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I've entirely moved from Arduino to the Teensy, which is pretty much entirely software-compatible (excepting pin number changes), but uses an ARM Cortex M4 with

I've entirely moved from Arduino to the Teensy, which is pretty much entirely software-compatible (excepting pin number changes), but uses an ARM Cortex M4 with 32-bit architecture at up to 96MHz on a much smaller board. The guy who makes them is also incredibly helpful on the support forums and constantly adding new features. The peripherals are so much better it's comical. Basically all pins capable of 16-bit PWM, having dual 12-bit ADCs, a real DAC, and removing most of the extra junk? Amazing. Now I just use it as a plug in brain for my custom boards, since it takes all the hardest to solder parts for an entire SoC and puts them in a form factor that's quite small and appropriate power for anything I've wanted to do so far. https://www.pjrc.com/teensy/ https://www.pjrc.com/teensy/

brokenmachine 10y ago
Teensy is great but mostly overkill for the kinds of basic IOT stuff that I find myself doing. I do want to do a project using a teensy with the audio board for beat detection eventually, but the teensy audio library still doesn't suppert beat detection. Paul posted that he would be adding it a couple of years ago I think, but it currently isn't implemented. ESP8266 for ~$3 at 160MHz with wifi built-in is such a bargain I can't go past it most of the time, and when I don't need wifi and want to use the Arduino libraries, Arduino pro micros are about the same price and have USB HID support. It's so great that there are so many great and well-documented options out there nowadays!
- neltnerb 10y ago
  Aha, yeah, that does look quite nice. I haven't done a wifi project in a while, but the last one I did [1] I nixed using a wifi chip itself since they didn't have enough PWM outputs. It seems like they've gotten better enough that I could just use the one chip to make my wifi lighting projects vastly simpler. [1] http://www.instructables.com/id/Ultra-bright-LED-Color-Changing-Spotlight-using-Op/ http://www.instructables.com/id/Ultra-bright-LED-Color-Chang... (things have come a long way since 2010!)

brokenmachine 10y ago

Teensy is great but mostly overkill for the kinds of basic IOT stuff that I find myself doing. I do want to do a project using a teensy with the audio board for beat detection eventually, but the teensy audio library still doesn't suppert beat detection. Paul posted that he would be adding it a couple of years ago I think, but it currently isn't implemented. ESP8266 for ~$3 at 160MHz with wifi built-in is such a bargain I can't go past it most of the time, and when I don't need wifi and want to use the Arduino libraries, Arduino pro micros are about the same price and have USB HID support. It's so great that there are so many great and well-documented options out there nowadays!

neltnerb 10y ago
Aha, yeah, that does look quite nice. I haven't done a wifi project in a while, but the last one I did [1] I nixed using a wifi chip itself since they didn't have enough PWM outputs. It seems like they've gotten better enough that I could just use the one chip to make my wifi lighting projects vastly simpler. [1] http://www.instructables.com/id/Ultra-bright-LED-Color-Changing-Spotlight-using-Op/ http://www.instructables.com/id/Ultra-bright-LED-Color-Chang... (things have come a long way since 2010!)