Serial interface:
Get
the PCB file for
FidoCAD
.
Components list:
C1 = 100 nF ceramic
C2 = 100 nF ceramic
C3 = 100 nF ceramic
C4 = 100 nF ceramic
C5 = 100 nF ceramic
C6 = 10 µF - 10 V. electrolitic
R1 = 82 Ω ¼ w
D1 = LED
IC1 = Max 3232
modem/router serial pin:
Computer (DB9 female):
1 - Tx
2 - Ground
3 - + 3.3 V.
4 - Ground
5 - Rx
1 - Rx (2)
2 - Tx (3)
3 - Ground (5)
Join 1 + 4 + 6 e 7 + 8