Question

Would you tell us commands to change the qr scanning mode in Telpo T-20? We need to turn off the scanner after scanning. now the problem is that the scanner does not turn off after reading and immediately reads the same qr

Answer 1

The problem is that temporary values are triggered when users scan codes from far to near, causing repeated code scanning at the same time

Now we have two solutions:

1 、we can try to set the scan time to 1~3s of scaner when users scan the same qr code at the same time .

please refer the guide to set it :http://service.telpo.net:8091/index/user/fetfile?key=c16PSFh7J5buKRIf

2 、we suggest that you need modify your app if scan the qr code successful ,limit it to scan the same qr code at the same time successfully in your app such as do not charge fee with same qr in 15mins and you can allow it to double scan after 15mins .when scan qr code succussful ,you can reminder users the result in your app ui and send voice to them.it depends on how your app judge the diffenent qr code.