September 2008

Ideal for keyless entry for doors in the car, home and industry, this Keyless Entry System includes a rolling code to provide high security. It also has two door knock..

Voice Recording Circuit HK828 and LM358 based on the supply voltage 9-14 volt DC Microphone with 45 seconds voice recording can be done recording the sound level rises to the..

It has many features such as charging screwdrivers, which are frequently used in technical services, programming a charging circuit designed for drills, and temperature control with LED indicator. Micro Controller..

Timing circuit is operating with high voltage Be careful. The supply of the control circuit is taken from the mains without isolation. Be careful when testing while making connections Microcontroller..

Carbon monoxide alarm circuit, which detects using the MQ-7-CO Sensor, operates on the PIC16F88 Microcontroller, the operating voltage is 12v dc, it detects carbon monoxide and pulls the 12v relay..

As far as I understand, the circuit is designed to be used in first aid training, it may be used for control in heart massage with a model in electronic..

Electronic muscle training, muscle stimulation devices were once very popular, the biggest reason is the affordable price I shared a different muscle stimulation circuit made with pic 16f84 before, this..

Bass Extender – Circuit consists of an opamp (TL074) and a few passive elements (resistor capacitor) supply voltage is 12..20 volts DC.. It is used to amplify bass sounds. The..

PID Temperature Controller Max232 PC via RS232 serial port connection can be made According to information I found PID Temperature Controller is accurate temperature control system i AT90S2313 control system..

The circuit has 1 ampere power adjustable between 1.3…22 volts, normally lm317t 1.2..32 volt adjustable can be used for some reason. If r2 is canceled and 5k is used instead..