module in your host product.
6. **Compliance:** Make sure to comply with FCC Part 15.247 and Canada RSS-247 rules when using the module.
7. **Testing:** Follow FCC KDB Publication 996369 D04 Module Integration Guide for testing the host products when integrating the module.
By following these steps and guidelines provided in the manual, you can successfully connect and set up the GREE GRJWB05-J WiFi Module for your application.
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