Touch Switch


Cheap touch switch using transistor

This cheap touch switch circuit is the touch switch is updated from the original version. Which use IC to control the operation cause difficut for the electronics beginner. So this circuit is thought to are suitable because uses TR purely. When was broken also a simple repair. and More cost-effective equipment. But The application is […]



Simple Touch Switch Using 555 IC

This 555 circuit will activate a buzzer and turn on a LED lamp when you touch the probe. Here is the circuit’s schematic diagram: lf you touch the plates, the lamp and the buzzer will be activated for a predetermined time period. The time period is determined by 100k resistor and the 10uF capacitor. You […]


Touch Switch Activated Relay

This is a simple circuit of Touch switch activated relay. This circuit is used to turn on/off electronic relay using touch sensor. This circuit consist of two main parts, they are a decimal counter and an current amplifier circuit. This circuit is need a 5volts power supply. Here is the circuit: As the counter circuit, […]


Separate ON-OFF Touch Switch

This schematic diagram is about touch switch circuit.  Separate ON and OFF switch improves the ergonomics for safety, since the touching off button when the state is off doesn’t make the system acts in the opposite way: turning ON the system. This accident usually happens when we make wrong assumption of the current state about […]


Touch Switch Data Input Interface

This is an interface circuit for digital data input. This circuit consist of touch button, op-amp, diode, capacitor and resistors. Any conductor surface can be used as the touch probe, such as a machine-screw head having comparable area around 0.5-inch-square or similar area of any pattern on printed-circuit board. This circuit need a DC power […]


220V Touch Switch

This is a 220V Touch Switch circuit. This circuit is used as switch which turn off and turn on the the electronic device that is connected to the 220V home electrical installations. Here is the schematic diagram of the circuit: Part List R1 ……………………………… 2M2 R2 ……………………………… 10K R3 ……………………………… 1K R4 ……………………………… 2K2 R5 […]


Create music with ic UM66T

In the circuit basically usability base IC UM66T use sound of music sweet-sounding origin and be usable easily. It use just integrated one circuit and a loudspeaker , piezo buzzer , the small-sized , and have power supply 3V only. The detail is other of integrated number this circuit. The UM66T series are CMOS LSI […]


Touch sensitive to the melody alarm using UM66t

This is a fun, interesting. It can create the music enjoy listen to touch of a button to control metal. When our hands touch point. the Circuit will produces a musical sound by UM66T-IC1 out to peizo speaker immediately. This circuit use very little amount. Suitable for beginners. or Parents and children together to build […]


Musical Bell with Touch Switch

Here the circuit diagram of musical bell with touch switch and timer. This circuit is designed around CMOS IC CD4011 which work as the delay timer and IC UM66 which is well-known musical sound generator. When touch plates are bridged (touched) by hand for a moment, the circuit will start to produce music sound. Just […]