ez Log - Short posts

A decibel (dB) is 1/10th of a bel (B), so 10 decibel = 1 bel. A decibel value by itself does not mean anything. It expresses a ratio, typically of power or intensity, on a logarithmic scale.

In electronics, voltage and current amplification are calculated as 20 * log₁₀ and power as 10 * log₁₀. Logarithms are the inverse of exponentiation. For instance, the logarithm to the base 10 of a number is the power to which 10 must be raised to produce that number.

Using this DC Boost converter (XL6009E1) you can easily convert 5V from the Arduino Nano USB to 12V. This setup should come in handy to power the SID chip. 

I have designed and put together an enclosure for the CNC 3018 router. The design files in LibreCAD (and PDF) can be dowloaded here.

One of my previous blog posts that is about recreating Atari XL/XE floppy disks describes a SIO2USB interface inside my Atari 65XE. The advantage of it is that it includes a switch that lets you toggle between the USB connection and the SIO port. This way you can easily switch between a real and virtual floppy disk that can be mounted with AspeQt software and copy real floppy disks to disks images and the other way around.

This SX04 2K LCD with controller board screen just got delivered. I will try to connect it to an HDMI output. RPi maybe? Believe it or not I have actually made an unboxing video. 

This project is from a couple years back. The 2D Xmas tree is still working.