sparkfun Si4703 User Manual

12/13/2016 Si4703FMRadioReceiverHookupGuidelearn.sparkfun.com
https://learn.sparkfun.com/tutorials/si4703fmradioreceiverhookupguide?_ga=1.107488962.1700868332.1447681481 3/4
Thesefavoritestationsarepredeterminedinthesketch,sofeelfreetochangethosetoyourownfavoritestationsifyouwouldlike.
elseif(ch=='a')
{
channel=930;//RockFM
radio.setChannel(channel);
displayInfo();
}
elseif(ch=='b')
{
channel=974;//BBCR4
radio.setChannel(channel);
displayInfo();
}
Keepinmindyouwillneedtouploadthecodetotheboardagaintoupdatetothenewstations.Youcanthendirectthetuningeitherupordown,andcontrolthevolume
oftheboard.Forexample,totunetostation95.7FMhereinBoulder,Isentthecommands:u,u,+,+,+,+,+,+,+,+,+,+,+,+,+,u,u,u,u,u,u.Thisresultsinthe
followingintheserialterminal.
Forthisexample,Iamusingmyheadphonewireastheanntena.Becauseofthis,IwasnotnecessarilyabletoreceivestationsthatIoftencanwhenI’mnotusinga
headphonewireasanantennawhileconnectedtomycomputer(EMIissomuchfun!).Playaroundwithmovingaroundorusingdifferentheadphonewiresandseehow
radioreceptioncanchange.
ResourcesandGoingFurther
GoingFurther
NowthatyouhaveyourFMTunerupandtunedtoyourfavoritestations,youcanstarttweakingyourcircuit.Youcouldaddinasensortotuneyourboardforyou,orhave
itsetuponatimerwithaclock.Ifyoucomeupwithareallycoolprojectormod,letusknow!We’dlovetohearaboutit.
AdditionalResources
Ifyouhaveanyfeedback,pleasevisitthecommentsorcontactourtechnicalsupportteamatTechSupport@sparkfun.com.
Checkouttheseadditionalresourcesformoreinformationandotherprojectideas.
Si4703Datasheet
TPA6111A2Datasheet
AN230ProgrammingGuide
AN243ProgrammingGuide
GitHubRepositorywithuptodatecodeandboardfiles

sparkfun Si4703 Specifications

General

Brand	sparkfun
Model	Si4703
Category	Receiver
Language	English