Scanning guns are divided into wired scanning guns and wireless scanning guns. We have already shared the use of wireless scanning guns. Here we mainly share the use of wired scanning guns.

Wired scanners are divided into three interfaces: USBRS232TTL

1. The scanning gun with USB interface is the easiest to use. Just connect the USB port of the scanning gun to the USB port of the computer host. Here, it should be noted that the USB should be connected to the USB at the back of the computer, not the front one, because the USB on the front of the computer It is an extension cord, and data transmission may be unstable. After connecting, open a text, place the cursor at the position where the data is to be transmitted, and then scan the code to transmit the data.

2. One of RS232/TTL is a serial port and the other is a virtual serial port. Their data transmission cannot be directly transmitted by opening the text box, and it needs to be completed with the help of a serial port assistant.