Elektronik / Mikrodenetleyici Projeleri/

PIC16F877 ile Uydu Anten Kontrolü

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Basit bir devre gibi görünüyor fakat biraz PIC Konusunda bilgi sahibi olmak gerek devrenin kontrolü bilgisayar üzerinden rs232 portundan yapılıyor

istek üzerine yayınlanan bir devre
kaynak sitede detaylı açıklama (ingilizce) ve kaynak asm ve hex kodu var bu konu hakkında fazla bilgim yok ama PIC ile uğraşan kişilerin işine yarayabilir yada feyz alabilirler

Satellite tracking is done most commonly on a computer with a satellite tracking software. The FODtrack ( by XQ2FOD ) software, which I am experimenting with this control interface, is available for download at www.amsat.org. It uses serial ( COM ) port ( baud 1200 ) on your PC to drive the external azimuth and elevation rotors to position the antenna via the interface described here. The data format of the GS-232 output command from the COM port is in the form of
Wxxx yyy, where xxx is the azimuth and yyy is the elevation angle. GS-232 command received via the PIC16F877 uart serial port is converted and stored as 8-bits binary azimuth and elevation target position values into the microcontroller on-chip ram area. Analog input signals from the rotators position feedback pots ( 0 to 5 volts for azimuth from 0 to 360 degrees, 0 to 2.5 volts for elevation from 0 to 180 degrees ) are converted by the on-chip ADC into binary values which subsequently are compared with the target position values to produce outputs to control the up, down and left, right switches.

PIC16F877 microcontroller uart serial port baud rate is 1200 and the crystal clock frequency is 10 MHz. The two-axis ( azimuth and elevation ) rotor drive output pins are RB1, RB2, RB4 and RB5. Rotors position analog input pins are AN0/RA0 and AN1/RA1.

Kaynak: geocities.com/yyz228/ alternatif link: PIC16F877 ile Uydu Anten Kontrolü

Dosya indirme LINK listesi (TXT formatında) link-1328.zip şifre-pass: 320volt.com

  • şahin

    bu devre çok pahalı ama olsun ben bunu yapıcam.. :cry: