I need to wire a dip switch to 16F88

**broken link removed**

I need one V in for all the switches, but do I need individual pull downs for each switch or will a common ground do? I just need to have a 1 or 0 at the pins.

Well if you use PORTB for the DIP switch you can enable a built in weak pullup. Then just a common GND the other side of the DIP switch. Else use a 10K to 47K resistor on each input pin. I noticed you're in Brampton, if your ever in downtown Toronto drop by at Creatron Inc, give me some notice as I'm often there myself.

I'm using port B, so I can use a weak pull up, how do I do that?
Just ground the other side. Now that makes it quite simple, I like that. Let me guess, I write 1's on all port pins, and ground them on the other side... is that it?

Creatron, yes in fact, that's where I got my 88... and 873, and firefly and junebug, right by the U of T. I also bought a display for my next project. I was very happy to find that place, I was looking for pic programmers when I saw their sign, walked in, and found everything PIC in there. I go downtown every Saturday afternoon, I play bass in a bluegrass jam band from 2-7 pm, I can stop by on the way around noon, no problem. I'd like to meet you.

RobertD said:

I'm using port B, so I can use a weak pull up, how do I do that?

Click to expand...

Look at Page 18 of the datasheet. Also see Page 57. The OPTION_REG register, bit-7 RBPU enables the PortB pullups when cleared.

Each of the PORTB pins has a weak internal pull-up. A
single control bit can turn on all the pull-ups. This is
performed by clearing bit RBPU (OPTION_REG<7>).
The weak pull-up is automatically turned off when the
port pin is configured as an output. The pull-ups are
disabled on a Power-on Reset.

Click to expand...

Did that thanks.