Use when wiring or coding LDRs/photodiodes, temperature sensors (TMP36, DS18B20, NTC thermistor), or capacitive touch inputs (ESP32 touchRead, TTP223). Provides voltage-divider sizing math, sensor selection rules, ADC pitfalls, touch debouncing patterns, and working MicroPython + Arduino code.
Use when wiring or coding LDRs/photodiodes, temperature sensors (TMP36, DS18B20, NTC thermistor), or capacitive touch inputs (ESP32 touchRead, TTP223). Provides voltage-divider sizing math, sensor selection rules, ADC pitfalls, touch debouncing patterns, and working MicroPython + Arduino code.