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Old 6th October 2007, 04:32 AM   (permalink)
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Hopefully 3 weeks should be ready.
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Old 6th October 2007, 05:13 AM   (permalink)
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awesome!

I cant wait to get my hands on one.

I will have to talk to my C teacher to see how many he will need...
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Old 7th October 2007, 04:07 PM   (permalink)
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It's coming along nicely, you'll have to refresh your browser to see the board (should be blue) in the first post.
Notice it's also a new size 115mm x 57mm, compatable with the LAB-EASY prototyping system (I'll post a photo, I'm sure most will want one)
The dipswitch IMHO is better than using jumpers as you can't lose them!
Here's what it does. There is one jumper but it should be very rare to use, the bootloader to reflash the programmer part if a firmware update goes bad.
  1. VR2, connects potentiometer2 to 16F88
  2. VR1, connects potentiometer1 to 16F88
  3. IRIN, connects IR receiver to 16F88
  4. TX, connects 16F88 UART to PICKit 2 UART test (very cool feature)
  5. RX, connects 16F88 UART to PICKit 2 UART test *
  6. I2P, connects 24LC64 EEPROM to PICKit 2 EEPROM programmer**
  7. I2T, connects 24LC64 to 16F88 SSP (only a partial master)**
  8. Tutor, connects 16F88 to PICKit 2
* uses PK2 software, does not work while debugging
** it should be possible to set the 16F88 up as an EEPROM emulator

PS I'll squeeze a 18F1320 socket (dual with 16F88) so you can also use Junebug as a 18F trainer with C18 (Free student edition) or Swordfish BASIC. Refresh your browser and you'll see the double socket in the first post image.
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Last edited by blueroomelectronics; 7th October 2007 at 05:39 PM.
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Old 8th October 2007, 05:12 PM   (permalink)
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And here's the Junebug in 3D
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Old 8th October 2007, 05:43 PM   (permalink)
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Bill,
Like usual: the kit is looking excellent!
Horrayy!
-Omar
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Old 8th October 2007, 06:06 PM   (permalink)
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Thank you Omar, now the parts placement looks ok, I'll start routing the PCB (no autorouter, all by hand)
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Old 8th October 2007, 10:05 PM   (permalink)
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Could you maybe put pads under that dip switch so that we have the option of using 0.1 inch headers and jumpers instead of an expensive DIP switch, please?
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Old 8th October 2007, 10:59 PM   (permalink)
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Quote:
Originally Posted by blueroomelectronics
And here's the Junebug in 3D
I love it... Excellent...

Always dream to build in 3D prototype..how long u take to build this 3D?
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Old 8th October 2007, 11:08 PM   (permalink)
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Quote:
Originally Posted by alamy
I love it... Excellent...

Always dream to build in 3D prototype..how long u take to build this 3D?
You don't want to know, Bill is the 3D master!
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Old 8th October 2007, 11:26 PM   (permalink)
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Quote:
Originally Posted by Mike, K8LH
Could you maybe put pads under that dip switch so that we have the option of using 0.1 inch headers and jumpers instead of an expensive DIP switch, please?
Good idea, I'll add them

Added refresh the browser to see it.

The Junebug only programs / debugs 5V parts including many EEPROMs. The genuine PICkit2 has the clamps and programmable VDD parts for 3.3V PICs.

Just testing the Junebug 16F88 using the UART Tool in the PICkit 2 software, this is all possible by only turning off the Tutor switches and turning on the TX & RX switches.

And about the 3D drawing thanks, they did take awhile but since I have a large library of parts it now only takes a couple of hours.

The last photo is some of the LAB-EASY boards. These are teriffic for prototyping with breadboard.
Attached Images
File Type: png PK2 UART Tool.png (29.3 KB, 12 views)
File Type: png PK2 Main.png (39.0 KB, 10 views)
File Type: png PK2 Families.png (40.8 KB, 8 views)
File Type: png PK2 EEPROM.png (35.9 KB, 6 views)
File Type: jpg LAB-EASY.jpg (78.1 KB, 26 views)
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Last edited by blueroomelectronics; 9th October 2007 at 12:20 AM.
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Old 9th October 2007, 01:27 AM   (permalink)
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Bill where do you get your blue proto boards and how much do they cost?

I cant WAIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!
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Old 9th October 2007, 02:26 AM   (permalink)
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Well if you make hundreds or thousands of PCBs they can be pretty cheap. The blue or any color aside from standard green adds about $0.50 to each PCB. Other cool standard colors are Red, Black, Yellow, White.

Get yourself a 18F2550 and either 16F88 or 18F1320.
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Old 9th October 2007, 02:43 AM   (permalink)
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I've been reviewing the 18F1320 and 16F88 pinouts with the firefly and I may remove the 16F88 option from the design. The two PICs have very different hardware I/O options.

Opinions?

Edit the images have been updated to show the new design. The 18F1320 has no MSSP or SSP so I disconnected it from the EEPROM (also makes it a more common 8 position dip)
It is (the EEPROM) still connected to the PK2 and may have to be removed when not in use.

If you want a 16F88 tutor the original Firefly will work with this kit too.
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Last edited by blueroomelectronics; 9th October 2007 at 03:29 AM.
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Old 9th October 2007, 04:17 AM   (permalink)
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The 18F family has the advantage of a dominant single compiler. (no proof) The student version Microchip C compiler. It makes documentation/support for C much easier.

Three breakpoint are nice to have on board used for teaching/learning/experimenting.
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Old 9th October 2007, 07:42 AM   (permalink)
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Thanks 3VO, now should I keep the 24LCxxx socket? It's strictly for programming via the PK2, no longer used by the Tutor.

I could squeeze the 6 pin PK2 connector in there instead.
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