The free Eagle program has all of the symbols. I had some time so I
started the schematic.
But, I asked about pin 8 because the schematic shows it as a control
signal AND connected to Vdd.
I wonder also about the PNP transistors, should probably be NPN. Is Vdd
really a battery?
Not a showstopper, but do you really need all three shift registers?
Plus, I would throw in a pair of small caps onto the crystal.
And those feedback resistors still bug me (the RX433 bothers the shift
register?). Power decoupling is needed, too.
I presume all DIP packages and big LED's? I don't mind helping, just
have to have details.
mickeym
kaytea2k wrote:
>Nope Pin 14 is for power. But the feedbak resistors are there
>because the receiver gives some interference.
>
>--- In Homebrew_PCBs@yahoogroups.com, mickeym <whitemouse@m...> wrote:
>
>
>>Looks like a wireless to IR relay. Questions:
>>Is pin 8 of the PIC supposed to be connected to Vdd?
>>What's with the feedback resistor on the shift register?
>>
>>mickeym
>>
>>