How to make a JDM Programmer

This JDM programmer works with a RS232, 9-pin(9 wire) DB9 Serial connector on your computer, and is used for loading Source Code (hex files) into your microcontroller. JDM programmers are Cheap and very easy to make. JDM programmer that we are going to make will be used for loading the code into microcontroller board. You can probably buy this JDM
How to make a JDM Programmer - schematic

Online or from some Electronic store but if you are going to make one for yourself then, total spending for all components and board will cost you less than half of the actual price of the JDM that you will get in any electronic store. This jdm programmer responds, or lets us to burn the program into the microcontroller chip through small software known as winpic800. Winpic800 is compatible with pic18f4550 and JDM serial programmer. It works with lot of other hardware too, which are similar to JDM programmer, like the [GTP-USB] but it costs around 60 ‚¬ from their official website. So it`s a good option for beginners to stay with JDM programmer as cheap alternative in the early stages. Later for a better programmer I recommended pickit3 from microchip which makes it easier to program with a USB port. As of now with this JDM programmer we are going to program PIC18F4550 USB Interface Board for FIRST TIME BURNING OF CODE INTO THE CHIP This JDM programmer uses RS232 DB9 port to program the code into the microcontroller. I recommend do not use a laptop for JDM programmer. Usually now a days laptop`s does not comes with a DB9 serial port, so if you are thinking to use a USB to DB9 converter cable for doing this job then its a bad idea. Don`t even think about USB to DB9 converter, it just won`t work. So I recommend use a Desktop Computer which comes with an inbuilt DB9 Serial port. If you are thinking of a USB programmer then...

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