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NeoPixel LED
• NeoPixel Location
• NeoPixel Color and Brightness
• RGB LED Colors
• NeoPixel Rainbow
CircuitPython Internet Test
• Secrets File
Adafruit IO: Send and Receive Data
• NeoPixel Location
• Adafruit IO Feeds and Dashboard
• Adafruit IO Example Secrets
• Adafruit IO Example Code
• NeoPixel Color Change
• Code Walkthrough
I2C
• I2C and CircuitPython
• Necessary Hardware
• Wiring the MCP9808
• Find Your Sensor
• I2C Sensor Data
• Where's my I2C?
Storage
• Wiring for MCP9808
• The boot.py File
• The code.py File
• Logging the Temperature
• Recovering a Read-Only Filesystem
Capacitive Touch
• One Capacitive Touch Pin
• Pin Location
• Reading Touch on the Pin
• Multiple Capacitive Touch Pins
• Pin Location
• Reading Touch on the Pins
• The Available Touch-Capable Pins
I2S
• I2S and CircuitPython
• Necessary Hardware
• Wiring the MAX98357A
• I2S Tone Playback
• I2S WAV File Playback
• CircuitPython I2S-Compatible Pin Combinations
Multitasking with asyncio
• asyncio Demonstration
• Wiring
• asyncio Example Code
• Code Walkthrough
• My program ended? What happened?
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