Rail Router
model train routing with a PC
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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
Resistors:
R1 = 4kOhm 7R2,R3,R4 = 10kOhm
R5 = 47kOhm
Capacitors:
C1,C2 = 22pF
C3-C7,C9 = 10µF 25V radial
C8,C11,C12 = 100nF
C10 = 1µF 16V radial
Semiconductors:
IC1 = PIC16F877-20/P, programmed, order code 030403-41
IC2 = MAX232
IC3* = 74HCT241
IC4 = 7805
Miscellaneous:
JP1,JP2 = jumper
K2-K16 = 3-way SIL pinheader
K17 = 9-way sub-D socket (female) angled pins, PCB mount
K18* = 10-way boxheader
K19 = 2-way PCB terminal block, lead pitch 5mm
X1 = 8MHz quartz crystal
PCB, order code 030403-1 (see Readers Services page)
Disk, all project software (PIC & PC), order code 030403-11 or Free Download
* only required when a Slave Router is connected
Slave Router
Resistors:
R2,R3 = 10kOhm
R5-R8 = 47kOhm
Capacitors:
C1,C2 = 22pF
C9 = 10µF 25V radial
C12 = 100nF
C10 = 1µF 16V radial
Semiconductors:
T1 = BC550
IC1 = PIC16F877-20/P, programmed, order code 030403-41
IC4 = 7805
Miscellaneous:
K1-K16 = 3-way SIL pinheader
K18 = 10-way boxheader
K19 = 2-way PCB terminal block, lead pitch 5mm
S1 = 3- or 4-way DIP switch
X1 = 8MHz quartz crystal
PCB, order code 030403-1 (see Readers Services page)
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