ADC: Read Potentiometer & Filtering
Analog read with basic averaging filter.

Analog read with basic averaging filter.

First program: blink LED and print logs.

Read a button using debounce and interrupts.

Basics of I2C; scanning devices and reading sensors.

Show temperature/humidity on OLED.

Read multiple DS18B20 sensors.

Use hardware LEDC PWM to dim LEDs smoothly.

Temperature and humidity sensors.

Initialize SPI and mount SD.

Use HardwareSerial to talk to GPS/RS485, etc.