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Hardware & Electronics

The most popular blog posts about hardware & electronics on Hacker News. 4,805 posts.

Any year
2042

A Mini Monitor for a Pi

This post outlines how I used a small 2 inch display as a monitor for my pi. Where it can display tty terminals and X desktops and applications as if it was a normal screen connected over hdmi. My overall goal is to have a sort of handheld “console” that I can connect a keyboard to and use as a normal computer. This…

2052

The IBM Pentium 4 64-Bit CPU

This time we will talk about one unique Intel processor, which did not appear on the retail market and whose reviews you will not find on the Internet. This processor was produced purely by special order for one well-known manufacturer of computer equipment. Also in the framework of this article I will try to assemble…

2057

Fast line-following robots

Since February 2016, I have been participating in DIYRobocars meetups here in the SF Bay Area, wherein a bunch of amateur roboticists compete in autonomous time trials with RC cars. I had been doing very well in the competition with essentially just a glorified line-following robot, but have lately upgraded to a full…

2067

I made a 10¢ MCU Talk

I taught a 10¢ CH32V003 RISC‑V MCU to talk. By bit-banging PWM as a DAC and using a tiny 2‑bit ADPCM decoder, I squeezed ~6–7 seconds of recognizable audio into 16 KB of flash. Then I went full ret...

2069

Build your own Dial-up ISP with a Raspberry Pi

Last year my aunt let me add her original Tangerine iBook G3 clamshell to my collection of old Macs1. It came with an AirPort card—a $99 add-on Apple made that ushered in the Wi-Fi era. The iBook G3 was the first consumer laptop with built-in Wi-Fi antennas, and by far the cheapest way to get a computer onto an 802.11…