Touch Delay TDL-555 Timer with LEDs – Educational D.I.Y. Kit
This is a DIY kit that comes with all the components you need to assemble and solder a touch-triggered 555 timer. The circuit board is a single-sided through-hole design meaning you must solder only on one side of the board. The assembly is easy for average electronic gurus. All you need to have is basic soldering tools and a power supply.
The NE555 chip is designed to output a square wave pulse based on the resistor values of the voltage divider and the capacitor values.
This circuit is designed to work with a 5 Volt input voltage. It requires a low input current to function. It handles up to 90mA. The delay can be adjusted using a potentiometer and the LEDs are there to help you visualize the process. To trigger the delay, the corner of the circuit board should be touched with a clean finger.
To see the assembly instructions, refer to the included paper in the product or download the manual from under the "Attachmnts" tab.
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