| Playing quiz-type games is a great occupation for long winter evenings, rainy Sunday afternoons and during lockdown. However, the fun ambien...
robvh (29)
| Find your way out of an electronic labyrinth
| This musical instrument was built for my children a couple of years ago. It is very simple and uses only standard parts. And – very importan...
| Hands on the buttons, who was 1989 worldchampion .... The player who presses first may answer; when the buzzer sounds, the answering time is...
| This simple electronic instrument contains a small number of standard parts and needs no on/off switch.
| For the control of the lighting around my home (and inside if I'm on hollyday) I used to rely on 4 mechanical timers. A replacement was need...
| Save time if you build a prototype with microcontroller and LCD. Because at least a part of such a circuit is the same you can often use the...
| Simple digital timer as NE555 killer in many application were accurate timing is required from seconds until hours.
| By using so called ladder diagrams one can build a PLC-program like a schematic diagram using relais like in the early days of automation.