Audio Codec - Basic Input Output Audio Codec - FFT Audio Codec - Input FFT Audio Codec - Output Sine Wave Audio Codec - Play and Record Wav Files E-Paper - Display Images E-Paper - Display Text E-Paper - Display User-generated QR Code FatfsSDIO - File system in SD card FatfsSDIO - Read And Open HTML File From SD Card Flash Memory - Store data in FlashEEProm Flash Memory - Use Flash Memory Larger Than 4K GPIO - Measure Distance By Ultrasound Module GPIO - Measure Temperature and Humidity GPIO - Use GPIO Interrupt To Control LED GTimer - Using The Periodic GTimer GTimer - Using the One-Time Gtimer I2C - Send Data to Arduino UNO I2C - Display Data On LCD Screen I2C - Receive Data from Arduino UNO Power Save - Deep Sleep Mode Power Save - Deep Sleep for DHT and E-paper Power Save - Deep Sleep for DHT and LCD Power Save - Tickless Mode PWM - Play Music by Buzzer PWM - Servo Control RTC - Simple RTC RTC - Simple RTC Alarm SPI - Print Image And Text On LCD Screen SPI - Show PM2.5 Concentration On ILI9341 TFT LCD TensorFlow Lite - Hello World TensorFlow Lite - Magic Wand TensorFlow Lite - Micro Speech TensorFlow Lite - Person Detection UART - Communicate with PC over USB to Serial Module UART - Retrieve GPS Position UART - Set Callback Function For UART Communications UART - PM2.5 Concentration in The Air USB - CDC Serial USB - HID Gamepad USB - HID Keyboard USB - HID Mouse Watchdog - Simple WDG Timer WS2812B - Basics WS2812B - Patterns