Bullet Speed Meter | Homemade Chronograph

High quality PCB prototypes: 3D & CNC service: 🔥I wanted to measure the speed of my coilgun projectile. This device will use light and sensors to measure the muzzle speed of a bullet. It has a 3D printed body, works with Arduino and is easy to make. 🔀LINKS ------------------------------------- Full guide links: Part List: Schematic: 3D STL Files: Code: Occupy mars T-Shirt: 🤝SUPPORT ------------------------------------- Join my Arduino Course (Spanish): : Donate on PayPal: Help my projects on Patreon :