1Hz generator with versatile 555
With this circuit it is possible to obtain a clock of approximately 5V@1Hz for digital and analog projects. This circuit works with an AC input voltage of 100-240 VAC. You can use it for any application, both analog and digital. The circuit uses a transformerless (capacitive) source, full-wave rectification, zener regulator, a 555 mode oscillator, and a trimpot for fine tuning. A simple way to create a TTL clock generator with few parts, easily accessible, without needing to program anything, just with a soldering iron and just using good old analog electronics.
1Hz generator with versatile 555
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
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for issues caused by unsuitable parameter selections.
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