Just say the word, and I'll have them in the mail in no time.Jens...can you make some PCB's for me ?
I have at least 5 of them, and my local supplier have more...But first I like to know whether u can get the LM78L05 regulator easily.
Mounting holes? 2 or 4?I attached the eagle file so u can board it. If you need any foot prints let me know.
The PIC is a 8 pin DIL package type. It is what I have
The LM7805 is T0-92 and so are the transistors.
Caps are SMD.
1K R's are SMD.
Other R's are 0.25W or 7.5mm hole distance types.
Pad's are Pad's used to hook up wires.
PCB needs to be as small as possible.
Cramp it in there.
Suggestions?I need to change the transistor package . If you can, get me any SMD type transistor u can buy from there, working voltage is 12V, Current needs to be around 500mA.
BCV 47 perhaps. Can handle high current and take some heat. It also have high hFE factor. And cheapSuggestions?
Anyone?
Thanks. I'll check it out.BCV 47 perhaps. Can handle high current and take some heat. It also have high hFE factor. And cheap
Like I said:"First take".Jens.
Sorry but the board is bigger than what I made using vero. I think I manage to do a 20mm by 20mm board with TO-92's.
Cramp it up. If you can put the SMD's just under the PIC. Get rid of any empty space.
One thing is important... Jens u need to be able to buy the transistor and the regulator from ur local store. Cause I will need them with the PCB's. I think you should know how much Qty I will need. LM78L05 for each PCB plus 10 more.
I rounded up some figure. I need to cut the cost down as I am leaving to the north again. I will be taking the PCB's with me if they arrive.
And the Transistor or what ever is used to drive the LED's, u can figure out how much I will need from the PCB plus add 20 more of it.
If you can try and see if you can reduce the board size by using TO-92 packages. here am going for BC types Tr's.
What ?Code can practical?
@ Jens.I was also thinking switching to To-92 transistors, and putting the through-hole resistors vertical.
Will the uC be in a socket? (Trying to buy some height.)The height of the finished PCB will be the DIL height. I don't have any room more than the height of the PIC package
Hmm... Yes, I understand what you mean. I can use a smaller resistor footprint, and you slant the resistor a bit. I'll give it a try.Vertical resistors is a no no....but slightly slanted resistors might do. Like when you bring the holes a bit close but not right next to each other ...get my point.
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by Jake Hertz
by Duane Benson
by Jake Hertz
by Duane Benson