Hi guys , i want to connect a 4 digit 7 segment display (sbs-4405ag) directly to the picaxe without other controlers.
Can you help me plz???
ps: i want to make an incubator and the display is to show me the temperature.
How many pins does this display have? If it has a small number (e.g. 12) then it will be multiplexed, and you can find examples of how to drive a multiplexed display on the forum.
If it has many pins (e.g. 30), then it is not multiplexed and it can be treated as four separate displays. This could be a problem due to the number of I/O pins required, so it will probably be necessary to wire it up so that it is multiplexed.
I'm not trying to dissuade you from using the sbs-4405ag LED display, but using a
LED display like the widely available TM1637 would be far easier. Here is a link to PICAXE
code that is proven to work with a TM1637:
A link to the datasheet for the display (or upload an image) or details on the displays internal schematic are required.
Which PICAXE chip are you intending to use for your project?
How many IO pins can be assigned to the display. 4-digit Multiplexed display will need around 12 pins.