• A 1.3” OLED display (SSD1306 or SH1106) for real-time data and menus.

  • An intuitive rotary encoder with push-button control.

  • Built-in safety indicators using the Pico’s onboard LED.

  • Support for temperature sensors such as NTC 100k thermistors.

  • Simple wiring and modular design for quick assembly and customization.

The firmware, written in MicroPython, includes:

  • Editable temperature presets.

  • Animated heating feedback.

  • A complete self-test routine (for NTC, buttons, SSR, and display).

  • Hysteresis-based temperature control for stable operation.