This Design Idea combines a simple ISA-bus-resident interface circuit; a garden-variety PC; a high-resolution optical shaft encoder; and a PWM-controlled, 0.05-hp, brushed, permanent-magnet dc motor ...

At Alice’s (Bob’s) site, the simplified transmitter contains a laser source and an encoder. The encoder modulates the phase of the optical pulses. The modulation information of the encoder ...

1. This optimised analogue-conditioning circuit can avoid signal distortion caused by nonlinearities, and guarantee an optimum interface between the encoder and ADC. 2. shown is a normalised RC ...

An internal RC oscillator (or an external frequency source) and scanning circuit poll the X/Y switch matrix for switch closures. The open-drain column-scan outputs allow the use of external open-drain ...

[Rupert] got his V-USB/ATtiny85/rotary encoder circuit working, and at the expense of a ‘mute’ control, also added an awesome looking RGB LED ring powered by Adafruit’s Neopixels.