A roadmap for building connected devices with electronics basics, microcontrollers, firmware, sensors, protocols, and cloud integration.
Learn C/C++, circuits, digital logic, sensors, actuators, debugging, and microcontroller basics.
Use variables, pointers, structs, memory, interrupts, timing, and hardware-aware code safely.
Understand voltage, current, resistors, breadboards, GPIO, ADC, PWM, I2C, SPI, and UART.
Build firmware on Arduino, ESP32, or Raspberry Pi Pico and send data over Wi-Fi, BLE, MQTT, and HTTP.
Use topics, retained messages, QoS, certificates, device shadows, and telemetry payloads.
Learn tasks, scheduling, queues, semaphores, timers, and real-time constraints.
Calibrate sensor readings, handle noisy data, add watchdog behavior, and document wiring plus test results.
Connect devices to dashboards, secure firmware updates, monitor telemetry, and document hardware projects.
Secure keys, firmware, OTA updates, device identity, encrypted transport, and physical attack assumptions.
Build a sensor device that publishes data, shows a dashboard, handles offline cases, and includes wiring diagrams.
Move beyond prototypes by testing devices, documenting hardware, and preparing systems for field use.
Translate breadboard prototypes into schematics, simple PCBs, connectors, power protection, and enclosure constraints.
Add device logs, health checks, watchdogs, OTA rollback plans, telemetry alerts, and hardware test checklists.