I've assembled the circuit of the figure 1. on a solderless bread board (figure 2.).

The program PICpgm recognized the programmer but did not recognized the PIC12F1822 attached to it.

Looking on the internet suggests that the problem can be combinations of

• The PIC is damaged.
• The connections are wrong
• Wrong DC voltage levels on the programming pins of the PIC
• Need of adding additinal components on the programmer (like Caps and stuff)
• Wrong transistor connection (since the order of the pinouts could not be E-B-C looking the "face" of the transistor.)
• Wrong delay setting on the PICpgm configurations.

I have not tested the JSPVCv1 (JDM Serial Programming with Voltage Control version 1) with the PIC16F1824 given that the required programming voltage levels are pretty much the same. Annother reason is that i got lazy.

I have decided to reassemble the whole circuit and test it again. Sorry, I've missed to take screen shots of the Windows GUI with the message "JDM Programmer" at "COM1" but that does not give much information, does it?.

Figure 1. JSPVCv1 - Prototype 1 for serial JDM programmer with VCC control.

Figure 2. JSPVCv1 assembled