Wireless turntable with camera trigger

thingiverse

Just follow the steps bellow. No coding required. The voltageregulator (xl4015) in the pictures is not needed. Just ignore it. //Parts needed: -Nodemcu v3 (lolin). -Raspberry pi (for user interface and camera control). -Nema17 stepper motor. -A4988 or similar stepper driver. If using other than A4988 you will need to set microstepping to 1/16 for the amount of steps/rotation to correlate with turntablecode and user interface. -6mm bearingballs (airgun pellets). -9v dc power supply. 15 m4x20mm screws and nuts. 9 m3x10mm screws and 1 nut. 4 m3x20-25mm screws. 0-5 m5 nuts (depending on configuration). //Printing instructions. layer height 0.2 is recommended for steep overhangs on bearingsparts. Also choose randomize seam in slicersettings when printing all bearingsparts. After printing: file/sand away any roughness inside bearingslots so the bearingsballs will roll smoothly and lubricate bearingsballs/bearingslot when assembling. //Other instructions. - Print parts and assemble turntable. - Configure ArduinoIDE for NodeMCU and add pubsub client by Nick O'Leary and esp8266 wifi libraries to library manager. - Paste turntablecode into Arduino IDE and upload it to Nodemcu. - Set up raspberry pi with latest raspberry pi os, for the turntables user interface and usb-camera control. The Raspberry will communicate with the turntable wirelessly. - Install Gphoto2 on the raspberry by copy pasting the command bellow into the terminal: (all at once, no need to separate the rows) wget https://raw.githubusercontent.com/gonzalo/gphoto2-updater/master/gphoto2-updater.sh && wget https://raw.githubusercontent.com/gonzalo/gphoto2-updater/master/.env && chmod +x gphoto2-updater.sh && sudo ./gphoto2-updater.sh - Install node-red on raspberry pi - Add some modules/nodes to the palette in node red: node-red-contrib-aedes node-red-contrib-hcl-interate-loop node-red-contrib-queue-gate node-red-dashboard - Import provided flow to node red. (turntable.json) - install samba (for file sharing) on the raspberry pi. https://pimylifeup.com/raspberry-pi-samba/ *In the samba configuring guide: replace "mkdir /home/pi/shared" with "mkdir /home/pi/photos". Also replace "path = /home/pi/shared" with "path = /home/pi/photos" - install Autohotspot on raspberry pi https://www.raspberryconnect.com/projects/65-raspberrypi-hotspot-accesspoints/183-raspberry-pi-automatic-hotspot-and-static-hotspot-installer *choose option 3. Reboot raspberry pi and connect your computer/smartphone to SSID:RPIHotspot with password:1234567890 You should now be able to access the user interface for the turntable with your webbrowser (exept maybe for google chrome) on the address 192.168.50.10:1880/ui Connect your camera to the Raspberry with USB cable and you should be ready to go. Just remember to choose number of images and cameradelay in the user interface or nothing will happen. If you want icons on the buttons like in the picture. You can add new ones inside node-red or: -install Apache2 Webserver https://www.tomshardware.com/news/raspberry-pi-web-server,40174.html -Download some picture/icons to the folder /var/www/html/ on the raspberry pi -Name them: camera.png, 360.png, stop.png, refresh.png, clockwise.png, counterclockwise.png I would also like to recommend Irfanview for image reviewing. It has a "hot folder" function that watches a folder and automatically displays the latest image in that folder. Please let me know if I made any mistakes with the design or with the instructions.