🛠️ Unified Pin Control Firmware

📌 Description

This firmware provides a universal, cross-platform solution to manually test and validate all GPIO pins on Arduino-compatible MCUs, including ESP32, STM32, ATmega, RP2040, and CH32 families.

Using a simple JSON API over WebSerial, it enables manual pin testing, validation, and monitoring directly from your browser.

---

🚀 Features

✅ Universal firmware for all Arduino-compatible boards
✅ Manual control and validation of pins
✅ Live monitoring of pin states and readings

---

📌 Available Pin Modes

🔹 INPUT MODES

• DIGITAL_INPUT
• DIGITAL_INPUT_PULLUP
• DIGITAL_INPUT_PULLDOWN
• ANALOG_INPUT
• CAPACITATIVE_TOUCH (if supported)

🔹 OUTPUT MODES

• DIGITAL_OUTPUT
• DIGITAL_OUTPUT_OPEN_DRAIN
• PWM_OUTPUT
• ANALOG_OUTPUT (for DAC-capable pins)

---

🔧 Requirements

• Arduino IDE or PlatformIO for flashing.
• Webserial compatible browser.
• Compatible with: (to be added)
  • ESP32 / ESP8266
  • STM32
  • RP2040
  • ATmega328P / Mega2560
  • CH32 series

---

📄 Documentation

JSON command reference available in API.md.

---

💡 Contributing

Contributions for board definitions, test rig integration, or frontend test UI are welcome.

---