What is esp32-c3_button_driver?

This project is a low-level driver for the ESP32-C3, a small and inexpensive microcontroller chip. It does one straightforward thing: when you press a physical button wired to the chip, an LED turns on, and when you release the button, the LED turns off. It acts as a real-time mirror of the button's state. What makes this project notable is how it is built. The entire program is written in RISC-V Assembly, which is a raw, foundational programming language that speaks almost directly to the hardware. Most developers build microcontroller projects using higher-level languages like C or Python, which are easier for humans to read and write. Writing in Assembly is much more difficult and tedious, but it gives the developer absolute, fine-grained control over the chip's inner workings and behavior. The way it works physically is simple. You wire a button to one pin on the microcontroller and an LED to another. The code runs a continuous loop that constantly checks whether the button is sending a signal. When it detects the button is pressed, it immediately sends power to the LED. The project includes a straightforward circuit diagram and shopping list for the required hardware, making it easy to build the physical circuit yourself. This project is aimed at people learning about reverse engineering, embedded systems, or low-level programming. It is less of a commercial product and more of an educational exercise. A student could use this to study how software interacts with hardware at the most basic level, or to practice taking apart and understanding a program written in Assembly. The creator also links to a broader reverse engineering course, suggesting this driver is a hands-on starting point for understanding how devices truly operate under the hood.