feat: Add PSUControl eWeLink plugin

Author: chrismin13

_plugins/psucontrol_ewelink.md

@@ -0,0 +1,88 @@
+---
+layout: plugin
+
+id: psucontrol_ewelink
+title: PSU Control - eWeLink
+description: Control your 3D printer's power supply using eWeLink smart switches (Sonoff, etc.) through the PSU Control plugin.
+authors:
+- Christos Miniotis
+license: MIT
+
+date: 2026-01-07
+
+homepage: https://github.com/chrismin13/OctoPrint-PSUControl-eWeLink
+source: https://github.com/chrismin13/OctoPrint-PSUControl-eWeLink
+archive: https://github.com/chrismin13/OctoPrint-PSUControl-eWeLink/archive/main.zip
+
+# Privacy policy for cloud service usage
+privacypolicy: https://github.com/chrismin13/OctoPrint-PSUControl-eWeLink/blob/main/PRIVACY.md
+
+tags:
+- psu
+- psu control
+- power
+- switch
+- sonoff
+- ewelink
+- smart home
+- automation
+- psucontrol subplugin
+
+compatibility:
+  octoprint:
+  - 1.3.10
+  
+  os:
+  - posix
+  - windows
+  
+  python: ">=3.7,<4"
+
+attributes:
+- cloud
+
+screenshots:
+- url: /assets/img/plugins/psucontrol_ewelink/settings_screenshot.png
+  alt: Settings Interface
+  caption: Plugin settings allowing device selection and credential configuration
+
+featuredimage: /assets/img/plugins/psucontrol_ewelink/settings_screenshot.png
+---
+
+Integrate [eWeLink](https://ewelink.cc/) smart switches (Sonoff, etc.) with [OctoPrint-PSUControl](https://github.com/kantlivelong/OctoPrint-PSUControl) to turn your 3D printer on and off remotely.
+
+## Features
+
+- **Cloud Integration**: Control any eWeLink-compatible device (Sonoff Basic, S26, etc.)
+- **Device Discovery**: Test connection and browse devices directly in OctoPrint settings
+- **State Sensing**: Real-time feedback on switch state
+- **Secure Credentials**: Passwords are encrypted locally using XOR obfuscation
+
+## Requirements
+
+- OctoPrint 1.3.10 or higher
+- [OctoPrint-PSUControl](https://github.com/kantlivelong/OctoPrint-PSUControl) plugin installed
+- eWeLink account and compatible smart switch
+- Active internet connection
+
+## External Services
+
+This plugin connects to the **eWeLink Cloud API** to control your smart devices. An active internet connection is required for all functionality. Your eWeLink credentials are transmitted securely over HTTPS to eWeLink's servers.
+
+The plugin does **not** collect or transmit any data to third parties other than eWeLink.
+
+## Setup
+
+1. Install via Plugin Manager
+2. Navigate to **Settings** → **PSU Control - eWeLink**
+3. Enter your eWeLink email and password
+4. Click **Test Connection / Get Devices**
+5. Select your device from the dropdown
+6. Save settings
+7. Go to **PSU Control** settings and select this plugin for switching/sensing
+
+## Troubleshooting
+
+- **Authentication Failed**: Double-check your eWeLink email and password
+- **Device Not Found**: Ensure the device is "Online" in the eWeLink app
+- **Connection Issues**: Check your internet connection; the eWeLink cloud must be reachable