OPEN SOURCE TELESCOPE CONTROLLER PUTS SMART FEATURES IN OLD TELESCOPES

In times like these, we all need to look beyond ourselves. This project might help: OnStep is an open-source telescope controller, a device that controls a telescope to point at something interesting in the sky. Want to take a look at M31? Use an app on a PC or smartphone, select the object and the OnStep will pan and tilt your telescope until the Andromeda Galaxy pops into view. Smart telescopes are not ne ...

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SUPERBLY SYNCHRONIZED SERVOS SWAYING SOFTLY

LEDs and blinky projects are great, and will likely never fade from our favor. But would you look at this sweeping beauty? This mesmerizing display is made from 36 micro servos with partial Popsicle sticks pasted on the arms. After seeing a huge display with 450 servos at an art museum, [Doug Domke] was inspired to make a scaled-down version. What [Doug] didn’t scale down is the delightful visuals ...

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Controllers and Sensors using arduino

John has been working to recover components from old power supplies and available trash electronics, in order to build controllers to power stepper motors and other mechanisms for the FabLab. Intro The Arduino microcontroller board is able to supply a current of 40mA from its output connections. These digital outputs are fixed at 5V “ON” or 0V “OFF”. This is adequate for working with LEDs but devices such a ...

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Controllers and Sensors using arduino

Intro The Arduino microcontroller board is able to supply a current of 40mA from its output connections. These digital outputs are fixed at 5V “ON” or 0V “OFF”. This is adequate for working with LEDs but devices such as motors, solenoids, high brightness LEDs etc. may require much higher currents and voltages. To achieve this an interface in between the Arduino and the device can be made from locally source ...

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