My son and I are working on a Halloween costume using arduino, specifically the Adafruit Playground Classic. So below are some notes on the project.
The processor:
Since the playground is not specifically called out in all command references, it is important to note:- ATmega32u4 Processor, running at 3.3V and 8MHz
- MicroUSB port for programming and debugging with Arduino IDE
- USB port can act like serial port, keyboard, mouse, joystick or MIDI
Sensors and Pins
- 10 x mini NeoPixels, each one can display any rainbow color
- 1 x Motion sensor (LIS3DH triple-axis accelerometer with tap detection, free-fall detection) SPI Pins, CS Pin on PIN 8 and Interrupt on PIN 7
- 1 x Temperature sensor (thermistor) PIN A0
- 1 x Light sensor (phototransistor) PIN A5
- 1 x Sound sensor (MEMS microphone) PIN A4
- 1 x Mini speaker (magnetic buzzer) PIN 5
- 2 x Push buttons, left and right PIN 19 Left, PIN 5 Right (Read HIGH)
- 1 x Slide switch PIN 21 LOW Left, HIGH right
- 8 x alligator-clip friendly input/output pins GPIO PINS 0, 1, 2, 3, 6, 9, 10, 12
Includes I2C, UART, and 4 pins that can do analog inputs/PWM output - All 8 pads can act as capacitive touch inputs
- Green "ON" LED so you know its powered
- Red "#13" LED for basic blinking PIN 13
- Reset button
- D10 / A10 - This pin can be digital I/O, or Analog Input. This pin has PWM output
- D9 / A9 - This pin can be digital I/O, or Analog Input. This pin has PWM output.
- D6 / A7 - This pin can be digital I/O, or Analog Input. This pin has PWM output.
- D12 / A11 - This pin can be digital I/O, or Analog Input.
- D1 - This pin can be digital I/O, it is also used for Hardware Serial Transmit, and can be an interrupt input.
- D0 - This pin can be digital I/O, it is also used for Hardware Serial Receive, and can be an interrupt input.
- D2 - This pin can be digital I/O, it is also the I2C SDA pin, and can be an interrupt input
- D3 - This pin can be digital I/O or PWM output, it is also the I2C SCL pin, and can be an interrupt input
- D4 - Left Button A
- D5 - Speaker PWM output
- D7 - Accelerometer interrupt
- D13 - Red LED
- D17 - Built-in 10 NeoPixels
- D19 - Right Button B
- D21 - Slide Switch
- A0 - Temperature Sensor
- A4 - Microphone sound sensor
- A5 - Light Sensor
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