RaspberryPi

Machine Learning Inference on Raspberry Pico 2040

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This is another article in know-how series, which focuses solely on a specific feature or technique and today I’ll tell you how to use neural network trained with Edge Impulse with new Raspberry Pico 2040. Also make sure to watch the tutorial video with step-by-step instructions.

Edge Impulse is a platform that enables developers to easily train and deploy deep learning models on embedded devices. You can read the full introduction in my first article of the series about TinyML. Now, let’s jump straight to action.

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MicroNova’s AmpliPi Is a RaspberryPi Powered Open Source Audio System for Your Entire Home

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Driven by a Raspberry Pi Compute Module 3+, this Python-powered audio system supports up to six stereos zones — expandable to 36.

MicroNova has launched a crowdfunding campaign for AmpliPi — an open source, whole-home audio system powered by a Raspberry Pi Compute Module 3+ and running a Python REST API and mobile-first web application.

“AmpliPi is a multi room/zone home audio controller and amplifier made for whole house audio systems with many zones,” explains MicroNova co-founder Jason Gorski of the device. “It can play up to 4 simultaneous audio streams (Pandora, Spotify, AirPlay, etc) or sources (RCA inputs), each routed to one or many zones, all of which are configurable in real-time using the self-hosted AmpliPi Web App or its underlying REST API.”

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This RaspberryPi Pico-Based Macro Keyboard Features a 3D-Printed Circuit Board

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As makers, we are extremely lucky that today we can have affordable, professional-level PCBs fabricated on demand in small quantities and shipped to our doorsteps in just a week or two. Those are absolutely your best option if you’re working on projects that require custom boards and you want them to come as close as possible to consumer devices. But the week or two it takes to get PCBs fabricated and shipped can be too long for quick projects and you may not want to spend the money anyway. That’s why Redditor Duzitbetter came up with a really clever way to 3D print the circuit board for this Raspberry Pi Pico-based macro keyboard.

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Luke Wren’s Surface-Mount Pico DVI Sock Brings Video Output Capabilities to the RaspberryPi Pico

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Compact surface-mount add-on offers a fully-functional DVI video output without sacrificing breadboard compatibility.

Engineer Luke Wren has released design files for a handy Raspberry Pi Pico upgrade, giving the low-cost microcontroller a DVI video output with a minimal increase in footprint: the Pico DVI Sock.

“[I] called it a Sock because it’s like a HAT [Hardware Attached on Top, a standard for add-ons which fit on the Raspberry Pi single-board computer family’s 40-pin general-purpose input/output (GPIO) header] but small and on the bottom,” Wren explains of the board, which adds little more than the size of an HDMI socket to the end of the host Raspberry Pi Pico.

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Luke Wren’s PicoStation 3D Games Console Gives the RP2040 FPGA 3D Powers — or Vice Versa

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As-yet untested in hardware, the PicoStation 3D is a highly flexible pairing of an RP2040 microcontroller and iCE40 FPGA.

Engineer Luke Wren has released the design files for a Raspberry Pi RP2040-powered games console dubbed the PicoStation 3D — with a Lattice Semiconductor iCE40 UP5k FPGA as a coprocessor for 3D graphics.

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Thermoelectric Cooler On The RaspberryPi 4! Super Low CPU Temps With Science!

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In this video, I test out a Thermoelectric cooler on the Raspberry pi 4 and it worked out really well even when the Raspberry pi is overclocked, it’s actually the best cooler I’ve tested on the I so far. This Cooler uses the Peltier effect and is actually classified as a solid-state active heat pump, It transfers heat from one side of the device to the other using electricity. Basically when you apply power to the heatsink one side gets really hot and one side gets really cold.

The thermoelectric device I use in the video is a low power version but the cold side can still get down to 8 degrees Celsius.

Building A Water Cooled Raspberry Pi 4 Cluster

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I built a water cooled Raspberry Pi 4 a couple of weeks ago. This was obviously crazy overkill for a single Raspberry Pi, but it isn’t actually why I bought the water cooling kit, I bought it along with 7 other Raspberry Pis so that I could try building my own water cooled Pi Cluster. I’ve really enjoyed the past few weekends putting it together. So, here’s a video of my Pi 4 cluster build, I hope you enjoy it!

For the full write up of the build, visit my blog – https://www.the-diy-life.com/building…

3D Printed Pi Arcade is an Emulation Horn of Plenty

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Let’s be honest, building a home arcade cabinet isn’t exactly the challenge it once was. There’s plenty of kits out there that do all the hard work for you, and they even sell some pretty passable turn-key units at Walmart now. If you want to put a traditional arcade cabinet in your home, it’s not hard to get one.

Which is why this wild build by [Rafael Rubio] is so interesting. The entirely 3D printed enclosure looks like some kind of art piece from the 1970s, and is a perfect example of the kind of unconventional designs made possible by low-cost additive manufacturing. Building something like this out of wood or metal would be nightmare, especially for the novice; but with even a relatively meager desktop 3D printer you’re only a few clicks away from running off your own copy.

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