LED Matrix Digital Clock
Description
Digital Clock using an 8 X 32 MAX7219 LED Matrix as the display. Additional hardware required includes an Arduino Nano, a DS3231 RTC module, 2 large push buttons, a mini-USB to USB cable, a 5V 1A wall adapter, wiring, and an adhesive like glue or silicone. The hardware for this design is originally from a video by MOUNT DYNAMICS on YouTube. The altered code for my version is provided as a .ino file, and can be uploaded in the Arduino IDE. ASSEMBLY INSTRUCTIONS: 1.Print all of the components first, this will allow you to get an idea of the sizing and positioning of components. 2.Solder the components together, using the instructions from MOUNT DYNAMICS' video https://youtu.be/1rt031sYztw, as well as the following considerations; The Arduino Nano will positioned in the small rectangular cutout on the Back Housing, with the Mini-USB connector facing outwards. The buttons will be on the left side of the housing, secured in placed by the Button Bracket. The RTC can go anywhere in the housing, but make sure to keep the CR2032 Battery of the RTC accessible for changing. Please Verify all electrical components work and are tested before proceeding to the next step. Code should be uploaded to the Arduino and tested to verify functionality. 3.Once all electrical components are soldered, position the matrix within the front plate. The Matrix friction-fits into the front plate, but you might need to lightly sand or file a little bit away to account for manufacturing error. NOTE: The larger holes indicate the "top" side of the plate, with the larger protrusions on the Back Housing being the "top" side. 4.Secure the Arduino Nano into the rectangular cutout, and Adhesive the RTC module to the desired location in the housing. Position the buttons in the 2 holes, placing button 1 in the top position, and snapping the button bracket in behind the buttons. 5.Attach the Diffuser to the Front Plate, applying a very small amount of adhesive to the border. 6.Attach the Front Plate to the Back Housing.
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