Adafruit METRO 328 Development Board - ATmega328, No Headers waterproof ultrasonic Function Direction Pin1 GND Ground

Function Direction Pin1 GND Ground &nbsp

Always use the proper current-limiting resistor when wiring standard LEDs unless the module already includes the required drive circuit

ASSOC）for XBee

3V boards like ESP32

the power adapter comprises a rectifier

Adafruit METRO 328 Development Board - ATmega328, No Headers waterproof ultrasonic Function Direction Pin1 GND GroundAdafruit METRO 328 without Headers ATmega328 is an official Adafruit product available from Circuitrocks, an official distributor of Adafruit. An Arduino Uno style development board built around the ATmega328, ideal for prototyping and teaching. Why choose this Adafruit board or module? Familiar ATmega328 development platform Compatible with many Arduino style shields and workflows Good for education, prototyping, and general embedded use What you can