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Measuring Radio Strength With The Nordic NRF24L01+ Radio


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The Next Hope recently finished with attendees wearing an MSP430 based hackable badge. Previous badges were based of Microchop PICs, but shifted to the more power efficient MSP430 line. The badges are built from a MSP430F2618 controller coupled with a NRF24L01+ Nordic 2.4 GHz radio. The badges are active RFID tags which transmit the position of each attendee a few times a second based on OpenBeacon.

 

A group known as the [M]akers Local 256(Huntsville, AL) came up with a Geiger Counter measuring radio strength from nearby badges.

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