The basic method of measuring frequency with single chip microcomputer is proposed, the causes of frequency measurement error are analyzed, and the application of single chip microcomputer frequency m
[i=s]This post was last edited by Junior Electrician on 2022-7-21 19:27[/i]Made according to this circuit diagram. Used to drive the backlight of a 4.3-inch TFT screen. Even without the screen connect
Feedback: It can be described as sending part or all of the output (voltage or current) of the amplifier circuit back to the input end of the amplifier circuit in a certain way. We sometimes call the
[i=s]This post was last edited by qwqwqw2088 on 2020-12-16 07:46[/i]Everyone knows that impedance should be continuous. However, as Luo Yonghao said, "There are always times in life when you step on s
[i=s]This post was last edited by jinglixixi on 2022-2-26 11:07[/i]DHT22 is a digital temperature and humidity sensor that works in single bus mode. Compared with DHT11, it has higher accuracy, up to