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a development board with an embedded PC
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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Component list
R1,R2 =47Ohm
R3 =220Ohm
R4,R5 =4kOhm 7
P1 = 10kOhm preset
Capacitors:
C1 = 10nF
C3,C8.-C18 = 100nF
C4-C7 = 10µF 16V radial
C2 = 100µF 16V radial
Semiconductors:
D1 = LED, green
IC2 = 74HCT573
IC4,IC6 = 74HCT574
IC3 = GAL16V8 (programmed, order code 010036-31)
IC5,IC7 = 74HCT541
IC8 =7805
IC9,IC10 =MAX233CPP
IC1 = IPC@CHIP SC12 (order from Beck, http://www.bcl-online.de)
Miscellaneous:
PC1,PC2 = solder pins
TR1 = FS22-101Y4 (order from Beck, http://www.bcl-online.de)
K1 = 6-way Mini-DIN socket (female), pins at 240 degrees, PCB mount
K2 = RJ45 socket (female), PCB mount
K3,K4 = 9-way Sub-D plug (male), PCB mount, angled pins
K5 = 14-way boxheader or pinheader
K6,K7 = 20-way boxheader or pinheader
K8 = 26-way boxheader or pinheader
Enclosure:
PCB, order code 010036-1
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