Training Material

Debugging is an important part of embedded systems because your code is interacting with real hardware. If something goes wrong, the program may not give you a clear error message.…

Networking enables a micro controller to communicate with other devices over a shared medium. The ESP32 includes an integrated Wi Fi radio and a full TCP IP networking stack, allowing…

A finite state machine, or FSM, is a structured model used to organize system behavior into a finite number of well defined states, along with clear rules that govern transitions…

An interrupt is a hardware or software signal that temporarily pauses normal program execution so the processor can respond immediately to an important event. Interrupts are used when low latency…

Accurate timing is a fundamental aspect of embedded system design. In a smartwatch, nearly every subsystem depends on precise and predictable timing, including screen refreshes, accelerometer interrupts, power management, step…

Embedded systems frequently operate under constraints such as limited memory, concurrent execution, and interaction with hardware through interrupts. In these environments, the static and volatile keywords play a critical role…

A Real Time Operating System enables multiple pieces of code, known as tasks, to execute seemingly at the same time on a single processor. This is achieved through rapid context…

While C++ enables object-oriented design, many low-level embedded modules are still written in plain C, especially when writing drivers that need to be lightweight, portable, or interface directly with C-based…

While C is commonly used for low-level hardware control, C++ allows us to structure firmware using object-oriented programming (OOP), which can make complex systems easier to organize, extend, and maintain.…

I2C (Inter-Integrated Circuit) is the primary communication protocol used to talk to most peripherals on the T-Watch, including the AXP202 power management IC, PCF8563 real-time clock, FT6236U touch controller, and…