Q: What is secondary development?
A: Generally the QR code is placed on the code scanner, it can output the data of the QR code obtained by scanning. For some customers with development capability, they are not satisfied with the simple output mode, so they need more advanced functions,and we can open interfaces in order to call these functions. Devices with these interfaces are called to support secondary development. We will provide customers with the corresponding SDK or communication protocol to help customers with secondary development.
Q: Serial port parity bit, stop bit is what it means?
A: The factory default is 1bit stop bit / no parity bit, if you want to change, you can use the configuration tool to configure.
Q: Can I use PS2 to USB cable to connect our USB keyboard mode device?
A: Not recommended.
Q: The device can not scan the code, how to do?
A: First of all, it is clear whether the code is unresponsive or the code is responsive without output; if there is a response, it
means that the device has been read to the QR code, the background can not receive the QR code content is due to the transmission path or the configuration of the problem; if there is no response, confirm that the choice of the ordinary mode rather than the
secondary mode of development, the secondary mode of development, the need to call the appropriate interface to get the scanning code data, if it is an ordinary mode, then If it is normal mode, it can be judged as a hardware problem, and can be sent back for repair. For details, please consult the service personnel of the platform.