Testing code of NRF24L01 and Ultrasonic Module

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Some of you might be working on the robot and looking for code of the modules. And here are the source code links for your reference.

NRF24L01 based on 51 / ATMEGA32 / Arduino platform
http://www.icstation.com/ebay/IC/All%20 ... s/1388.zip

HC-SR04 Ultrasonic Module based on C51 / AVR / Arduino platform
http://www.icstation.com/ebay/IC/All%20 ... s/1389.zip