When a button is pushed down and held, the R5C2 time constant begins running. About a half second later, if the hold is still being held, the U1b multivibrator starts up, generating auto-repeating pulses at roughly 4 Hz for as long as the hold-down contin
| Authors | Stephen Woodward |
| Main Document | Article «Finger-friendly DPOT pushbuttons do ups, downs, and dittos» |
| Description | Figure 2 |
| File Format / Size | PDF / 16 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «Finger-friendly DPOT pushbuttons do ups, downs, and dittos»
- Figure 1. In this reference circuit, Schmidt trigger U1 senses and de-bounces UP/DOWN momentary contact pushbuttons to (tediously) move the U2 setting by one position per push
- Figure 2. When a button is pushed down and held, the R5C2 time constant begins running. About a half second later, if the hold is still being held, the U1b multivibrator starts up, generating auto-repeating pulses at roughly 4 Hz for as long as the hold-down contin