Here’s a alarm clock circuit based on PIC Controlled. Two circuit boards put together a simple PIC based design comprising of two interlinked vero-board cards. The larger of the two circuit boards holds the 5V power regulator, the display processor (a PIC 16F74), the real time clock (Dallas DS1307), 3V backup battery and buzzer. See [...]
tesla+coil+24v+motor+circuit
Skema Rangkaian Kompas Digital Compass Digital Specifications: · Power: 5-18 volts DC @ 30 ma · Inputs: Earth’s magnetic field · Outputs: Open collector NPN, sink 25 ma per direction, digital output 1 or 0 · Size: 12.7 mm diameter, 16 mm tall · Temp: -20 to +85 degrees C · Provides 8 headings (N, [...]
A milliamp meter can be used as a volt meter by adding a series resistance. The resistance needed is the full scale voltage reading divided by the full scale current of the meter movement. So, if you have a 1 milliamp meter and you want to read 0-10 volts you will need a total resistance [...]
Here’s a simple home alarm circuit is for those who are eager to know the concept of home security system. It consists of three 555 timers gets the input from a contact that could be connected to a motion detector or any momentary contact that monitors a certain process. Once the contact is momentarily closed, [...]
Make a sound card is no more a complex issue. If you use great IC PCM2702 from BURR BROWN / Texas Instruments you can create a fully functional USB sound card. This sound card can be powered from USB port and has one stereo output. You don’t need to install any driver for Windows XP [...]
