A beginner-friendly guide to Raspberry Pi, the accessories needed to run it, the first setup steps, and useful project ideas for programming and automation.
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.