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Model railway gate with a servomotor and ATtiny24

An ATtiny24 controls a PCM servomotor to open and close the gate.

gerhard-schmidtGerhard Schmidt
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In this project an ATtiny24 controls a servomotor using pulse coded modulation (PCM) to open and close a model railway gate with two switches. Upper and lower gate position as well as the speed can be adjusted with three potentiometers. Very flexible, few electronic components and high relaiability. See for more details.

signal_speed_regulation.jpg

The effect of the speed regulation for open/close timing

JPEG Image - 83.43 kB - 04/25/2018 at 12:20

Preview

gate_tn24_comp_v3.jpg

The component placement on the 40-by-50 mm PCB

JPEG Image - 53.16 kB - 04/25/2018 at 12:20

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gate_tn24_schematic.jpg

The hardware scheme

JPEG Image - 144.50 kB - 04/25/2018 at 12:20

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gate_tn24.jpg

The hardware

JPEG Image - 127.98 kB - 04/25/2018 at 12:20

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