Amekusa's Garden

Notes

• 🚗 Car🤖 Android🛠️ Development 2026.11.09 After Failing to Create a Car Time Alignment App: Rebuilding AndroidSoundTune

  A record of how I rebuilt my homemade Android app from scratch, focusing specifically on comparing frequency responses using a logarithmic sweep and measuring reverberation inside a car.

• ☕ Everyday Life 2026.11.07 The Morning Sun Shines on the Reading Glasses on the Desk — The Hidden Dangers of Focal Fires in Everyday Life —

  A close call one late-autumn morning, when the low morning sun shone through my reading glasses on the desk and focused on the black frame of my computer monitor.

• 🚗 Car🎧 Music 2026.11.04 A 1,000-Yen Tweeter and Electrolytic Capacitors — The Car Audio Rabbit Hole: The Next Move —

  A plan to verify the circuitry of the tweeter I purchased on Yahoo! Auctions, replace its capacitors with film capacitors, and repurpose the rear wiring.

• 🛠️ Development⚡ ESP32🐧 Linux 2026.11.03 Smart Just by Plugging It In? — My Attempt to Control a PC Power Supply Without Soldering Using the ESP32-S3 —

  An experiment in which the ESP32-S3 is configured to act as a standard USB keyboard, allowing voice control of a PC's sleep and wake-up functions without any additional components or soldering.

• 🛠️ Development⚡ ESP32🐧 Linux 2026.11.03 A Glowing LED, a Silent PC: The Pitfalls of the ESP32-S3 and USB Cable

  An ESP32-S3 that lights up but isn't recognized at all by the PC. After constantly suspecting the OS settings, I stumbled upon an unexpected pitfall at the physical layer.