Posts Tagged Raspberry Pi

 

Contact tracing with a Raspberry Pi Zero-W

Contact tracing via smartphone apps has been widely touted as an important way to control and limit the spread of the COVID-19 epidemic. However, basing contact-tracing on phone apps has several limitations. Here are instructions for constructing a contact tracing device prototype with a Raspberry Pi Zero-W. The constructed device is compatible with the Apple/Google Bluetooth contact tracing specification. It runs the Epidose software, which is based on the DP3T "unlinkable" design.

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Installing PyTorch on a Raspberry Pi-3B+ redux

This is an update to articles for installing the PyTorch machine learning library on a Raspberry Pi that have been published by Amrit Das in 2018 and Saparna Nair in 2019. It builds on them by updating the required settings and introducing a fix and a few tweaks to make the process run considerably faster. Although there are Python wheels floating around that offer PyTorch as a Raspberry Pi Python package, downloading them from unverified sources is a security risk. Here's how to install PyTorch from source.

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Netdata on a Raspberry Pi

A couple of days ago I had the privilege to see a demo of netdata by Costa Tsaousis, the person behind this project. The project offers comprehensive real time monitoring of a Linux computer with low overhead in a single easily-installed and self-contained system. I thought this was too good to be true, but the number of users and installations hinted that this could well be the case. I therefore decided to install the system on a Raspberry Pi I'm configuring to replace an ancient 20 year old IBM PS/2 server.

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Raspberry Pi vs USB vs Mac Audio

The audio hardware of Raspberry Pi is known to produce relatively poor sound quality. I bought a cheap USB sound card to try as an alternative. Here is what I found.

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Raspberry Pi Zero vs Elliott 405

Twitter users @SadHappyAmazing and @HistoricalPics posted yesterday two photographs (copy) showing the Raspberry Pi Zero juxtaposed in front of the Norwich City Council Treasurer's Department building, where the delivery of the Elliott 405 computer was photographed in 1957. Here is how the two computers compare.

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