A very simple programmer for PIC16F628/28A and PIC16F84/84A.
Schematic:
Components:
D1, 5.1v zener diode
D2, 8.2v zener diode
D3-D6, 1N4148
Q1-Q2, BC550c
L1, red LED
L2, yellow LED
L3, green LED
R1, 4.7k ohm
R2-R3, 470 ohm
R4, 2,2k ohm
R5, 10k ohm
IC1, 18 pin socket
X1, DB9 female
C1, 22uF/16v
C2, 100uF/16v
ok.
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