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inventrdotio / AdventureKit2

Code for the second adventure kit
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Created Skeleon of Seven Segment Display Device md file #1

Closed cirqMoss closed 1 year ago

inetdavid commented 1 year ago

Final AK2 is likely to replace this bare part with an HW-069 module which uses fewer pins and is much easier to use, but this will be handy for anyone working with the bare part included in the Beta kit.

inetdavid commented 1 year ago

One sample comment: "So, I followed this tutorial and in reality - my 4th digit started to burn out. Brightness decreased. But I found another tutorial that instead added 220 ohm resistors on pin 2-8. So be careful if you are going to do this tutorial and add 8x 220 ohm resistors"

inetdavid commented 1 year ago

Datasheet at http://www.xlitx.com/datasheet/5641AS.pdf. I just don't know how to calculate the current vs. max current. ;-)

cirqMoss commented 1 year ago

Datasheet at http://www.xlitx.com/datasheet/5641AS.pdf. I just don't know how to calculate the current vs. max current. ;-) So current would be directly proportional to voltage and resistance. We will need at least a 720Ω of resistance in series with the display to ensure the device does not go over the max current. But I believe that is for the whole setup each individual digit will need 220Ω I will put in a fritizing file that shows this

cirqMoss commented 1 year ago

Updated document to account for resistance and added fritzing file to show this.