For portable devices, power management is a very important and critical component. Power management ICs are usually divided into integrated and discrete types. The integrated type is also called a pow...
First, you need to prepare a serial port to 3.3v TTL level conversion board. If your computer has a serial port, you can use MAX3232 to solder one. If you don't have a serial port, you can use a USB t...
Dear forum members, I have a spartan-3E with two rs232 serial ports, one for communication with the host computer and one for output control of other devices. Is this possible? There was a post saying...
[font=黑体]This is a power outage emergency lighting circuit. Although it is relatively old, it is found that many emergency lights are still in use. Now I post the circuit for everyone to appreciate. [...
For smokers, having cigarettes but no lighter is the most frustrating thing. With a "mobile phone with a cigarette lighter", you can completely get rid of the lighter. The special thing about this can...