Measure a battery up to 15V through a safe Arduino voltage divider, then display the result on a ten-segment LED bar with calibrated code.
Build an educational medication reminder with Arduino, DS3231, an LCD and a buzzer, including safe wiring, working code, and a test checklist.
Wire the LM35 correctly, convert ADC readings to Celsius using the actual reference voltage, and improve stability through averaging and calibration.
Compare a microcontroller with a single-board computer by real-time behavior, operating system, boot time, power, I/O and computing workload.