Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - Red [ADA1270]
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The soldering is necessary, but it is simple, and Adafruit provides instructions on their web site that outline what needs to be done.
All microcontroller implementations that have I2C connectivity and the appropriate support software for driving it will work with this. In general, if you are using the Arduino IDE, any Arduino board with EEPROM capacity to store the base code + the Adafruit library for this part and I2C channels and address space should work fine. The display is particularly large, so keep that in mind. The size of that unit wasn't available in the smaller one, so I decided to buy this instead. It's a good thing I've got both now,
Python introduces the concept of a display as an object and allows you to set each digit separately. You can see how I created a clock display in this snippet of code. A segment is a subset of an entire group. Clear() *br> # Set up the hours "set_digit(0, int(hour / 10)) " # Tens / Set moment of time (0, hour, % 10). # Ones *br> # Set minute # Tens segment. set_digit(2, int(minute / 10)) # 01/10 Setting the minute digit (3, 10%) to one # Set the colon and frame segment to be toggled. * Set the colon at 1 Hz with set_colon(second %) * * * # Write the display buffer to hard drive. It must be called in order to update the LEDs in the actual display. There is a break in the
In the absence of an external supply, the Raspberry Pi can supply enough current to power the display.
Selected User Reviews For Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - Red [ADA1270]
I bought these after trying to convert a 16 pin to I2C on my own using a backpack I purchased separately. This set comes fully assembled, is easy to use, and provides great value for money. The brightness, adjustment and conformance with the AdaFruit and other libraries are completely standard.
An easy-to-read two-inch display makes it easy to read the screen. Connecting it to a Pi Zero gives me a simple clock for the Raspberry Pi. With the help of the Adafruit_Python_LED_Backpack library, I wrote a simple Python script. It is fairly easy to put together, only requiring a tiny amount of soldering.
The product works perfectly for me. I will use it to put a heads-up display on the dashboard of my car, which will display my speed on a screen. Below you can see a picture of the 3D printed holder I made for it, as well as a picture of how I tested.
I think it is mostly good, but better documentation would be desirable. I still cannot figure out how to print a blank, so for example rather than seeing 102, I need to print 1 2, the space between these two numbers.
This display is fantastic! As well as the products, Adafruit has great support in the form of learning resources online. I highly recommend this book.
The display is super BIG and super bright. The components are easy The program is fairly easy to create. In addition to a clock project with an Arduino Uno, I'm using it for other projects.
It's great to see such large numbers. It is relatively simple to A solid product and superb instructions (as one would expect.
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