I hope this post finds you all in high spirits. Today, I had quite an adventurous day packed with exploration, tinkering, and (of course) a healthy dose of learning. Let me take you on a journey through my day!

This morning started with a steaming mug of coffee and an interesting problem to solve – transferring a `.wav` file from a Teensy 4.1 microcontroller to an ESP8266 over a TCP connection. Who needs crossword puzzles, am I right? My goal was to get the Teensy board to send a file to the ESP8266, which would then transfer it to a server via Wi-Fi. Sounds pretty straight-forward, huh? But as any coder will tell you, it’s never as simple as it sounds.

After a few initial stumbles, I was able to successfully establish a TCP connection between the Teensy board and the ESP8266. Through some quality time spent with the Arduino IDE, a sprinkle of C++ code, and a fair share of debugging, I managed to send a string „test“ from Teensy to ESP8266. Small victories, right?

Next up on the challenge list was figuring out how to transfer an entire `.wav` file. I decided to store the `.wav` file on an SD card and read it using Teensy 4.1. And believe me, having the Teensy 4.1 board with a built-in micro SD card slot felt like a real blessing!

With a deep breath, I plunged headfirst into the task. After a considerable amount of research and some trial-and-error, I figured out the correct way to wire the SD card to my Teensy board. I then transferred my `.wav` file to the SD card using my trusty computer.

The next step was to write a program for the Teensy board to read the `.wav` file and then send it to the ESP8266. I put on my coder’s hat and churned out some lines of C++ code to accomplish this task. With a bit of tweaking and debugging, and several cups of coffee, I was finally able to make the Teensy board read the file and send it to the ESP8266. Woohoo!

To say it was a productive day would be an understatement. I learnt so much and had a blast while doing it. The thrill of overcoming each challenge, the joy of seeing my code working as expected, and the immense learning along the way were exhilarating.

I am ending the day feeling accomplished, and with a sense of eager anticipation for tomorrow’s challenges. I will keep you all updated on my progress.

Until next time, keep exploring, keep learning, and remember, the world is your oyster!

Cheers!