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projects:powermiser [2016/03/14 20:26] |
projects:powermiser [2020/04/11 12:01] 127.0.0.1 external edit |
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| + | === Synopsis === | ||
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| + | Powermiser is a wall/bench mounted plate that provides a button you can push in a deadmans switch style to get 15mins of power from a GPO socket. Repeat presses will increase the timeout in 15 min increments to a maximum at any moment of 60min. Time remaining is indicated by 4 RGB LEDs and alarms sound at programmed intervals. Countdown can be increased to the maximum at any time. | ||
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| + | This aims to solve 2 problems: | ||
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| + | * Unused GPO's get turned off saving power | ||
| + | * Requires a person to attend the powered devices at a minimum of once per 60min, which removes ability for things like cnc devices or 3d printers to be left unattended. | ||
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| + | Timer settings might be customised per installation via dip switches or headers. | ||
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| + | === Parts List === | ||
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| + | * [[http://www.ebay.com.au/itm/Single-Double-Wall-1-2-3-4-Gang-Light-Switch-Power-Point-Socket-GPO-/370876681993?pt=AU_Building_Materials&var&hash=item5659f90f09&_uhb=1|Blank Wall Plate]] //x1// $1.95 | ||
| + | * [[http://www.ebay.com.au/itm/5-Pcs-N-O-2-Lug-Terminals-SPST-OFF-ON-Red-Momentary-Push-Button-Switch-/390867702865?pt=AU_B_I_Electrical_Test_Equipment&hash=item5b0187d451&_uhb=1|Red Momentary Switch]] //x1// $0.42 (To increase time) | ||
| + | * [[http://www.ebay.com.au/itm/10-Pc-AC-15A-250V-125V-20A-ON-OFF-SPST-Snap-in-Neon-Lamp-Boat-Rocker-Switch-/331236178728?pt=AU_B_I_Electrical_Test_Equipment&hash=item4d1f36fb28&_uhb=1|Red Toggle Switch]] //x1// $1.05 (For complete circuit isolation) | ||
| + | * [[http://www.ebay.com.au/itm/Solid-State-Relay-SSR-25DA-25A-250V-3-32VDC-for-Temperature-Controller-HOT-NEU-/360500084185?pt=AU_B_I_Electrical_Test_Equipment&hash=item53ef7abdd9&_uhb=1|SSR]] //x1// $3.74 | ||
| + | * [[http://www.aliexpress.com/store/product/P9834-F5-5mm-straw-hat-RGB-LED-with-P9823-chipset-inside-full-color-frosted-voltage-step/312912_1709721555.html|RGB LEDs]] //x4// $1.20 | ||
| + | * [[http://www.aliexpress.com/item/AC-90-240V-110-220V-to-DC-5V-1-5W-Voltage-Converter-300mA-Isolation-Switching-Power/1947181456.html|5V PSU]] //x1// $4.94 | ||
| + | * [[PowerMiser.html|CPU Attiny85]] //x1// $3.50 | ||
| + | * [Misc Electronic Passives] $2 | ||
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| + | **TOTAL: <$20ea** | ||