NE555 timer sparks low-cost voltage-to-frequency converter

https://www.electronics-lab.com/ne555-timer-sparks-low-cost-voltage-to-frequency-converter/

by Gyula Dioszegi @ edn.com: In 1971, Signetics—later Philips—introduced the NE555 timer, and manufacturers are still producing more than 1 billion of them a year. By adding a few components to the NE555, you can build a simple voltage-to-frequency converter for less than 50 cents. The circuit contains a Miller integrator based on a TL071 along […]