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The most popular blog posts about hardware & electronics on Hacker News. 4,806 posts.

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4144

Playing with a Raspberry Pi 4 64-bit

Lightweight virtualization is a natural fit for low power devices and, so, seeing that the extremely popular Raspberry Pi line got an upgrade, we were very keen on trying the newly released Raspberry Pi 4 model B. Getting the board up and running with a 64bit kernel (and a 64bit userland) proved to be kind of a…

4147

PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

The PiDP-11 is a modern replica of Digital Equipment Corporation’s influential PDP-11 minicomputer. Before, we had a computer on every desk and in every home–and long before they were in every pocket–computers were large, intimidating, and locked in special rooms at universities and corporations. The PDP series paved…

4148

Review: $99 TonidoPlug Linux Home Server, NAS

Have you ever wanted to get more out of your home network, like adding a NAS, without ponying up for expensive hard drives with Ethernet built-in, Time Capsules, Drobos or the like? While some newer routers come with a USB port allowing users to add a hard drive or printer on the network, they are c

4154

I made a cheap home motion sensor and controller

After designing my first PCB , I went on a designing spree. It turns out that making PCBs (printed circuit boards, basically a piece of plastic that includes all the connections of your components in it. It helps make your project smaller and cut down on the amount of wires floating around) is so enjoyable, I’m PCBing…

4161

Bit-banging a BASIC Birthday

I spent this summer building a new app, for a machine that hasn’t been on the market since 1980 and wasn’t built to support graphics, sound, connectivity or even lowercase letters, sold by a company that went bankrupt a decade ago, tailor-made for an audience of one: my dad, who celebrated his 70th birthday this past…

4163

uLisp on the Raspberry Pi Pico

The RP2040 is a microcontroller chip designed by Raspberry Pi in the UK. It's a dual-core ARM Cortex M0+ running at 200 MHz which provides up to 16 MB of off-chip flash and 264 KB on-chip RAM. It has 30 GPIO pins, 4 of which can be used as analogue inputs, two UARTs, two SPI controllers, two I2C controllers, and 16…