As an experienced Embedded Systems Engineer and Professional PCB Designer, I believe I'm the perfect fit for your project. I bring a wealth of knowledge and expertise in Arduino programming as well as a deep understanding of stepper motors and their drivers. I have hands-on experience in designing user-friendly interfaces like physical buttons, which aligns well with your project requirements. My comprehension of safety protocols and commitment to quality will ensure we include an effective emergency stop feature.
Moreover, my familiarity with various positioning feedback systems means we can explore options beyond limit switches for better precision if required. Given your openness to innovative solutions, I would like to propose including encoder-based feedback for enhanced accuracy in controlling the lifting stage. Instead of settling for open-loop control or old-fashioned limit switches, encoders are more reliable and can provide real-time positioning data for both speed adjustments and preset routines you desire.
To conclude, choosing me ensures a highly skilled and creative engineer dedicated to empowering your Arduino-stepper driver project. My ability to integrate firmware and hardware across multiple platforms, proficiency in IoT, wireless communication, and my track record of delivering on time with unmatched quality make me the strongest candidate for the job. Let's bring your ideas to life through my innovation and precision - you'll be glad you did!