After seeing @justd0's disassembly of the Delixi infrared thermometer -38~520℃ , which also used Fresnel lens, I felt that the thermometer I have is not that bad. I disassembled it once before, but be
USB CDC class is not new. In industrial environment, data communication, flexible use of upper application software, CDC class can really show its strength. It is also widely used in telecommunication
As shown in the picture, the level conversion chip (TI's TXS0108E) is 3.3V (frequency is 52khz, amplitude is 3.3V). The circuit is connected as shown (using the chip's A1 and B1 ports). But the signal
[backcolor=rgb(238, 238, 238)][font=Tahoma, Helvetica, SimSun, sans-serif][size=12px]I built a minimum system according to the official information of STC12C5A60S2. The IO port is not connected to the