when I try to use the curser keys on the TD, it doesn;t work

Betel

Hi,

look at my solution of a comfort version of key inputs:

Cursor key can only used as sort puls inputs, external key can usedas long holded key inputs and so the circuit can workas auto pulser if external key is on a longer time.

The input range can set by parameters and over the mux and the amplifivers the input values can scaled od translated...

For your application to output a range from 0 to 1000 (for analog output modul) this can used to define Gain = 10 and so you must not input 1000 steps - then the input range is 100 steps for the hole range 0..1000....

The cirkuit at the attachment isbuilded as a complete circuit and can reduced....

I don´t know if the Fi-key can hold and then the program get a longer puls or if the Fi-kes only put a short puls to the circuit - please test it. External key replase with F-keyand in the other case cursor key replace with F-key...

Best regards
Betel
Attachment:DEMO_TasterEingabe_eines_Wertes_aus_einem_Bereich.zip (99 Downloads)