My Robot Dodges Obstacles, and I Never Coded It
Can you build a real robot — one that senses the world and reacts to it — without writing a single line of code? A Raspberry Pi Pico, an MX1508 motor driver, a 3.3V ultrasonic rangefinder and four AA batteries, with every bit of the logic snapped together as blocks in Snakie. Here's the full build, the wiring detail that catches most people out, the failure that stopped it dead, and what the generated MicroPython actually looks like underneath.