Hello,
I'm fairly new to working with the Teensy 4.1 and its soldered-on audio adapter. I'm building a small piano
for my granddaughter using the SDpiano.ino sketch from this GitHub repository, with added code to
support six LED arcade buttons. It works well and sounds great — many thanks to h4yn0nnym0u5e for
the excellent code!
Right now, I’m testing the setup on a breadboard, using an externally powered speaker connected to
the audio adapter’s stereo jack. Everything sounds great so far.
As I move toward finalizing the build, I have a few questions:
1. Amplifier and Speaker Setup
What amplifier and speaker combo would you recommend to preserve the same sound quality I'm
getting now from the powered speaker?
2. Wiring the Amplifier to the Audio Adapter
How should I properly connect the amplifier and speaker to the audio adapter (SGTL5000) to ensure
safe and high-quality audio output?
3. Enclosure and Connections
I’m using a plastic container as the enclosure, with six holes drilled into the lid to mount the LED arcade
buttons. To wire everything together, I plan to use:
sure everything is secure and durable.
Will the breakout board and terminal block be strong enough for this kind of use? Or would you recommend
a more robust solution for long-term durability and safety?
4. Wire Type and Gauge
What size and type of wire would be best for connecting:
5. Power Supply
I'm powering the Teensy using a USB battery charger (similar to the kind used for iPhones). It works
well during testing, and I plan to use it as the final power source for the piano. Any suggestions on
making the setup more robust or tips for finishing the build would be greatly appreciated!
Thank you.
I'm fairly new to working with the Teensy 4.1 and its soldered-on audio adapter. I'm building a small piano
for my granddaughter using the SDpiano.ino sketch from this GitHub repository, with added code to
support six LED arcade buttons. It works well and sounds great — many thanks to h4yn0nnym0u5e for
the excellent code!
Right now, I’m testing the setup on a breadboard, using an externally powered speaker connected to
the audio adapter’s stereo jack. Everything sounds great so far.
As I move toward finalizing the build, I have a few questions:
1. Amplifier and Speaker Setup
What amplifier and speaker combo would you recommend to preserve the same sound quality I'm
getting now from the powered speaker?
2. Wiring the Amplifier to the Audio Adapter
How should I properly connect the amplifier and speaker to the audio adapter (SGTL5000) to ensure
safe and high-quality audio output?
3. Enclosure and Connections
I’m using a plastic container as the enclosure, with six holes drilled into the lid to mount the LED arcade
buttons. To wire everything together, I plan to use:
- A breakout board for the Teensy:
https://www.amazon.com/dp/B0BRSNLCFS - A terminal block to connect and organize all the ground wires:
https://www.amazon.com/dp/B07DW2C4ZB
sure everything is secure and durable.
Will the breakout board and terminal block be strong enough for this kind of use? Or would you recommend
a more robust solution for long-term durability and safety?
4. Wire Type and Gauge
What size and type of wire would be best for connecting:
- The buttons to the Teensy
- Power and ground lines
- The audio output to an amplifier/speaker?
5. Power Supply
I'm powering the Teensy using a USB battery charger (similar to the kind used for iPhones). It works
well during testing, and I plan to use it as the final power source for the piano. Any suggestions on
making the setup more robust or tips for finishing the build would be greatly appreciated!
Thank you.