Here is a problem I encountered. The reason for the problem is that the pull-up resistor value is too large, causing the IO port level to be abnormal. Reduce the pull-up resistor value and the circuit...
[i=s]This post was last edited by cruelfox on 2019-11-22 08:27[/i] Continuing from the previous Analog Discovery 2 review (2) Sweep function test
I will show you some test examples of the frequency...
Light-controlled thyristorAuthor: Unknown Source: Unknown Added Date: 2004-12-29 1138Photo-controlled thyristor, also known as GK type optical switch tube, is a photosensitive device.1. Structure of l...
As shown in the figure, there are two sets of power supplies on the secondary side of the transformer, both of which are 12V. Why is one set of secondary sides adding a resistor to the ground, while t...
[font=微软雅黑][size=4][b]Introduction to McQueen[/b][/size][/font] [hr][font=微软雅黑][size=4] [/size][/font][font=微软雅黑][size=4] McQueen is a micro:bit programming car for maker education. It is mainly aimed...
It seems that more and more people in the forum are interested in this. My first card reader was developed using CM200. There is nothing special about the hardware development. CM200 has an internal a...