Learn on the fly : A simple UHF beacon for fox hunt or lost rc model using arduino and 433MHZ rf module
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Human history of advancement of things. Robot to BLE beacon with a button click - Jobs and Paid Consultancy - Arduino Forum
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5pcs NRF51822 Beacon Module Bluetooth RSSI Positioning Module Geekcreit for Arduino - products that work with official Arduino boards
Arduino & ARM Ham Radio Projects - Web controlled radio beacon transmitter https://disk.yandex.ru/d/5AMr1-0yVxVuTQ | Facebook
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