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The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category 'Functional'. The cookie is used to store the user consent for the cookies in the category 'Analytics'. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. The AVR-GCC running under Windows (WinAVR) is being used to write the software in C. This is suitable for the LCD and CYWM6935 which operates from 2.7V to 3.6V.

A single 1N4004 diode was placed between the battery and the circuit in order to limit the voltage down to 3.6V due to the 0.6 voltage drop. The device can be powered from two kinds of batteries including Li-Ion and Ni-Mh with 3.6V-4.2V voltage range. The LCD was obtained from a Nokia 3410 which uses a PCD8544 controller to make it easier to be operated. Using the internal oscillator, the microcontroller was chosen to run at 4MHz since the ATmega8 can perform even when running with low internal clock rates. The chosen microcontroller is the ATmega8 that runs at 3.3V since both the CYWM6935 and the LCD module are 3.3V devices. The project aims to construct a 2.4GHz spectrum analyzer that can view signals and other dominating channels used by surrounding transmitters such as Zigbee, WiFi, or Bluetooth.Ĭompared to other 2.4GHz spectrum analyzer built around the CYWM6935 module, this project features some improvements including portability, graphical LCD, and being microcontroller based.

Nokia 2.4 ghz