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Circuit Playground Express
AdafruitATSAMD21G18 ARM Cortex M0
The Adafruit Circuit Playground Express is a versatile development board designed for learning electronics and programming. It supports MakeCode, CircuitPython, and Arduino, featuring numerous built-in sensors, LEDs, and alligator-clip friendly I/O pads.
In stock
Specifications
11- Clock Speed
- 48 MHz
- Operating Voltage
- 3.3 V
- Flash Storage
- 2 MB
- Gpio Count
- 8
- Logic Level
- 3.3 V
- Usb Interface
- MicroUSB
- Usb Functions
- serial, keyboard, mouse, joystick, MIDI
- Onboard Sensors
- accelerometer, temperature, light, microphone, IR receiver/transmitter, proximity
- Onboard Outputs
- 10 NeoPixels, speaker, red LED, green power LED
- Onboard Inputs
- 2 push buttons, 1 slide switch, 7 capacitive touch pads
- Battery Input
- JST connector, up to 6V DC
Pinout
11| Pin | Name | Functions | Notes |
|---|---|---|---|
| — | GND | GND | 3 pads available |
| — | 3.3V | POWER | 2 output pads, max 500mA (approx 300mA available for user) |
| — | Vout | POWER | Connected to USB or battery (higher voltage); resettable fuse 500mA continuous / 1A peak |
| A0 | A0 | GPIOADCPWMAUDIO | True analog output; interferes with built-in speaker; cannot be used for capacitive touch |
| A1 | A1 | GPIOADCPWMCAP_TOUCH | |
| A2 | A2 | GPIOADCPWMCAP_TOUCH | |
| A3 | A3 | GPIOADCPWMCAP_TOUCH | |
| A4 | A4 | GPIOADCI2CCAP_TOUCH | I2C SCL |
| A5 | A5 | GPIOADCI2CCAP_TOUCH | I2C SDA |
| A6 | A6 | GPIOADCPWMUARTCAP_TOUCH | Serial Receive |
| A7 | A7 | GPIOADCPWMUARTCAP_TOUCH | Serial Transmit |
Interactive pinout
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ATSAMD21G18 ARM Cortex M0
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