flo/WiFiPCRemote
Watch
1
0
Fork
You've already forked WiFiPCRemote
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
ESP8266 based WiFi connected remote control for PC power and reset button with status feedback from power LED. Controllable via Web, HTTP-API and MQTT.
3 commits 1 branch 0 tags 2.4 MiB
  • C++ 80.9%
  • HTML 19.1%
Find a file
Exact
Repository files (latest commit first)
Filename Latest commit message Latest commit date
flo f59312df4d 'CHANGELOG.md' ändern
2020-01-02 18:33:48 +00:00
Hardware initial check in. mostly feature complete. 2020-01-01 19:39:23 +01:00
Software v0.1.1 - 2020-01-02 2020-01-02 19:31:31 +01:00
CHANGELOG.md 'CHANGELOG.md' ändern 2020-01-02 18:33:48 +00:00
README-DE.md v0.1.1 - 2020-01-02 2020-01-02 19:31:31 +01:00
README.md v0.1.1 - 2020-01-02 2020-01-02 19:31:31 +01:00

README.md

WiFiPCRemote

ESP8266 based WiFi connected remote control for PC power and reset button with status feedback. Controllable via Web, HTTP-API and MQTT.

Developed as a more reliable alternative to Wake-on-LAN with extra features such as force Power-Off and status feedback. WoL is unreliable in my experience. When the PC has been cut from power, it does not work at all.

A simple solution would be connecting the PC power cable to a WiFi-Socket, but this has some disadvantages. Therefore the Restore Power State BIOS setting has to be set to Always On. This could lead to the PC running unintendedly for a longer time after a power outage. In addition to that, it can lead to data loss if the PC is in cut from power while being in sleep mode.

So i decided to build a PC remote control based on the ESP8266 MCU. The module is powered either from the +5VSB line of the ATX PSU, from a standby powered USB port, or from an external power supply. Connections to the PC hardware a simple - only some transistors and resistors.

The module itself can either be built directly inside the PC case or as an external module. I prefered the latter in order to have no issues with WiFi connectivity. I used a slot bracket with DSUB 9 pin connector (female version to avoid it being mistaken as a RS-232 port) and added a cable with suitable connector to the module.

Functions

  • remote control a PC by actuating its power and reset button
  • detection of PC´s status (on, sleep, off) by observing the power LED output (on motherboards that blink the power LED when in sleep)
  • perform short press (Power On/Sleep) and hold (Force Power Off) on the POWER switch
  • perform reset switch action
  • controllable and status reporting via web interface, HTTP-API and MQTT
  • directly supports Home Assistant MQTT switch and sensor devices, so that Home Assistant can easily be set up as the frontend
  • WiFi setup with captive portal
  • fully configurable via web interface
  • OTA Firmware Update

Connections

  • power supply: either from ATX PSUs +5VSB line, an USB port with +5VSB supply or an external power adapter
  • motherboard terminals: POWER switch, RESET switch and POWER-LED