[vc_row][vc_column][vc_column_text] In the Arduino application system, a keypad is one of the indispensable components for human-computer interface. When the IO […]

[vc_row][vc_column][vc_column_text][/vc_column_text][vc_tour][vc_tab title=”Part list” tab_id=”1394617120-1-0″][vc_column_text]1  x  [bigcommerce link=”/cityduino-arduino-uno-compatible-device/” target=”_blank”] arduino UNO [/bigcommerce] 1  x  [bigcommerce link=”/ultrasonic-sensor-breakout-srf04/” target=”_blank”]Ultrasonic Module HCSR04[/bigcommerce] 1  x […]

[vc_row][vc_column][vc_column_text] [/vc_column_text][vc_tour][vc_tab title=”experimental device” tab_id=”1394778784-1-84″][vc_column_text]6  *  Led Lights 6  *   220Ω resistor Several  colorful experimental breadboard jumper[/vc_column_text][/vc_tab][vc_tab title=”Test the Connection”][vc_column_text]Wiring […]

[vc_row][vc_column][vc_column_text] PWM is short for Pulse Width Modulation. PWM is a method that digital code for the analog signal level. […]

[vc_row][vc_column][vc_column_text]Simple MAC is a narrow band power line communication module which has TTL level interface, it can be directly connected […]

[vc_row][vc_column][vc_column_text] The serial UART 16×2 LCD allows you to control a parallel based LCD over a single-wire serial interface. The […]

[vc_row][vc_column width=”1/1″][vc_tour][vc_tab title=”Introduce” tab_id=”1393987000-1-88″][vc_column_text]Breathing lamp refers to the lights that complete gradual change from light to dark under the control of a microcomputer or circuit , feeling like breathing. It is Widely used in mobile phones and become one of the selling points of new phones at each big brand . If your phone has a pending notification, such as missed calls, unchecked messages and so on, breathing lamp will change from dark to bright, the rhythm     is  just   like breathing , and it […]