| 01 May 2013 |
| Three Rail Train Detection, using a 9 Vac Wall Wart. |
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Train Detection Whistle Interface PCB
[ Completed - 'As Is', no support to be provided ] |
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| Schematic Diagram 01 |
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| Train Detection Whistle Interface PCB - Parts List |
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| Component |
Description |
Part Number |
Retailer |
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| C1 |
2200 uF, 16 Vdc Capacitor |
609490 |
Jameco |
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| C2 |
0.33 uF, 50 Vdc Capacitor |
138237 |
Jameco |
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| C3 |
0.1 uF, 50 Vdc Capacitor |
544921 |
Jameco |
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| D1 |
Full Wave Bridge Rectifier |
103034 |
Jameco |
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| D2, D3 |
1N4001 Diode |
35991 |
Jameco |
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| F1 |
0.5 A Fast Blow Fuse (4 Pack) |
270-1003 |
Radio Shack |
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| K1 |
5 Vdc, 0.04 A Relay |
174450 |
Jameco |
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| P1 |
2.5 mm Power male Connector |
101187 |
Jameco |
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| Q1 |
2N2222 NPN Transistor |
38236 |
Jameco |
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| R1 |
22 KΩ, 0.25 W Resistor (5 Pack) |
271-1339 |
Radio Shack |
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| R2, R3 |
10 KΩ, 0.25 W Resistor (5 Pack) |
271-1335 |
Radio Shack |
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| R4 |
4.7 KΩ, 0.25 W Resistor (5 Pack) |
271-1124 |
Radio Shack |
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| R5, R6, R7, R8 |
5 KΩ Linear Potentiometer |
255549 |
Jameco |
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| U1 |
PICAXE-14M2 |
PICAXE-14M2 |
Revolution Edu. |
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| U2 |
LM 7805 5 V, 1 A Voltage Reg. |
786138 |
Jameco |
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| Misc. |
9 Vdc, 1A Wall Adapter |
2099905 |
Jameco |
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Fuse Holder |
270-739 |
Radio Shack |
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Printed Circuit Boards (2 Pack) |
276-159 |
Radio Shack |
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Three Rail Train Detection - 9 Vac Wall Wart
[ Completed - 'As Is', no support to be provided ] |
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Although this Block Diagram shows the AC Ground of the Distribution PCB connected to the Lockon
of the Lionel Transformer, it can connect to any non-insulated outside Rail anywhere along the layout.
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Block Diagram 01
Includes Schematic Diagrams of Distribution PCB and Isolated Block Relay Board |
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| Distribution PCB and Wall Wart - Parts List |
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| Component |
Description |
Part Number |
Retailer |
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| F1 |
0.5 A Fast Blow Fuse (4 Pack) |
270-1003 |
Radio Shack |
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| P1 |
2.1 mm Power male Connector |
2144690 |
Jameco |
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| Misc. |
9 Vac, 1A Wall Adapter |
202198 |
Jameco |
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Fuse Holder |
270-739 |
Radio Shack |
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Printed Circuit Boards (2 Pack) |
276-159 |
Radio Shack |
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| Isolated Block Relay Board - Parts List |
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| Component |
Description |
Part Number |
Retailer |
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| D1 |
Full Wave Bridge Rectifier |
103034 |
Jameco |
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| D2 |
1N4001 Diode |
35991 |
Jameco |
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| K1 |
5 Vdc, 0.04 A Relay |
174450 |
Jameco |
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| R1 |
47 Ω, 0.5 W Resistor (100 Pack) |
661183 |
Jameco |
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| Misc. |
Printed Circuit Boards (2 Pack) |
276-159 |
Radio Shack |
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PICAXE-14M2 Source Code. |
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PICAXE-14M2 Source Code. |
| (Actual Source Code '.txt.' file, provided 'as is', is here.) |
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| PICAXE Home Page Link. |
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Track Crossing Two Track Train Detection Example
[ Completed - 'As Is', no support to be provided ]
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| The Wall Wart is a 9 Vac type. See Block Diagram 01, above, for the Isolated Block Relay Board Schematic. |
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| Block Diagram 02 |
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| Return to Three Rail Train Detection Main Page |
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Created: 12.05.2013, Modified: 12.05.2013
©2008 - 2099, Alle Rechte vorbehalten, SJWL |
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