Speaker¶
Examples¶
hello.speaker.45 (2012 – 2025)¶
Speaker board, MOSFET amplifier, wavetable playback
hello.speaker.45.cad hello.speaker.45 board components traces traces+exterior interior C makefile video wavetable
hello.speaker.D11C (2022 – 2025)¶
ATSAMD11C-based speaker board, PWM/DAC audio
hello.speaker.D11C board components traces traces+exterior interior hello.speaker.D11C.ino hello.speaker-registers.D11C.ino video
hello.TB67H451.RP2040 (2023 – 2025)¶
hello.TB67H451.RP2040.audio.ino hello.TB67H451.RP2040.audio.py boot.py video hello.TB67H451.RP2040.wave.py sample.py hello.py convert_byterray.py video hello.TB67H451.RP2040.wave.ino sample.ino sample.main.ino convert.py video
hello.MAX98357A.RP2040 (2024 – 2025)¶
I2S digital audio, MAX98357A, RP2040
hello.MAX98357A.RP2040 board components top holes interior hello.MAX98357A.RP2040.ino video
Talking points¶
GC0351M-ND speaker (Digi-Key) (2012 – 2013)
PSR-23F08S-JQ speaker (Digi-Key) (2014 – 2017)
PSR-57N08A01-AQ speaker (Digi-Key) (2018 – 2025)
MOSFETs (NDS355AN, NDS356AP, RFD16N05LSM9A) (2012 – 2021)
Floating gates, gate resistors, low-pass filters, class D amplifiers (2014 – 2022)
Audio wavetable, Brian Mayton (2018 – 2025)
FM recording example, Brian Mayton (2018 – 2025)
Fluxamasynth MIDI shield (2018 – 2021)
Adafruit MAX98357A I2S amplifier (2024 – 2025)
I2S on RP2040 (2024 – 2025)
MP3 library (Adafruit, Pico) (2023 – 2025)
DFRobot MP3 module (2023 – 2025)
Synthesizer, Adafruit 1681 (2022)
H-bridge/driver ICs: A4953, A4950, DRV8838, TB67H451FNG, DRV8847 (2012 – 2025)
Solenoid actuator (Nerdkits xylophone) (2017 – 2025)
vibration motors (2015 – 2022)
Heat sinks (2022)