Lightning Detector Circuit and schematic This Do-it-yourself lightning detector circuit can be a especially sensitive static electricity detector which can supply an early warning of approaching storms from inter-cloud discharge properly prior to an earth-to-sky return strike takes location. An aerial (antenna) formed of the brief duration of wire detects storms inside a two mile [...]
sensor+pada+rangkaian+smoke+detector
Beeps if you leave open the door over 20 seconds This circuit, enclosed into a small box, is placed in the fridge near the lamp (if any) or the opening. With the door closed the interior of the fridge is in the dark, the photo resistor R2 presents a high resistance (up to 200K) thus [...]
It’s a simple metal detector design that has the quite good characteristics. the principle of operation which one differs from the classic schemes (BFO, transmit-receive known as “two-boxes” metal detector, inductive). The dynamic mode is used to find targets in interference environment. There is known from theory of signal filtration that if signal shape is [...]
This power supply circuit module is a compact, easy to build. It uses negative variable power supply module. This power module is ideal for powering any application requiring a DC supply at current levels up to 1.5A. CIRCUIT DESCRIPTION Diodes D1-4 form a bridge rectifier which converts the AC input voltage into a DC level. [...]
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, [...]
