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This kit is perfect for studying the use of a 555 timer in its astable mode, where it produces a square wave output. The frequency of which is adjustable via the variable resistor. The board has a choice of two outputs. The logic output can be used to drive another IC or a speaker can be connected so the tone is heard (e.g. a door bell). The push button switch connects to the reset line such that the IC is only active when the button is pressed.
This kit contains:
PCB dimensions: 40mm x 40mm.
Requires 3 x AA batteries and depending upon desired use a speaker, both available separately.
All prices are in GBP.