Wireless transceiver for control of mobile embedded devices

This article deals with the control of mobile embedded devices via wireless transceiver. The only way how to control the mobile devices such as robots, is to use a wireless data transfer. The possible wireless transceiver solution using the nRF24L01 transceiver by Nordic Semiconductor, which works in license-free worldwide 2.4 GHz ISM frequency band, is presented. Overview of this chip is included at the beginning of this article. The main part of this article deals with the design of a communication protocol. Then some optimizations of this protocol to improve its performance and determinism are discussed. In the last part, the results of measurement of some data transfer characteristics are presented.