Who else is using Neopixels to display frequency bands using FHT?
I have this working on a full-sized Arduino, but I want to make a portable version. Would a Flora work too? A Trinket?
http://www.youtube.com/watch?v=R7pWtNaKbVw
Who else is using Neopixels to display frequency bands using FHT?
I have this working on a full-sized Arduino, but I want to make a portable version. Would a Flora work too? A Trinket?
http://www.youtube.com/watch?v=R7pWtNaKbVw
Go for a DFrobot Beetle. They’re tiny, Arduino Leonardo spec (32u4, 2.5k RAM), 5V and less than 8 bucks!
This little guy?
Also, cool, looks like you have that working rather nicely.
Yeah, it’s Andrew’s code. I’m messing with it to make the colors blink less.
Thanx.
Trouble-free option is Teensy 3.1 or 3.2 (if you need more 3.3V output)
https://www.pjrc.com/teensy/teensy31.html
Also supports FHT
https://www.pjrc.com/teensy/td_libs_Audio.html
I think the Teensy if the winner. FHT is processor intensive enough to need the extra memory and crunching power.
I still have a few hurdles to jump. Have to get a meter-long clear tube of some sort and attach it to a handle containing the electronics and battery.
Any suggestions for battery power. Something LiPo for sure.
Depending on the number of LED’s being powered, I just use a USB power bank along with power managed FastLED code (to limit the maximum current draw).
As a result, I haven’t yet implemented power hungry portable displays.