https://www.lightup.com/case-of-2-2ftx4ft-led-wattage-adjustable-color-tunable-premium-backlit-flat-panel-xsd.html => lien cassé
https://www.lightup.com/2x4-flat-panel.html
https://amzn.to/3XMXdfc
http://mathematicalmachines.blogspot.com/2019/05/astrolabe-upgrade.html https://github.com/kb1dds/small_astrolabe https://github.com/kb1dds/large_astrolabe
explication de l'utilisation en vidéo ici: https://github.com/kb1dds/large_astrolabe
