![]() They're not designed as LED drivers but they will work fine, and require only a few control lines (you can daisy chain them). If you can reduce that to 6-7mA you can use a couple 74HC595s with 8 resistors each. 10mA-15mA would be a more reasonable maximum current. Unless you plan on only operating it outside in Canada in the winter you will likely be violating the ratings. Since I am new to sourcing electronics parts for my own projects, I would appreciate any tips on how to read datasheets for relevant information, how to find the exact part I need, or what are some good websites to look for parts on.Ģ5mA is the absolute maximum forward current of the LED segments at 25☌. available in DIP, so I can test it easily on breadboard.able to be controlled with SPI or something else that takes few pins.Have at least 14 outputs (or can multiplex the 2 7-segment digits).(I've tried looking on for a good solution, but I'm not sure what key words to search exactly, and it's difficult to understand the lingo of the datasheets to find out what a particular IC actually does.ĭoes anyone know of a good display driver or even a shift register that will work well with this display? If not, do you know what keywords or search terms are best to find what I'm looking for? ![]() What I'm looking for is a relatively inexpensive ($3-$4 or less) IC that can drive both of these, using a microcontroller to command it over SPI, or something else that uses few I/O pins. The forward voltage for each segment is 2.0 V. I have two 7-segment displays ( datasheet here). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |