This circuit is from 1999 documentation. However, it can still be easily assembled, as all components used are common. The sensors can have their quantity increased, being connected in parallel.
A VCO or voltage-controlled oscillator, which uses only two of the LM3900 amplifiers, is shown in the...
In this circuit the 555 is configured as an adjustable timer for long intervals. The capacitor C1 can be...
June 2016 - It can be obtained from Mouser Electronics this new chip for motor control, motion,...