View Full Version : PIC 18F4685 programmer?

09-23-2008, 08:57 PM
I'm a beginner in using PIC. (actually in microcontrollers also).
I've been searching a lot for ICSP programmer schematics and found quite a few too. But all of them have a common problem - they probably wont work with a USB-serial converter.
I need the programmer to be able to connect to a laptop (preferably thru a USB port as my friend's laptop doesnt have serial port otherwise thru serial port which my dad's old laptop has)
On some site i also read that even if the laptop has serial port, it wont be able to give enough power as a desktop can.

Also, 18f4685 isnt listed in supported devices in many of the programmer circuits i got. like http://hamradioindia.org/circuits/feng.php and

On PicPGM's site (http://members.aon.at/electronics/pic/picpgm/hardware/index.html#USB_PROGRAMMER) they have given a USB programmer which has listed 18f4x8x as supported and i was very happy to see it but the FT245BL ic they have used in it isnt available here locally.

I want to be able to program the PIC on the fly using a laptop (preferably thru usb). I'm sure everyone has to do this as its crucial in robotics competitions. Please suggest some programmer.

09-24-2008, 12:50 AM
why only this version of pic ??? and i believe feng's programmer should program it, but wont in the case of USB driven ports or laptops.

You should try for a ICD2 clone , schematics are available on internet

09-26-2008, 12:06 AM
If you are looking for peace of mind: invest in a PicKit2


09-27-2008, 12:12 AM
This pic coz I bought i already. I'll do the study on the ICD2 clone thanx.

Where can i get PicKit2? What's its price in INR locally?

09-27-2008, 12:20 AM
PicKit2 is not available locally. You can buy one from the MicrochipDirect website. The total cost (including taxes,shipping) in INR is close to 2500 and is delivered within a week.


09-27-2008, 12:53 AM
hmm, thanx. Looks a bit far-fetched for me right now but i'll look into it later.

09-27-2008, 02:08 PM
Well for a beginner other 16f series would have been better, anyway try winpic800 software coupled with some diy programmers for the support of the pic you mentioned.