New kit announcement, Junebug (PICKit2 SE & Firefly)

blueroomelectronics · Oct 6, 2007

pickit2 se

Just putting the prototype through the paces and always enjoy the comments.

The PICKit 2 from Microchip is fast becoming an excellent choice for anyone starting with PICs. Although a genuine PICKit 2 is only $38 (digikey) so building a clone would not be very profitable (there is ebay PK2 clone from China for $10 but the shipping is $20 and you still need the USB cable)

So here's what we're doing at blueroomelectronics.

Junebug is a combination PK2 SE (Student edition 5V only VDD, a genuine PK2 supports 3.3V PICs) and an updated Firefly kit **broken link removed**
On a single small 115mm x 57mm PCB. The image below will be updated as the design is being drawn. It will also be BLUE

**broken link removed**
The Firefly schematic can be found on our site, but here's the PK2 schematic.
**broken link removed**
And yes it works great with both MPLAB and PICKit2 software.
Here's the hand wired prototype, (early version, works fine)
**broken link removed**

blueroomelectronics · Oct 7, 2007

pk2v021000.hex

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.

1. VR2, connects potentiometer2 to 16F88
2. VR1, connects potentiometer1 to 16F88
3. IRIN, connects IR receiver to PIC
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

hassan1980 · Oct 8, 2007

pk2v021000

blueroomelectronics said:
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.

1. VR2, connects potentiometer2 to 16F88
2. VR1, connects potentiometer1 to 16F88
3. IRIN, connects IR receiver to PIC
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

Would you please Uplaod the the hex file and the exe program?

blueroomelectronics · Oct 8, 2007

pickit2 eeprom

If you mean the firmware for the PK2 it can be downloaded free from Microchip.
**broken link removed**
The file you want is PK2V021000.hex

I used a 18F4550 in the prototype it's what I hand on hand. The 18F2550 is 28pin

Added after 1 hours 20 minutes:

Here's an almost complete 3D image of the Junebug PIC Lab.
The tutor is for a 18F1320 PIC
**broken link removed**

hassan1980 · Oct 8, 2007

download pickit2 2.5

blueroomelectronics said:
If you mean the firmware for the PK2 it can be downloaded free from Microchip.
**broken link removed**
The file you want is PK2V021000.hex

I used a 18F4550 in the prototype it's what I hand on hand. The 18F2550 is 28pin

Added after 1 hours 20 minutes:

Here's an almost complete 3D image of the Junebug PIC Lab.
The double row of socket pins are for either a 16F88 or 18F1320 PIC
**broken link removed**

dearfriend I appreciate your reply

I have a question :

At the first picture you post you use 18F2550

then at the second picture I saw that 18F4550 is used

would you please explaine more?

blueroomelectronics · Oct 9, 2007

pickit2 2.5

The 18F4550 and the 18F2550 have the same core, the only difference are the addition PORT D & E. I had a 18F4550 on hand so used that, it works fine.

hassan1980 · Oct 9, 2007

junebug (pickit2 compatible)

blueroomelectronics said:
The 18F4550 and the 18F2550 have the same core, the only difference are the addition PORT D & E. I had a 18F4550 on hand so used that, it works fine.

Mr. blueroomelectronics

If I used the schematic you post at the beginning and the hex file you mentioned I will got PICKIT2

is this correct or not?

I mean this schematic

**broken link removed**

blueroomelectronics · Oct 9, 2007

pickit2 16f88

That schematic is correct for the PICkit 2 part of Junebug. It's correct for the 18F2550. If you use a 18F4550 you must rewire the pins based on their functions.

hassan1980 · Oct 9, 2007

junebug ferrite bead

blueroomelectronics said:
That schematic is correct for the PICkit 2 part of Junebug. It's correct for the 18F2550. If you use a 18F4550 you must rewire the pins based on their functions.

Ok, dearfriend

would you please uplaod the source for the schematic because it has low quality

All replies are appreciated

blueroomelectronics · Oct 9, 2007

firefly pcb download

I'll be posting a complete version on my site in the next couple of days. That'll be the best place to find it.
If you just want to build a PICkit 2 the full schematic is in the user manual.

blueroomelectronics · Oct 10, 2007

irlm6402

The design is near completion the EEPROM has been removed in favor of a PK2 connector and EUSART + MSSP I/O connector.
So you can use the kit as a USB experimenter like this fellow.
**broken link removed**
**broken link removed**

hassan1980 · Oct 10, 2007

using pickit 2 uart too

blueroomelectronics said:
The design is near completion the EEPROM has been removed in favor of a PK2 connector and EUSART + MSSP I/O connector.
So you can use the kit as a USB experimenter like this fellow.
**broken link removed**
**broken link removed**

Dearfriend, I am still waiting to uplaod this schematic in high reselution I suggest to upload it as PDF or to put the source

**broken link removed**

blueroomelectronics · Oct 11, 2007

pic kit 2 pakistan

If you want something now then just download the PICkit 2 manual from Microchip, the full schematic is there and in high resolution too.

folks · Oct 12, 2007

junebug usb kit review

Hi blueroomelectronics
I see that you have not the two I2C memories.
Do you put in another sheet?
is it for the PID?
Thanks.

blueroomelectronics · Oct 12, 2007

junebug pk2

The I2C EEPROMs are currently not used in the PICkit2, there is always a chance they may use them in the future so I've made the pins available on the extended PK2 compatible header on the top.

Seems a few people use their PK2 as a USB test platform. There will be ICD pins under the 18F2550 for reprogramming if needed.

psmll · Oct 12, 2007

usart pic kit 2

Nice work blueroomelectronics.

I also like the PICkit 2, I made a simple clone (only VDD) some time ago to program the 10F222, because I had problems with my ICD2 clone.

I already solved the problem of my ICD2 clone, and I'm using almost daily a original ICD2, but I like a lot the PICkit 2 ;-)

blueroomelectronics · Oct 18, 2007

junebug pic schema

The PCB Artwork has been completed and the boards should be ready next week. Here's the Junebug mounted in a LAB-EASY prototyping kit. More images to follow.
**broken link removed**

Added after 5 hours 32 minutes:

And here's the BT-06L with optional breadboard installed. But the best part is yet to come.
**broken link removed**

rprodrigues · Oct 20, 2007

junebug pic firmware

Hi,

What software have you used to do the PCB artwork?

It's really great! Congratulations for your entire job.

Rodrigo

blueroomelectronics · Oct 20, 2007

pickit2 free shipping

Thanks, it's a program called SketchUp. And there's even a free version of it.
Here's the LAB-EASY secret, the thin 1mm PCBs can be assembled while mounted on the breadboard. Once you get it working you can solder it down and remove from the breadboard. The PCBs can also be cut with scissors. Amazing!
**broken link removed**

folks · Oct 20, 2007

pk2v021000+bl.hex

blueroomelectronics said:
Thanks, it's a program called SketchUp. And there's even a free version of it.
Here's the LAB-EASY secret, the thin 1mm PCBs can be assembled while mounted on the breadboard. Once you get it working you can solder it down and remove from the breadboard. The PCBs can also be cut with scissors. Amazing!

Hi
Good work. But I don’t understand some things about solder down.
I think, if I finish my prototype and then I want solder down, how I can do this if the breadboard keep hold the wires and I suppose can not rotate only the PCB.

New kit announcement, Junebug (PICKit2 SE & Firefly)

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