PSU cover with wlan-control (Script also suitable for controlling light and other appliances)

thingiverse

There are plenty of PSU cases already available on Thingiverse, but this one stands out for its built-in Wemos D1 Mini and relay-shield. This combination enables users to control their printer remotely using a smartphone, an Octoprint-plugin, via SSH, or a physical pushbutton. The design has been thoroughly tested with S-360-12 and S-500-12 printers. To get started, you'll need to place the Python- and Bash-script in the home folder (/home/pi/) of your OctoPi installation. Make them executable by running a command, then add 'source ~/run.sh' to bashrc or zshrc. This will allow you to use SSH commands like 'relais 1' to turn the relay on, 'relais 0' to switch it off, and 'relais 2' to toggle between on and off. The photos show an earlier prototype that was printed for testing purposes. For the final version, the 5V PSU and cable outlet have been redesigned. Here's a list of materials you'll need: - Wemos D1 Mini v3 and relay-shield: https://lolin.aliexpress.com/store/1331105?spm=2114.10010108.100005.1.a16c5aecufdEii - Hi-Link 5V/3W HLK-PM01 - Pushbutton switch, e.g., https://www.conrad.de/de/tru-components-gq-12b-n-vandalismusgeschuetzter-drucktaster-48-vdc-2-a-1-x-ausein-ip65-tastend-1-st-701257.html - IEC power socket: https://www.banggood.com/3PCS-220V110V-5A-Power-Outlet-Socket-With-Switch-And-6A-Fuse-For-3D-Printer-p-1161973.html?rmmds=myorder To mount the D1 Mini, you'll need two M2x10 screws with nuts or two 2.5mm self-tapping screws (which can be found in old radios). The hole for the switch has a diameter of 7mm and can be made wider to accommodate any switch. The 5V PSU is designed to be held by friction, but you can use tape or paper to secure it if needed. To mount the PSU, use M4x8 countersunk screws. The case has holes for M5 screws and can be mounted on 2020 or 2040 extrusions. A cutout in the bottom of the case provides access to the USB port. To prevent accidental contact with the solder joints of the relay-shield, you can place a piece of thick plastic foil (like those pesky blister packages) over the D1 Mini.