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The nRF24L01 is a small, low-price Wi-Fi verbal exchange module that keeps records over short distances. It uses radio waves to switch information at 2.4GHz, just like Wi-Fi however with decreased ...
Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi with an ESP8266 ESP-01 module. With ...