Description: Electronics plus software tips and tricks
Electronics plus software tips and tricks
The Arduino Uno is limited to fourteen digital input/output pins and six analog input pins. The analog input pins can also be used for digital input/output thus providing a total of 20 digital input/output pins. In the four digit seven-segment display developed in blog post Driving Seven Segment Displays , twelve digital input/output pins were used, seriously limiting the amount of input/output real estate left. This would be especially true if we were to increase the number of displayed digits and if we ne
I have used serial communication throughout my blog posts. We have used it to send and receive Morse code in the Morse Code Reader and Morse Code Generator posts. We have also used it to communicate with the temperature and humidity sensor DHT22 in the Sensing Temperature and Humidity post. In this post, we will use the SN74HC595 8-bit shift registers with 3-State output registers integrated circuits to convert serial signals into a collection digital output values. Using only three of the Arduino Uno’s dig