схема подключения saa1064

The SAA1064 is also available in a regular through-hole DIP package. At this point, please download the as you will need to refer to it during the article. Next, our LED display examples. We need common-anodeВPdisplays, and for this article we use two Agilent HDSP521G two-digit modules ( ) as shown below:

It measures around 15mm in length. For use in a solderless breadboard, I have soldered the IC onto a through-hole adaptor:

Here is an example of the SAA1064 in SOIC surface mount packaging:

In this article we investigate controlling the 4-digit LED display driver IC with Arduino and the I2C bus interface. If you are not familiar with using the I2C bus, please read my tutorials (partsВP and ) before moving on. Although the SAA1064 is not the newest on the market, it is still popular, quite inexpensive and easy to source. Furthermore as it is controlled over the I2C bus – you don’t waste any digital I/O pins on your Arduino, and you can also operate up to four SAA1064s at once (allowing 16 digits!). Finally, it has a constant-current output – keeping all the segments of your LED display at a constant brightness (which is also adjustable). ВPSo let’s get started…

вІ byВP ВPвІЂЂЂ a series of articles on theВP ВPuniverse.ВPThe first chapter isВP , the complete series is detailedВP . Any files from tutorials will be foundВP .

This is chapter thirty-nine of a series originally titled вІ

Tutorial: Arduino and the NXP SAA1064 4-digit LED display driver

Tutorial: Arduino and the NXP SAA1064 4-digit LED display driver « t r o n i x s t u f f