The State Administration of Radio, Film and Television and the State Administration for Industry and Commerce issued a notice on the 19th, requiring the rectification of radio and television medical i...
1. Circuit parameters
1. Charging power source: If it is a USB power source, the rated voltage is 5V.
2. Determine the capacity and voltage parameters of the battery to be used. If you use 18650, you ...
Do you know what the reason is? My file name and directory are correct, but now it gives an error. I have been busy for a long time but still can't solve it....
It seems like earthquakes are happening everywhere. Sichuan just experienced a magnitude 6 earthquake, and Japan was hit by an earthquake and tsunami. The loudspeaker warning during the Sichuan earthq...
[align=center][b][GD32E231 DIY Contest] 06. Automatic Fish Feeding Robot - ADC/DMA/TIMER0/Serial Port [/b][/align] [align=left][b]Here, a photoresistor is used to monitor the light intensity around th...
[i=s]This post was last edited by wangerxian on 2022-6-1 13:31[/i]I recently used an MT3608 boost switch chip, but found that it could not be completely powered off. After the EN pin was pulled low, V...