Wow the engineering world with your unique design: Design Ideas Submission Guide The AC comparators ... The current from the power supply is supplied to the LEDs through a current-limiting resistor R2 ...

[Doug] pulls a signal from the 9V AC power before it hits the bridge rectifier, using a 100K resistor and a zener diode to protect the microcontroller pin. The code for that project comes as a hex ...

I need to look for changes on the scale of hours or days, so simply ac ... signal conditioning: Note the extremely flat response at higher forces within each range. Stepping back to think this ...

The gain limitation is even more challenging when lower supply voltages are used—for example, in battery-powered signal chains ... be achieved from external resistor matching.