Quantcast
Channel: Raspberry Pi Forums
Viewing all articles
Browse latest Browse all 4832

General programming discussion • Re: 24 Minute Sun Simulation

$
0
0
Update: New Pico and logic converter have arrived.
I plugged in the test strip of 30 LEDs and everyone of them lit up white. Never happened before and I don't know why they are now.

Logic converter 74AHCT125 is powered and the voltmeter says its working. As per the diagram at https://learn.adafruit.com/neopixels-on ... -pi-wiring (first diagram). Unfortunately they're using 2812 LEDs and I'm using 2815. I have GPIO2 going to 1A on the converter. 1Y then connects to the primary data line on the LEDs. My voltmeter shows that this has 5 volts. https://cdn-shop.adafruit.com/product-f ... AHC125.pdf for pin read out.

I have not had control of my strip at all. They came on white and some have turned off. For some reason the first one went off and came back red, its the only one to show color. I have connected the data lines and another ground wire from the Pico as shown in the first link and also this Youtube video:https://www.youtube.com/watch?v=QhdgTG4SeuY. Skip to about the 6 minute mark.

Statistics: Posted by slotfan — Sun Jan 19, 2025 3:01 am



Viewing all articles
Browse latest Browse all 4832

Trending Articles