This Arduino sketch sequentially turns on and off LED strips that are attached under the bullnose of each step in a stairwell. The project uses synchronous serial communication with 74HC595 shift ...
Pump + is powered from 3.3V pin of the Arduino. Pump − is controlled via the 2n2222 transistor, which is connected to Arduino pin 13,12,8,7,4. Arduino Pin 2 controls the transistor's base to switch ...
The 2N2222 and BC549 transistors are two old components that are still universally used in the vast majority of electrical circuits today. Their applications include amplifiers, filters, impedance ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback