Ultraschall Füllstandsmesser Photos Prototyp-Seite auf Deutsch
Ultraschall Füllstandsmesser Photos Prototyp-Seite auf Deutsch

Photos

Here are the photos of my very first prototype (with ATmega162), a really hand crafted original...

Level meter display (case opened)
Display live (case opened). The seconds are blurred because of the long exposure time.

Level meter display, PCB wiring
Display PCB-wiring. The clearing primary/secondary is only about 5mm in the prototype which is too less for safety!

Level meter display, complete
Display complete. In the top left corner you can see the debug link (RS232) to the PC

Level meter display, disassembled
Display disassembled

Level meter display, component side
Display component side

Level meter sensor wiring
Sensor wiring

Level meter sensor component side
Sensor component side. The dirty scribbles on the label diffused from the PCB through the glue layer of the label. So do not use waterproof pens if you want to apply a label later...