I developed several libraries for my projects. Drivers to access special hardware and other useful tools. Most of them are published as a repository on my GitHub page.

https://github.com/LuckyResistor

There is a detailed post or documentation for a few of them. Browse the list below to find these pages.

Sharp Display Driver 8×8 Timer 2

I built a compact Arduino driver for the Sharp LS013B4DN04 that draws 8×8 pixel characters (12×12 chars) and uses Timer2 to auto-refresh the display. I walk through requirements, a minimal usage example, API methods, font format and where to download — please read the full post for code and details.

Compact Text Based Driver for Sharp Display

I built a compact, text-based driver for the Sharp LS013B4DN04 that uses 8×8 fonts to show a 12×12 character display. It uses only 174 bytes, refreshes changed rows, supports inverted characters, swappable fonts and scrolling. Read the full post to see the demo and code.

Sharp Display Driver 8×8

I built a compact Arduino driver for the Sharp LS013B4DN04 that writes 8x8 pixel characters (12x12 on screen). I explain setup, usage examples, methods, font format, and refresh rules. If you're using this display, read the full guide for examples, timing tips, and the library download.

A New Library for Meggy Jr RGB

I rebuilt the Meggy Jr RGB library from scratch to make game development simpler on the ATmega328P. I focused on low memory use, frame‑synchronized loops with a back buffer, clear color handling, fast pixel operations, reliable button input and a background sound player. Read the post for examples and the GitHub release.

Hidden Code

If you look into the code for my projects, you can find many useful implementations. Have a look at these:

• Driver for the MCP4821 DAC.
• A very fast block oriented SD card library.
• A minimal driver for the DHT22 real time clock chip.