20220730 The Wrong Microprocessor

20220730 The Wrong Microprocessor

This afternoon was not as productive as I wanted it to be. To put it mildly, the sound player did not play ANY sounds when connected to the 8-pin microcontroller. Just in case the player was faulty, I swapped it with another microcontroller. That bigger microcontroller played both modules without any issue. But the smaller […]

20220728 The Raspberry Pi Pico

20220728 The Raspberry Pi Pico

Remember the video where Mr. Nicholas Duchette showed off his TR-595E Tricorder? His Tricorder screen is actually an actual LCD with animations. The whole display system uses an 18-bit 320×240 2.2 inch LCD screen, and powered from a Raspberry Pi Pico. The Pico was released in January of 2021 and it is their first board-based […]

Did you hear about the JQ8400FL?

Did you hear about the JQ8400FL?

More than a decade ago, the sound chips were quite obscure and the only one in town was the ISD from Sequoia Technology. Or was it Winbond? It was so long ago that even Radioshack, which came to Malaysia for less than a year, has them in stock. But after that, I started to hear […]

20220717 TR-595E: The LCD Screen

20220717 TR-595E: The LCD Screen

I forgot to take a look at the LCD screen which arrived two weeks ago. The 2.2inch 18-bit LCD screen used in the TR-595E is a 320×240 TFT with a microSD card. Unfortunately, it is also out of stock at Adafruit. When it comes to electronics, I have challenges in sound, LCD screen, motors, and […]