[size=4] Sensitive resistors are a type of sensitive components. Most of these resistors are particularly sensitive to certain physical conditions. Once the physical conditions change, the resistance
[i=s]This post was last edited by qwqwqw2088 on 2016-6-19 21:42[/i] With the popularity of smartphones and the increasing demand for mobile phone battery life, the fast charging technology of smartpho
Hello everyone, this problem has troubled me for a long time. This device can realize the functions of scanning barcodes, swiping cards and printing, but it seems that it can only print 3150 Chinese c