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Thursday, July 21, 2016

FM radio with RDA5807


   A FM radio with RDS info and digital volume can be made with RDA5807 module, who is similar as TEA5767 (pcb board & pins).
   For easy connexion, I made a adapter board from 2mm distance pins to 2.54mm:
   I found a russian article with fm radio who use RDA5807 chisp at http://full-chip.net/arduino-proekty/97-cifrovoy-fm-priemnik-na-arduino-i-module-rda5807-s-graficheskim-displeem-i-funkciey-rds.html
 
with this schematic:
   In this article is a movie named RDA5807 ФМ приемник на ARDUINO

  In russian sketch I found some words in spanish language and after few search I see article Arduino Radio RDA5807 con RDS LCD Nokia 3310
   I made some changes in sketch for optimal display of frequence value (my sketch is put on my Github channel - RDA5807_fmradio_3buttons_ver0.ino) for use with my configuration:
  I made few test without audio amplifier:
after that, I put PC speaker at radio module, see RDA5807 FM radio with RDS info on Nokia 5110 display using Arduino (3) movie:
   In I push MENU button, the cases are:
- AUTOMATIC SHEARCH:
- INFO:
- MANUAL SEARCH:
- VOLUME (16 steps, from 0 to 15):
   I made some changes in sketch and now frequency and step volume are stored in EEPROM memory, see RDA5807_fmradio_3buttons_ver1.ino, see results in next movie: RDA5807 FM radio with RDS info on Nokia 5110 display using Arduino (4)

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