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PIC based Weather radio

This one is still a pending project, but you might give it a try as it’s a interesting one. In this project a weather radio is tuned using PIC and as soon as there is a weather alert, it’s broadcasted on the LCD as well as the speaker of the weather radio. As of now, PIC powers up, resets and powers up the radio, then tunes the radio via I2C to 162.55MHz. It finishes up by reading back the status and then dumps the Tuned Frequency and RSSI (Received Signal Strength Indicator) on to the LCD.

PIC_weather_radio

The output from the audio amplifier is a little weak and hence might require a second stage amplifier. The author also wants to add buttons for “quick tune” to the common frequencies (.40, 425, .45, etc.) and one additional monitor/standby switch. The PIC is able to tune the weather station which was brought from spark fun using I2C protocol. The hardware schematics have been provided on the website and also what work has been done till now.

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