An intermediate project involving long range, low power communication between two Arduino boards with the help of the Reyax RYLR896 module.
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Make this inexpensive and very useful device to extend the range of your TV remote. Just a 555 type of thing. Follow the circuit and files.
For this project, a LIDAR Lite V3 range finder was used in order to get a range and send said range to an LCD screen via a Particle Photon.