Hi guys,
of course. When I have more time I will present more pictures and more details of this Project.
Regarding on the picture it is no fork, it the display protection foil on the display which have some bubbles
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)
.
This week I was lucky cause a make a good deal to get an enclosure from metcase.
It is the unimet 6 I will use.
Some rare details of the project.
Two 5" nextion displays, each for one channel.
Two rotary encoders for mechanical enter of values.
Two cosel pba 300f-36 which can provide up to 36 volts at 10 amps.
These switching power supply's where controlled directly from my circuit so that the difference between in- and output voltage is max 1.5 volts.
Regulation of the entered voltage and current is analog and digital, cause this elaminates teparature drifts.
I want to have an exactly voltage 3 digits after decimal point. Even under load.
Using a 16 bit dac from analog devices it is the ad5689.
Using 24 adc from it it the ads 1256 for read back.
This components are all on one board.
Two of them where needed.
I must build the controller board with atmega25xx.
At the moment I use development board with atmega 16.
for the 5 volts of the controller board and power supply for the nextion displays I will use a small switching supply from meanwell 5 volts with 3 amps. The nextion consumes 500mA so.
Hope you have better overview what I'm working on.
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/wink.gif)
Cheers
Sven