LED Display Module 7 Segment Daisy Chain TM1638 8 Digit Input

If you need a fast and easy way to add some user input and output to a project, these display modules are interesting and fun. They contain eight 7-segment red LED digits, eight red/green LEDs and also eight buttons for user input. The units can also be daisy-chained, allowing up to five at once, and a short cable is included with each module, as well as some short spacers and bolts, as shown in the image. Hardware Connection to anArduino or other MCU is quite simple. The pinouts are shown on the rear of the PCB, and match the fitting on the ribbon cable. If you look at the end of the cable as such. The top-right hole is pin one, with the top-left being pin two, the bottom-right pin nine and bottom-left pin ten. Therefore the pinouts are: Pin 1 : Vcc (5V) Pin 2 : GND Pin 3 : CLK Pin 4 : DIO Pin 5 : STB1 Pin 6 : STB2 Pin 7 : STB3 Pin 8 : STB4 Pin 9 : STB5 Pin 10 : not connected. For Arduino use, pins 1~4 are the minimum necessary to use one module. Each additional module will require another digital pin connected to STB2, STB3, etc. More on this later. Please note that each module set to full brightness with every LED on consumes 127mA, so it would be wise to useexternal power with more than one module and other connections with Arduino boards.