If you're anything like me, the nostalgic screeches of ZX Spectrum games loading might bring a smile to your face. I've taken a trip down memory lane by working on my own tribute to this iconic machine—introducing the ESP32 Rainbow. It’s on Crowd Supply, where we're closing in on full funding! This blog post walks you through the journey of harnessing audial data to load games directly into my emulator—faster and more reliable than those temperamental cassette decks from our childhood.
After some stress and trepidation, I finally took the plunge and sent my PCB design off for manufacturing. My design centers around building a large seven-segment clock with LED filaments. Jumping hurdles such as voltages, pin usage, and limiting the load on my power supply, I've settled on the ESP32 as the system's heart and come up with a final circuit design. While doing this, I've quickly realized I could improve my layout and fixed a small mistake. Also, I've prepared for either types of LED filaments - the high-voltage ones or the larger, 3v ones. However, I did bungle...