For larger targets, the RACON 12 switches measure 12-mm square and have an operating force of 3.5N with a travel of 0.8 mm. Price for either series is $0.53 for a surface-mount version and $0.48 ...

Both the mini and sub-mini switches specify a current/voltage rating of 0.4A at 28 Vac/dc. NKK SWITCHES, Scottsdale, AZ. (480) 991-0942. Company:NKK SWITCHES Product URL: Click here for more ...

This isn’t some off-the-shelf foot switch, [Giorgos] made it from parts and pieces kicking around in one of his junk drawers. The foot pedal frame is made from acrylic sheet.

Before I did my project ,I went on to learn knowledge for a special pupose,like What are the common electronic components, How to make a high-quality PCB board and etc.