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3D Printed Telegraph Key & Sounder

3D Printed Telegraph Key & Sounder

“There are some examples of 3D printed telegraph keys, but never a complete system until now! This instructable contains all the 3D designs for both the telegraph key and sounder. Goals There are some examples of 3D printed telegraph keys …

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RF433Analyser

RF433Analyser

“This instructable creates a measurement instrument to help analyse RF 433MHz transmissions which are commonly used for low power remote communications in home automation and sensors. It could probably be easily modified to work 315MHz transmissions used in some countries …

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