This design idea (DI) does exactly that by using asynchronous RS-232 to power and count pulses from a simple 10-kHz voltage-to-frequency converter (VFC). Getting only one bit of info from each 10-bit ...

There are hundreds of magazine stories that mention about how easy it is to swap an LS engine into an early Chevelle, Camaro, ...

Family trusts offer succession planning benefits but must adhere to capital controls. Wealthy Indians renouncing citizenship require smooth wealth transfers. Regulations must balance these needs with ...

Unused inputs can be connected to GND or VCC. However, I would recommend GND so there is no leakage current if connected to VCC. This keeps the supply current as low as possible.