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Si4707 weather radio [Project]
posted February 7 2014 4:33.51 by spic0m




Charles has been working on a Si4707 weather band radio project:

"Right now on the bench the 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... then off to infinite loop land. In the next few days I plan on having my seven buttons for 1Cquick tune 1D to the common frequencies (.40, 425, .45, etc..) and one additional monitor/standby switch. My radio will normally be silent and once it receives a weather alert it will un-mute the speaker and alert the LCD. The Standby/Monitor button will reset my alert."




[Via: Dangerous Prototypes]    [Link: /PNW/ELECTRONICS]
 
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