Devices/Open Hardware Galore, Mostly Arduino and Raspberry Pi
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Should You Erase the ESP32 Flash Memory in Arduino IDE?
Recently, I got into a mess with the Arduino IDE going wonkers with a variable on my NodeMCU32-S. I wanted to make a Wi-Fi access point with it, but it just wouldn't change the variable for the SSID name. Turns out, it still had data from an old project of mine when I used it for the same purpose a few months back. In a way, this was a discovery for me.
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Raspberry Pi Powered PiBoy Mini Brings the Arcade to Your Pocket
Now taking pre-orders, ExperimentalPi's latest handheld shrinks the Game Boy form factor but loses none of the fun.
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Best Stemma QT, Grove Add-Ons for Raspberry Pi and Arduino
Stemma QT and Grove are solderless connections to connect a plethora of different sensors, displays and components to your Raspberry Pi, Arduino or ESP32. We show you the best that we have personally used in projects.
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TinyTVs Offer a Bitesize Raspberry Pi Dose of Television
Two tiny televisions, powered by the Raspberry Pi RP2040 play up to 40 hours of video and can stream your desktop.
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Controlling a robot arm over the [Internet]
Engineer Zero started with a cheap OWI-535 “Robotic Arm Edge” kit, which isn’t much more than a toy. It comes with a cheap little controller that lets the user manually operate the arm, but that’s it. To upgrade it into a “real” robot arm, Engineer Zero connected its five motors to an Arduino Uno board through L9110 motor drivers. That let them control the robot arm from their computer and provided the potential for other kinds of control.
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Controlling a Robot Arm over the Internet
Anyhow, the reason I dwell on the color coding of the jumpers is because I originally tested the system with just one motor controller connected to one motor, and it was a confusing jumble because I just randomly attached jumpers to Get ‘Er Done. Then I looked at the mess and wondered, “How am I going to do this for five motor controllers without becoming totally confused?” But then I used color coding, and I had only a couple wiring issues, one of them being the classic bungle of forgetting to tie the grounds together.
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Digital barometer channels vintage aesthetics
The components for this project include an Arduino Nano, a BME280 temperature, humidity, and pressure sensor, and a 16×4 character LCD display. Normally, a display like this can only show alphanumeric characters, but Pavleski was clever and used custom character blocks to create the bar graph. The components reside inside of a PVC enclosure with self-adhesive wallpaper to give it a classic look.
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Engineering students design Raspberry Pi Pico CubeSat platform
While banging on about NASA and the astronauts (yes, plural, there were four) we saw at Space Center Houston a couple of weeks ago, I was reminded of this space-themed project closer to Pi Towers. Engineering students at Harlow College in Essex, UK have designed a CubeSat platform to take their homemade hardware to space.
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Active Pro can debug up to 4x MCUs simultaneously
The company Active Firmware Tools has just introduced the Active-Pro Firmware Debugger which can simultaneously capture the output from up to four microcontrollers, analog channels, digital logic channels, hardware decoded bus traffic, current measurements and decoded packet information.