![]() I have built this project to burn my small PIC's This is a serial programmer works on the RS232 ( PC serial port ), known as JDM Programmer, thanks to the site which contains the schematic and the programmer software. Circuit layout and guidance: software used: Components required: 1 Resistor 10k ohm (R1) 1 Resistor 1k5 ohm (R2) 1 Capacitor 100uF (C2) 1 Capacitor 22uF (C1) 4 Diode 1N4148 (D1,D2,D3,D4) 1 Diode Zener 5V1 (ZD1) 1 Diode Zener 8V2 (ZD2) 2 Transistor BC547 1 IC PIC16F682A (this PIC will receive the data you want) 1 DB9 Female Conector (only the 3, 4, 5, 7, 8 pins are used) No external power supply required. I made the circuit on the protoboard following the layout by Leon Heller. The software in your PC will do all the job in sending the information via Serial cable to your PIC's memory. Using a simple circuit controlled by Serial output, you can insert your source code right into your PIC16F628A. ![]() ![]()
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