#Arduino led clock project software
#Arduino led clock project code

The user can set the current date and time.

The user can select date and time display styles, temperature units and set alarm clock time and duration.

#Arduino led clock project software

In other words, I rewrote the software pushing it against the limit of available memory. I decided to combine the two projects into one and add new features. However, I found the software overly simplistic. I wired the breadboards, installed the software, and got the two projects working. I purchased the Arduino real time clock kit and the parts needed for the building your own thermometer. The setup menu allows the user to add one hour in the spring and set the clock back one hour in the fall. I selected two projects: WayIn Real Time Clock Kit, and Building your own digital thermometer by Barry Lim. My choice was Arduino nano micro controller. Adjusting the program so that time is displayed when a pushbutton is pressed would help address this.įinally, this would make an excellent soldering project if you have your own components, a soldering iron and some perfboard.After years of programming mainframes, mini-computers, and desktop computers, I decided to try micro controllers. That's fine if it's mains-powered but not so good if you want some portability. With the LEDs on all of the time, this project would quickly take all of the power from a battery. The next thing you might consider is the power usage.

#Arduino led clock project code

A couple of push buttons and some nice code and you could set this up.Ī configurable alarm could be made if you added a Piezo buzzer. It would be useful to be able to set the time on the clock. These happen at predicatable times and could be accounted for in this prototype. The first is that the RTC does not adjust for clock changes. The clock works but it has some missing features and a few flaws. toggle the latch pin so that the data appears as an output variables to describe pattern of on lights

This section can be removed when everything is working All used for checking the time of the clock following line sets the RTC to the date & time this sketch was compiled With the rest of the code as below, replace the loop with the following lines to make sure that all of the LEDs can be lit, writeByte(255,1) The second shift register does the other 2 LEDs of the minutes as well as all of the seconds.īecause of the number of places where a faulty or missing connection can prevent this from working, it's worth just checking that you can light all of the LEDs properly. The first shift register controls the 4 LEDs that make the hours as well as 4 of the LEDs that make up the minutes. The tricky part of this code is to create the correct binary pattern. However, it works just like the one in the diagram. Some of the components (eg resistors) are also slightly different. There are some minor differences to the diagram to account for the differences between the Uno and the Mega. Here is a blurry photograph of the binary clock circuit set up on an Arduino Mega. The text labels show the pin connections - the connections to the shift registers are to digital pins. Take care with this one, there are a lot of things to get connected. The binary clock uses 4 place values for the hour (12hr format), 6 place values for the minutes, and 6 for the seconds. The time is read from a Real Time Clock breakout board - the same one used in the Digital Clock page. In this project, 16 LEDs are used to represent the time in binary.