[i=s]This post was last edited by jinglixixi on 2021-3-25 09:54[/i]The RP2040 has an integrated A/D conversion channel and a built-in temperature sensor on channel 4 to detect the temperature inside t...
The common cathode digital tube is too dim. What driver can make it brighter? How should the circuit be connected? I connected an npn transistor, but the common cathode should be current-limited. If t...
Chapter 1: Indentation Tabs are 8 characters, so indents are also 8 characters. There are many weird styles that define the indentation format to be 4 characters deep (set to 2 characters!), which is...
I need to write a camera image acquisition program under Windows CE5.0, but I don't know how to call the camera's stream driver in C#. Please give me some advice! Note: It is WinCE5.0, not Windows Mob...
[i=s]This post was last edited by RCSN on 2020-5-10 21:39[/i]A while ago, the author helped others develop a simple and low-cost QR code recognition solution, using the STM32F407VET6+OV2640 solution, ...