Digital calipers have been upgraded by [Limi DIY] to measure distances of up to 650 mm by retrofitting the processing element onto a custom track. This innovation allows for a multi-axis digital readout, proving useful for machine tools like manual lathes or milling machines. The calipers function based on variable capacitors, where changing the surface area between conductive plates linearly affects capacitance. By embedding an array of parallel plates into a printed circuit board, a linear displacement sensor is created, as demonstrated by [Limi DIY].
In a separate project, [DuctTapeMechanic] combined sports and electronics by adding a punch counter to a speed ball punching bag during restoration. Using a capacitance proximity sensor typically found in industrial automation, each punch is detected as the bag nears the sensor. This innovative method, along with repurposed materials like a discarded metal bed frame for the bag’s frame, showcases a sustainable approach to DIY projects. Similarly, [Marcus] detailed his experience using the AD7746 capacitance sensor with an Arduino, rewriting the code for better comprehension and providing a Processing sketch for data visualization.
These DIY projects highlight the intersection of sports, automation, and electronics, showcasing the versatility of sensors like capacitance proximity sensors in novel applications. By repurposing materials and enhancing existing tools like calipers and punching bags with modern technologies, hobbyists and enthusiasts can create innovative solutions for tracking measurements and improving workout routines. The detailed documentation and code provided by these creators offer valuable insights for individuals looking to embark on similar projects, emphasizing the importance of accessibility and sustainability in DIY electronics.
Key Takeaways:
– Retrofitting digital calipers with custom tracks can extend measurement distances and enhance functionality for machine tools.
– Adding a punch counter to a punching bag using a capacitance proximity sensor demonstrates creative ways to integrate automation into sports equipment.
– Repurposing materials and improving existing tools with modern sensors showcase sustainable and innovative DIY practices in electronics projects.
Tags: sports, automation
Read more on hackaday.com