Today we will make a Analog Clock & Digital clock with Led Strip and MAX7219 Dot module with Arduino. It will correct the time with the local time zone. The Analog clock can use a longer LED strip, so it can be hung on the wall to become a artwork, but the unit of LEDs needs to...
If you are using the 1088AS display, follow this wiring diagram to connect it to the MAX7219 and the Arduino: The resistor in the diagram above is the RSET resistor. It connects the ISET pin to Vcc to set the amount of current supplied to the LEDs. The exact value of RSET depends on...
In this step, we're going to make the electronic circuit first. If you are planning to use a PCB, it may be better to do this step with a breadboard so you can change how wires are arranged later. For the ON/OFF switch we are going to cut the USB wire and weld it to the swit...
The Max7219 works on in synchrony with the microcontroller it is connected to on a clock signal. On the rising edge of the clock signal are commands and instructions executed. So the clock pin of the Max7219, pin 13, connects to digital pin 13 of the arduino. This way, the micr...
Arduino RFID Door Lock Access Control Project Before we go through the code of our RFID door lock project, let’s take a look at the components and the circuit schematics of this project. In addition to the RFID module we will use a proximity sensor for checking whether the door is closed...
Before we start the server, the other packages have to be installed: npm install The Raspberry Pi Node.JS server can then be started. Since we use the GPIOs we have to start it with sudo. So I decided to run the server on port 80, because we can easily access it via the hostname...