Arduino Cd74hc4067 Analog Multiplexer Library Code Example

Arduino Cd74hc4067 Analog Multiplexer Library Code Example Now, we’re ready to create our first arduino project with the cd74hc4067 analog multiplexer. in this example project, we’ll use the cd74hc4067 to extend 1 analog input pin of the arduino (a0) and make it accept up to 16 different analog inputs. for the sake of circuit simplicity, i’ll only use 4 analog channels of the cd74hc4067 module. Cd74hc4067 16 channel multiplexer pinout. this module has 24 pins: vcc: module power supply – 5v. gnd: ground. en: enable pin (active low) s0 3: selecting one of 16 analog input pins as the final output signal. c0 15: analog inputs. sig: output signal. you can see the pinout of this module in the image below.

Arduino Cd74hc4067 Analog Multiplexer Library Code Example The cd74hc4067 is a 16 channel multiplexer. this module is used when you need to monitor multiple sensors or input devices on a single port. this is helpful in devices where there are only 1 or few analog pins. the arduino has 6 analog pins, which means we can monitor a maximum of 6 sensors. with the help of cd74hc4067, we can monitor 16. Don't worry, you're not alone, it happens to the best of us, and there is something you can do about it. an analog digital multiplexer like the cd74hc4067 (mux for short) can help multiply the amount of pins you have, and it is insanely easy to connect to your arduino or other microcontroller. Hc4067 is a library to control the cd74hc4067 16 channel multiplexer demultiplexer and compatible devices. the hc4067 allows e.g one analog port read up to 16 different analog channels, or one digital port to read the state of 16 buttons. it is also possible to use the hc4067 to select an output channel. The circuit for this example is identical to the previous one. the difference here is that the output to the leds is a pwm signal you can output a pwm signal, by configuring the signal pin as an analog output and then calling the write method and providing as arguments the channel number and a value (0 to 255) for the duty cycle of the pwm signal.