Exploring the Enhanced Low Amperage PCB Switch for Robotics
The journey to optimize a low amperage PCB switch for robotic applications is well underway, with several notable improvements in the design. One of the key adjustments has been the enlargement of the switch screw size, shifting from the initial specification of 2-56 to the more robust 4-40. This enhancement is aimed at increasing the contact area of the screw head, leading to better performance and reliability of the switch in practical applications.
Recently, a new batch of these enhanced boards has been ordered and is expected to arrive within the next couple of weeks, signaling a promising step forward in the development process.
Testing the switch on a dedicated test platform has shown encouraging results, particularly within the context of a dual motor driver speed controller currently being developed. The switch has successfully handled a current draw of approximately one amp, with potential for much higher capacities. Its performance suggests suitability for powering antweight (1lb) robots, and ongoing tests are anticipated to confirm its capability for beetleweight (3lb) robots as well.
Ensuring a method of accurate and consistent testing is the next milestone in this developmental phase. By connecting the switches to a variable load configuration—such as a brushless motor coupled with a watt meter—it is possible to precisely measure the current capacity and thermal response. This approach not only verifies the electrical load the switch can handle but also monitors the heat generated during operation, thanks to the watt meter’s integrated temperature sensor.
This testing strategy is crucial in refining the switch’s design and ensuring it meets the rigorous demands of robotic applications. The results will contribute valuable data that will guide future iterations and enhancements of the PCB switch, ultimately leading to a high-performance, reliable component for robotics enthusiasts and professionals alike.
Through these developments, the enhanced low amperage PCB switch shows great potential in advancing robotics technology, offering a more efficient and resilient solution for lightweight robotic systems.
