The South Florida Science Center recently commissioned a beautiful new 10” aperture refactor telescope. Its dome, however, was opened by hand; so in an effort to modernize this part of the setup, Andres Paris and his brother “patanwilson” added a windshield wiper-style DC motor to automate the process.
The “window to the heavens” is now operated by an Arduino Uno via a high current H-bridge capable of passing along up to 20 amps. User interface is provided by an IR remote control and reed switches stop the door’s motion at the appropriate points.
A pair of 12V batteries enable the system to move within the dome and the voltage displays — that can be turned off remotely — to show how much power is left.
As part of Arduino’s expanding relationship with Arm and continuing commitment to professionals, Arm Pelion Device Management users can now seamlessly use Arduino IoT Cloud to quickly create IoT applications.
Combining the speed of application development of the low-code Arduino IoT Cloud with the secure, scalable lifecycle management features of Arm Pelion Device Management brings the best of both worlds.
The integration enables Pelion Device Management users to import all their resources via the Pelion API and translate them into Arduino IoT Cloud properties. They can see and manage everything in the cloud, with the Arduino IoT interface (web or mobile client) providing the simplicity for designers to focus their efforts on the IoT application, creating control panels and summary dashboards. Scalability is a fundamental of the Pelion Device Management service, and new devices will automatically appear in the Arduino IoT Cloud as soon as they are registered in Pelion.
If you are an existing client of Pelion Device Management and would like to know more about the integration with Arduino IoT Cloud and the professional services available from the Arduino Pro team, please contact us here.
Stars appear to stand still, but wait a few minutes and they won’t be in quite the same place. This means that if you want to take a long-exposure image of the sky with your DSLR you’ll have to either embrace the streaks, or use tracking hardware to compensate for this movement. Naturally, this specialized equipment can be quite expensive, but a seen here, you can now make your own 3D-printed OpenAstroTracker controlled by an Arduino Uno.
The device features a 16×2 LED display/keypad shield, along with an optional Bluetooth module for interface. When set up, it slowly rotates the camera to compensate for star movements via two steppers on a gimbal assembly.
You’ve got your design ready to go, you know you have the right components… but where exactly did you place that particular resistor? With the Resys drawer system by Lynlimer, you no longer have to wonder — just type in the needed value and the proper drawer lights up automatically.
The device is based on an Arduino Nano, with an LCD display for text output and a numeric keypad for value entry. The proper drawers are lit via WS2812B addressable LEDs, held in 3D-printed holders.
It’s a clever project that could be expanded to well beyond the 16 drawers now used. Code, STLs, and circuit diagrams are available in Lynlimer’s write-up if you want to make your own!
The new dashboard for the Arduino IoT Cloud comes with a host of enhanced features. It allows you to gather and display data from multiple IoT devices in one dashboard, and control those devices as required through your dashboard to fully integrate your solution.
Using widgets to connect to the properties enables you to set up a new dashboard in minutes, and you can fully customize your dashboard by: grouping devices however you like, dragging and dropping to rearrange the layout, and selecting from multiple options to visualize the data.
It is now possible to import historical data into the dashboard to provide a backdated view for all your properties, hence creating a new dashboard no longer means losing previous information. You can present the information in your dashboard as far back as you’ve been collecting the data.
A new ‘duplicate dashboard” function lets you copy any of your existing dashboards setup and layout, plus you can easily see which things are associated with which devices when setting up a new solution.
Yu-Gi-Oh! and other similar card games can be quite popular, but actually finding a group to play with can be challenging. Online games, on the other hand, have their advantages yet render your deck pretty much useless. As a way to combine these two worlds, Augusto Masetti has created a prototype Dual Disk System that will allow you to play with real cards in a virtual playfield.
To play, participants attach NFC stickers inside a card sleeve, which are scanned by an NFC reader controlled by an Arduino Uno. The card ID is then compared to the YGOProDeck API database via a computer, giving players a tactile element to this virtual competition.
Masetti’s project is still a work in progress, though we can’t wait to see the final version!