USB Relay Module USB Intelligent Control MCU PC USB Smart Control Jog Self-Locking

**** The USB Relay Module has seen a mixed reception among customers, with functional usability standing out positively while some technical inConsistencies garnered frustration. Many customers appreciated the main functionality of the relay, reporting that it performed as expected for switching operations. However, a notable concern was raised regarding the commands used for controlling the device. Some users specifically noted that the documented commands (0xAA and 0xBB) did not work for them, and instead, they had to resort to using alternative hexadecimal commands (0xA0 01 01 A2 for switching ON and 0xA0 01 00 A1 for switching OFF) to operate the relays correctly. Such discrepancies in the product's specification have led to confusion and dissatisfaction for some users who relied on the provided instructions. Moreover, there were criticisms regarding the manufacturing quality, specifically concerning leftover soldering flux, which customers indicated could lead to long-term performance issues. Additionally, the product description misinformed users about its technology, with claims of HID technology being incorrect, since it primarily utilizes serial port communication. Despite these drawbacks, many users successfully implemented the relay in various projects, sharing coding examples and scripts that have helped others leverage the module for specific applications, such as automated device control. The Consensus reflects that while the USB Relay Module can perform well with the correct commands, improved documentation and quality assurance could enhance customer satisfaction overall. **