Open Hardware: Raspberry Pi, Arduino, Purism, and More
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Tom's Hardware ☛ Raspberry Pi smart fridge uses Chat GPT4 to keep track of your food
Mimobeano is using a Raspberry Pi to drive their Chat GPT smart fridge, which looks for food and notifies you when something is going to expire soon.
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CNX Software ☛ SunFounder GalaxyRVR review – An Arduino programmable Mars Rover-like robot for education
SunFounder sent us a GalaxyRVR 6-wheel robot for review. It looks like NASA’s Mars Rover robots but targets the education market with an Arduino UNO R3 compatible board and an ESP32-CAM board for WiFi connectivity and video capture. The GalaxyRVR robot kit can transmit video signals over WiFi to explore planet Earth with your mobile device or tablet and the camera can be adjusted up and down thanks to a servo motor. The robot gets its power from a solar panel coupled with a battery and features sensors such as obstacle avoidance and ultrasonic modules.
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Matthew J Ernisse ☛ Building a Custom Lightning Audio Cable_
Well, I got tired of that. I bought a replacement cable for the QC25s and cut the 3.5mm end off to see if I could simply attach it to the Lightning end of the Apple cable. It turns out you absolutely can. The result fits so much better in the pocket and is a lot stronger than the flimsy Apple adapter is. The salient detail is the pinout of the Lightning end of the Apple adapter and the trick is that the tip includes a plug detect feature so you need to connect both the green with copper stripe wire and the red wire together to the tip so the i-thing sees something 'plugged in'. To save you the work of testing the jack end pinout, this is what I came up with.
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Arduino ☛ This DIY Jurassic Park pinball machine is a T-Rexcellent use of Arduino
Some of the parts, like the spring-loaded ball launcher, are standard off-the-shelf pinball components that are available through retailers that sell refurbishment parts. But most are custom and work using electronic circuitry. The electronic components operate under the control of an Arduino Nano and an Arduino Mega 2560. The Nano is tasked with the flippers, while the Mega handles the displays, sensors, and solenoids.
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Arduino ☛ What’s up, Docs? Arduino Docs gets a revamp!
With 75+ current hardware products documented, hundreds of tutorials, and dozens of datasheets, it’s definitely the go-to resource center any time you have a new Arduino product, want to learn a new skill, or need help to figure something out! Want to host a web server on your brand new MKR WiFi 1010? Can’t wait to dive into the ultimate manual for your Opta micro PLC? Wondering how to set up a security system using ML? Need a solid starter guide for Arduino Cloud, the IDE 2, or Arduino in general? Arduino Docs has you covered, with specific and updated information to support all of this and so much more.
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SparkFun Electronics ☛ Cat Presence Detector
Knowing my cats hatred of water, I knew it had to be something to involve our water spray bottles autonomously spraying them when they're spending time in places they should not. I know that there are devices out there that exist for this, but why would I pay money when I have all the components for doing so right here with me! I recently worked on the STHS34PF80 Human Presence Sensor, and I figured since the device reads a persons IR value, it could do the same for a cat.
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Tom's Hardware ☛ Say cheese! This optical mouse is now a camera
Early in the video, Doctor Volt dissects a pretty old Logitech mouse. We saw that the optical sensor being used by this geriatric rodent was the ADNS 2610 made by Agilent in 2004. Further investigations revealed that this sensor features an 18x18 array of photodiodes. In the mouse, these would be mounted behind a lens and above a prism that directs light from an LED to your mousing surface. The project proposed this ADNS 2610 sensor would be the heart of the mouse-camera.
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Raspberry Pi ☛ Build a Raspberry Pi mecanum robot | HackSpace #75
Take your Raspberry Pi on the move by designing and making a wheeled robot This tutorial will explain how you can design and make your own robot. Start by designing your own chassis and mount mecanum wheels with full direction control. The robot will then need four separate motors individually controlled with a H-bridge driver for each wheel. Take control by learning how to use AntiMicroX to control the robot with a gamepad.
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Purism ☛ Purism Crosses $100,000.00 in fewer than 48 Hours [Ed: Faking their worth and adding two zeros for cents while Phoronix, their media partner, parrots their claim of being worth almost 100,000,000 dollars; Purism seems to be entering a pyramid scheme-like stage, faking its "worth" to trick a buyer]