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Test Code -- Nokia 3310 LCD display + Arduino

Adafruit 5110 LCD module The Nokia 3310 /5110 LCD are both popular for hobbyist projects and educational purposes. Both the Nokia 3310 and Nokia 5110…

BLDC vs PMSM Motor - Design & Difference in Construction

BLDC (Brushless Direct Current) and PMSM (Permanent Magnet Synchronous Motor) motors share a similar construction, both featuring permanent magnets o…

Installed Packages Disappear after Reboot in Alpine Linux

If Alpine Linux packages disappear after reboot on your computing device which is diskless, especially on devices such as Raspberry Pi, it's like…

What good is a Raspberry Pi model B rev2 in 2025?

The iterations The  Raspberry Pi 1 B rev 2  comes equipped with a BCM2835, is a Broadcom System-on-a-Chip (SoC) with 512MB SDRAM which is also used i…

Automotive OBD2 Pinout

Automotive OBD 2 Pinout On-Board Diagnostics II, or OBD2, is a self-diagnostic and reporting system in modern vehicles. It consists of an Electronic …

Adding Ethernet + Arduino = Network Device

Your Arduino project needs Internet connectivity, and you want it cheap as well? Spend a couple of dollars and less than an hour, and you will have i…