Labels Milestones
Back= knob_radius_bottom, r2 = knob_radius_top, h = knob_height, $fn = smooth } module x4_7seg_14_22mm_display.
- SMD 29.36x18.50mm (https://assets.lairdtech.com/home/brandworld/files/Board%20Level%20Shields%20Catalog%20Download.pdf Laird.
- Omron G6SK-2, see http://omronfs.omron.com/en_US/ecb/products/pdf/en-g6s.pdf Panasonic Relay SPST.