The system integrates an AD9850 DDS module with an Arduino Nano V3 to generate and control a 0.5-V amplitude sine wave signal, amplified to approximately 10 V to actuate a piezoelectric element ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...

Arduino Real Time Alarm Clock DS3231 with TM1638. Arduino Clock with Battery backup (real time clock), Time, Date, Alarm, Temperature, TM1638 seven segment module output and input, Display Sleep mode.