GremlinWrangler
Senior Member

The basic tutorial on the linked page should work as written. Things the LC does not do: Has fewer pins Does not have the hardware for the audio library or OctoWS2811 mulit LED drive and some of the timer related...

The main choke point in pretty pictures would be the display rather than the teensy because of the time taken to send one screen worth of pixels is fixed by the display interface. If you can live with the needle not...

Per the 250mA max note on the reference card 100mA for the SD card is not a problem unless you are also powering other things that eat into that capacity. Be aware that the standard SD card library working in SPI mode...

Yes, most SD cards run on 3.3V so that would be the expected wiring method. One thing to watch for is that writing flash memory is quite power hungry, possibly up to 100mA so if you are doing high rate writes factor...

You do not normally need resistors, since you would use the internal pullups on the pins and not have a VCC supply at all. If you do have a VCC to the encoder then you may have a situation where one encoder position...

There is not an easy way to do this. The basic idea is to use the USB serial port and send messages either as single letters or more structured commands from your program. The basic proof of concept is to do this from...

The simple option is to delay(50) or similar and then release, short delay before checking if digital read is still low. Exact timings will depend on the USB bus handler at your computer. This will prevent other buttons...

Is there any particular reason to not use the Teensy optimized audio library? https://www.pjrc.com/teensy/td_libs_Audio.html Which has an inbuilt FFT. If your application wants more specialization you probably want...

1. The 12 sensors should not be a big issue as long as you are not trying to get too complex with the flower lighting effects. If you have a teensy already suggest adding the read logic for the other 11 inputs to your...

There are lots of ways to make things permanent, but given you have a working breadboard layout something like these will be relatively straight forward https://www.adafruit.com/product/591 Proto board or prototyping...

If you have nothing higher than give volts best option is probably a 5V battery bank. They will not be optimal but they come in many sizes/shapes and bypass challenges over getting all the parts to match together. If...