- Fri May 08, 2015 2:24 pm
#16928
http://pages.ebay.com/link/?nav=item.vi ... 81&alt=web
this works for u?
this works for u?
Moderator: igrr
- Tue May 12, 2015 12:24 pm
#17258
Damn that sucks, I was really hoping to not need an external chip...
I've used that chip in my prototype, which was based off of an atmega328, but for my final version using the ESP, I figured I'd have the power to do it in software. I'll probably end up using a surface mount attiny85 or something so I can just use an Arduino FFT library and have full control over the EQ bands and whatnot.
Just in case, has anyone found a surface mount version of that EQ chip? I was looking on Aliexpress but didn't see one, only through whole. My final project is all surface mount.
I've used that chip in my prototype, which was based off of an atmega328, but for my final version using the ESP, I figured I'd have the power to do it in software. I'll probably end up using a surface mount attiny85 or something so I can just use an Arduino FFT library and have full control over the EQ bands and whatnot.
Just in case, has anyone found a surface mount version of that EQ chip? I was looking on Aliexpress but didn't see one, only through whole. My final project is all surface mount.
- Wed May 13, 2015 3:37 pm
#17328
Looks like it's possible to do FFT on an ATTiny85: http://shin-ajaran.blogspot.sg/2014/11/ ... ic-to.html
They're something like a buck fifty for the through hole version and less than a dollar for the surface mount version, so is reasonable financially compared to the dedicated MSGEQ7 chip. Would only need to add some serial communication code to send the EQ data to the ESP, and it should would great!
I'll try and hack something up. I have some ATTiny85 chips laying around I can try out. If I get it working (which I assume I will unless there's not enough power for both FFT and serial comms), then I'll post my code.
They're something like a buck fifty for the through hole version and less than a dollar for the surface mount version, so is reasonable financially compared to the dedicated MSGEQ7 chip. Would only need to add some serial communication code to send the EQ data to the ESP, and it should would great!
I'll try and hack something up. I have some ATTiny85 chips laying around I can try out. If I get it working (which I assume I will unless there's not enough power for both FFT and serial comms), then I'll post my code.
