Magic: The Mini-magic Switchboard should I make it a kit? - Page 12 - Electronic Circuits Projects Diagrams Free

blueroomelectronics · 2nd February 2008, 06:25 PM

The reason for the switches on RB4-7 is wake up on port change. You also get an easy to use interrupt if any of the switches are moved. The ICD will have no problem with the switches just make sure they are open when programming.

**3v0** · 2nd February 2008, 06:34 PM

Quote:

Originally Posted by blueroomelectronics

The reason for the switches on RB4-7 is wake up on port change. You also get an easy to use interrupt if any of the switches are moved. The ICD will have no problem with the switches just make sure they are open when programming.

I forgot

You can not use the switches on RB6-7 in debug mode.

One could do ifdefs to just use RB4-5 switches for debugging.

blueroomelectronics · 2nd February 2008, 06:41 PM

The 16F628A doesn't have debug anyway.
Microchip does make an ICD version of the chip on a header for about $24. I've used the 12F675 version with my Junebug and a small PCB header.

**3v0** · 2nd February 2008, 07:30 PM

Quote:

Originally Posted by blueroomelectronics

The 16F628A doesn't have debug anyway.
Microchip does make an ICD version of the chip on a header for about $24. I've used the 12F675 version with my Junebug and a small PCB header.

It makes sense for me to use the 16F88 in that is has debug.
Does the ICE give you a decent trace ?

blueroomelectronics · 2nd February 2008, 07:36 PM

Then the 16F88 will work like a charm, debug mode will disable RB6 & RB7 (read 0) You should be able to test your code with the remaing two switches.

**3v0** · 2nd February 2008, 07:53 PM

Quote:

Originally Posted by blueroomelectronics

Then the 16F88 will work like a charm, debug mode will disable RB6 & RB7 (read 0) You should be able to test your code with the remaing two switches.

It does.

Does thet ICE provide trace?

blueroomelectronics · 2nd February 2008, 08:14 PM

Quote:

Originally Posted by 3v0

It does.

Does thet ICE provide trace?

Yes, I've got the trace option 16K

**3v0** · 3rd February 2008, 06:28 PM

The wood box is from the dollar store. The battery holder has a resettable fuse. The switches are missing the washer that go between the nut and the wood. The lamp bases are flush with the box. The more classic looking lamp bases sold by Radio Shack are too large for the box and the switches.

The PCB is hanging by the wires. Not sure what if anything I am going to do about that.

I need to figure out how to color code the switches.

The camera needs some white in the image to get the color balance right.

blueroomelectronics · 3rd February 2008, 06:40 PM

Wow, looks great. I've gotta go to the dollar store!
Velcro the PCB

Colored marbles and little indents for the switches might work.

Hero999 · 3rd February 2008, 06:49 PM

How about making the switch caps out of polymer clay?
It comes in many different colours. The problem is it can be expensive but you could save money be just using white and colour it with food colouring.
http://en.wikipedia.org/wiki/Polymer_clay

**3v0** · 3rd February 2008, 07:03 PM

Except for the bulb and bases everything came from parts I/we had on hand. The SO does a lot of art/crafts. Whatever is used for the switch color indicator has to be in scale with the bulbs and switches. Unless a marble had a diameter less then the bulbs it will look out of place.

I was thinking about polyclay but since I want to get this done and there is none on hand it is not an option at this time. A second unit is in the works that will use the other bases and larger switches. Maybe it can use the clay as it is on the back burner.

Hero999 · 3rd February 2008, 07:21 PM

Paraffin wax?

Heat it up in hot water, mold to the desired shape and colour it using the same method as the bulbs.

**Krumlink** · 3rd February 2008, 07:49 PM

Yes, the wax covers sound like a good idea. Might be too brittle. What about that Latex tool dip stuff? You could probably just add food coloring to a small batch and change the color.

**3v0** · 4th February 2008, 01:35 AM

For the time being I am going to use colored thumb tacks. They are a bit hard to move but not so much as to be unusable.

**Krumlink** · 4th February 2008, 02:12 AM

Thats pretty "tacky" !

Hahahahaha

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2nd February 2008, 06:25 PM	(permalink)
blueroomelectronics	The reason for the switches on RB4-7 is wake up on port change. You also get an easy to use interrupt if any of the switches are moved. The ICD will have no problem with the switches just make sure they are open when programming. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

2nd February 2008, 06:41 PM	(permalink)
blueroomelectronics	The 16F628A doesn't have debug anyway. Microchip does make an ICD version of the chip on a header for about $24. I've used the 12F675 version with my Junebug and a small PCB header. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

2nd February 2008, 07:36 PM	(permalink)
blueroomelectronics	Then the 16F88 will work like a charm, debug mode will disable RB6 & RB7 (read 0) You should be able to test your code with the remaing two switches. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

3rd February 2008, 06:28 PM	(permalink)
3v0	The wood box is from the dollar store. The battery holder has a resettable fuse. The switches are missing the washer that go between the nut and the wood. The lamp bases are flush with the box. The more classic looking lamp bases sold by Radio Shack are too large for the box and the switches. The PCB is hanging by the wires. Not sure what if anything I am going to do about that. I need to figure out how to color code the switches. The camera needs some white in the image to get the color balance right. __________________ search engine for electronic parts Junebug USB PIC programmer kit., USB Bit Wacker, 3v0's Homepage The 15 Minute Printed Circuit Board! (+drill time)

3rd February 2008, 06:40 PM	(permalink)
blueroomelectronics	Wow, looks great. I've gotta go to the dollar store! Velcro the PCB Colored marbles and little indents for the switches might work. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

3rd February 2008, 06:49 PM	(permalink)
Hero999	How about making the switch caps out of polymer clay? It comes in many different colours. The problem is it can be expensive but you could save money be just using white and colour it with food colouring. http://en.wikipedia.org/wiki/Polymer_clay __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here.

3rd February 2008, 07:03 PM	(permalink)
3v0	Except for the bulb and bases everything came from parts I/we had on hand. The SO does a lot of art/crafts. Whatever is used for the switch color indicator has to be in scale with the bulbs and switches. Unless a marble had a diameter less then the bulbs it will look out of place. I was thinking about polyclay but since I want to get this done and there is none on hand it is not an option at this time. A second unit is in the works that will use the other bases and larger switches. Maybe it can use the clay as it is on the back burner. __________________ search engine for electronic parts Junebug USB PIC programmer kit., USB Bit Wacker, 3v0's Homepage The 15 Minute Printed Circuit Board! (+drill time) Last edited by 3v0; 3rd February 2008 at 07:05 PM.

3rd February 2008, 07:21 PM	(permalink)
Hero999	Paraffin wax? Heat it up in hot water, mold to the desired shape and colour it using the same method as the bulbs. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here.

3rd February 2008, 07:49 PM	(permalink)
Krumlink	Yes, the wax covers sound like a good idea. Might be too brittle. What about that Latex tool dip stuff? You could probably just add food coloring to a small batch and change the color. __________________ MechTronics World of Warcraft is a disease

4th February 2008, 01:35 AM	(permalink)
3v0	For the time being I am going to use colored thumb tacks. They are a bit hard to move but not so much as to be unusable. __________________ search engine for electronic parts Junebug USB PIC programmer kit., USB Bit Wacker, 3v0's Homepage The 15 Minute Printed Circuit Board! (+drill time)

4th February 2008, 02:12 AM	(permalink)
Krumlink	Thats pretty "tacky" ! Hahahahaha __________________ MechTronics World of Warcraft is a disease