Velleman VMA444 Manual
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Velleman VMA444 Manual

Si4703 fm tuner evaluation board
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VMA444
SI4703 FM TUNER EVALUATION BOARD
USER MANUAL

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Summary of Contents for Velleman VMA444

  • Page 1 VMA444 SI4703 FM TUNER EVALUATION BOARD USER MANUAL...
  • Page 2  Nor Velleman nv nor its dealers can be held responsible for any damage (extraordinary, incidental or indirect) – of any nature (financial, physical…) arising from the possession, use or failure of this product.
  • Page 3 Overview The VMA444 is a radio and RDS receiver combined with an efficient 150 mW audio amplifier. This module is ideal if you want to create your own clock radio or if you want to add FM functionality to your projects.
  • Page 4 VMA444 Load the example fm_rds_test sketch. Compile and upload this sketch and listen to the radio! Do not forget the earphones as antenna. The volume, channel and RDS controls can be found by opening the serial monitor. See the example below: V.
  • Page 5 VMA444 Code #include <VMA11.h> #include <Wire.h> int resetPin = 2; // these are the connections between VMA444 and the UNO VMA100 int SDIO = A4; int SCLK = A5; VMA11 radio(resetPin, SDIO, SCLK); int channel; int volume; char rdsname[9]; char rdsrt[65];...
  • Page 6 VMA444 channel = radio.seekUp(); displayInfo(); else if (ch == 'd') channel = radio.seekDown(); displayInfo(); else if (ch == '+') volume ++; if (volume >=16) volume = 15; radio.setVolume(volume); displayInfo(); else if (ch == '-') volume --; if (volume < 0) volume = 0;...
  • Page 7 © COPYRIGHT NOTICE The copyright to this manual is owned by Velleman nv. All worldwide rights reserved. No part of this manual may be copied, reproduced, translated or reduced to any electronic medium or otherwise without the prior written consent of the copyright holder.
  • Page 8 • Velleman® can decide to replace an article with an equivalent article, or to refund the retail value totally or partially when the complaint is valid and a free repair or replacement of the article is impossible, or if the expenses are out of proportion.

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