Is it possible to daisy chain two LED bars, using only one digital port? I have two Grove LED bars (<LINK_TEXT text=“https://www.seeedstudio.com/Grove-LED-B … -2474.html”>https://www.seeedstudio.com/Grove-LED-Bar-v2-0-p-2474.html</LINK_TEXT>)… I can hook them up to separate digital ports (eg D7 and D8), but instead I’d like to do this:
- Use only one digital port
- Go from D8 on the Grove shield into one LED bar
- Connect GND, VCC, DCKO, and DO, into GND, VCC, DCKI, and DI of the second LED bar
- In my code, make only one call to bar.setBits(value)
Is this possible? When I tried this, the LEDs on both LED bars were synced up and matched each other. In other words, when I called
…the first 5 LEDs on both LED bars were lit (and the remaining LEDs were off). I was expecting the first 5 LEDs to be lit only on the first LED bar. So is it possible to daisy chain multiple LED bars, and control their LEDs independently?