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![]() ![]() We’ll hook them up and use a very extensive library to facilitate communications between them.Īfter we get them working we will use them to build something fun – a wireless joystick control for the Robot Car Base that we worked on earlier.īefore we begin let’s examine the nRF24L01+ and some of the factore you need to take into account when designing wireless devices. The nRF24L01+ is available in a number of different configurations, in this article I’ll look at a couple of the more popular ones. This band is free to use for low power devices without a license and in some cases can be useful up to a kilometer (although you should expect much shorter ranges without a special antenna). This is an inexpensive module that provides 2-way communications using the 2.4 GHz band. In this article (and in the corresponding video) I will examine one method of Arduino wireless communications, the nRF24L01+ module.
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