48 lines
1.5 KiB
Markdown
48 lines
1.5 KiB
Markdown
# pc-switch
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[](https://ko-fi.com/ajfriesen)
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ESPHome powered switch to turn on/off your PC.
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Just connect your power and reset front panel connector to appropieate pin pairs, power the ESP8266 and you can turn on and off your PC via home assistant.
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## Use cases
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- This can enbale voice commands via Google Home.
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- Hide your PC in a closet or on a shelf without the need to press the actual button. Your can just connect any other button via home assistant
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- Setup automation based on time, motion or the moon phase to power on your PC
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- No funky magic packets anymore with wake on LAN (never worked for me)
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- No addons with password access to your Windows PC
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## Powersource
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### Internal USB port
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Most motherboard can deliver power over USB when the PC is off.
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Needs to be configure in the BIOS.
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### TPM header
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Check your motherboard manual for a TPM header.
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Also check how much voltage the TPM header can supply.
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Then you can connect power and groud from the TPM header to the ESP8266
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## Parts
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- Optocoupler: EL817
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- Resistor:
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- ESP8266-12F from AZDelivery
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## Todo
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- [x] powering the ESP8266
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- [x] Power, reset and hard power off switch for PC in Home Assistant
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- [x] Protoype on breadboard
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- [x] Create first soldered protoype
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- [ ] Check for PC status (is the PC currently on or off?) Current design is a power a power toggle
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- [ ] Design PCB
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- [ ] upload PCB
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- [ ] Create 3D printed case
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- [ ] Maybe enable MQTT to control this device (without home assistant) |