Pro micro

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Across
  1. 2. a loudspeaker that generates sound using piezoelectric effect
  2. 4. to connect microprocessor to the Arduino IDE software
  3. 6. organic light emitting diode
  4. 7. electrical component that limits or regulates the flow of electrical current
Down
  1. 1. board holds all the components together and links them with copper tracks
  2. 3. switch the slide switch that has 3 pins one is powered by lipo battery and the other being an open circuit
  3. 4. light emitting diode
  4. 5. many kinds and helps turn it on and off