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Based around an atmega32, the control board will control a solid state relay connected to a 2Kw heater inside my mash tun. The controller will also be connected to a pump that circulates the mash all the time. A ds18b20 is used to read the temperature to see if the heater will be on or off.
Data is displayed on a hd4478 compatible display.
So, finaly som progress :) I managed to get version 2 of my pcb done and solderd all of the components to it. It is not the prettiest pcb but then again it is not the ugliest either. And I love it lika a mother loves a child ;)
Here it is right after etching. Some issues (obviousely) still remain to be fixed with the process but overall it is ok.
And here it is after soldering.
Next step is to verify it actually works! Connect it to the programmer and upload firmware...
So, what has happened since...well... since ever? It turns out i had a major brain fart when i designed the pcb. For some reason i used an atmega8515 for the eagle schematic and then used an atmega32 when i soldered the circuit. Not good. Well, after banging my head in the wall for some minutes i managed to "hack" the pcb to actually get it working. But then i decided to redo the pcb. And this is where the shit really hit the fan. I have tried 5 times to get a nice pcb (etching my own at home). Any how, i am not giving up, just need to find a stable process for manufacturing my own pcb :) Oh the joy!
Androiders
Mrinnovative
Anas Raza Khan
Electorials
Solderking