SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-28T11:02:43-06:00SparkFun ElectronicsCustomer #732606 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #732606urn:uuid:f9ccbcdd-74e6-4070-1d53-9862ea38f3682021-01-31T02:39:17-07:00<p>Does anyone know if the Arduino library has been ported to Python?
Thanks in advance.</p>
Customer #1441770 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #1441770urn:uuid:980d5f94-29d5-3bca-3b17-d0c43e39035b2018-09-28T13:40:25-06:00<p>a question, I have to extract the TA AF PTY signals from to RDS ... The used library is this: 1-6-2011
Spark Fun Electronics 2011
Nathan Seidle,
the names of all the registers in #define are visible, how can I do ??</p>
CF on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703CFurn:uuid:86dae197-5490-af9b-4446-da3e7455ec932018-02-07T11:00:39-07:00<p>No, the decoding is done by a <em>HD radio processor chip</em> that has a CODEC for decrypting the HD stream you're receiving. They have to pay a license fee to iBiquity (the folks that own the HD radio CODEC) to make the chip, and chip manufacturer then pass that fee onto anyone that buys the decoder chip. You end up paying the fee when you buy the chip.</p>
n0ukf on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703n0ukfurn:uuid:7548a01f-cddc-7a53-2af1-091040cb8a372018-02-07T10:16:48-07:00<p>Isn't the decoding done on the chip itself? Wouldn't the licensing then be handled by the chip manufacturer?</p>
Dr. Molt on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Dr. Molturn:uuid:6b432d25-b6f6-8003-b726-6201305cfd6e2017-10-23T12:31:33-06:00<p>My apologies, I was looking at the wrong bit. Turns out the enable bit is a perfectly good bit to use to determine whether the Si4703 is powered up or down.</p>
Dr. Molt on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Dr. Molturn:uuid:36359041-4958-11bf-8e0e-3f31db1b59502017-10-18T10:33:04-06:00<p>Any suggestions on how to determine the current power state?<p>The enabled bit resets to 0 after power up, and the disabled bit resets to 0 after power down.</p></p>
Customer #11947 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #11947urn:uuid:40d20ac4-5398-b449-b4a9-07eb6d75bdf02017-10-05T13:29:20-06:00<p>rereading the specs again - Interface voltage Vio is 3.3v. Yep, that would be the problem.</p>
Customer #11947 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #11947urn:uuid:372b315f-ee81-0cb1-9284-0ef5b86c3cdd2017-10-05T13:23:53-06:00<p>.</p>
Dr. Molt on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Dr. Molturn:uuid:d0d55ff8-c060-5c79-2656-4e5d93f5be722017-10-05T12:58:43-06:00<p>Per my understanding, no, you should not connect it to 5V.</p>
Customer #11947 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #11947urn:uuid:e257271a-de37-14b9-480f-22efd7c94fa42017-10-05T09:53:50-06:00<p>Can you run this off of 5V instead of 3.3v? The specs for the FM receiver and the audio amp say that 5V is OK. Adding 3.3v logic level converter is a bit of a hassle when everything else in the system in 5V and the parts are 5v capable. I'm going to be connecting it to a SparkFun RedBoard which is 5V.</p>
Dr. Molt on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Dr. Molturn:uuid:2baa9347-dca7-7725-4069-8a7ff260ced32017-09-26T08:44:07-06:00<p>Yes, 995 would be used to tun to 99.5.</p>
Dr. Molt on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Dr. Molturn:uuid:75a7818b-ac4d-8e00-fca9-8f7c81c16d872017-09-26T08:42:46-06:00<p>What can be done to eliminate the popping sound when enabled?</p>
Jeff Thompson on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Jeff Thompsonurn:uuid:e6567f5c-4da3-cf68-9c5d-6eca841fc18c2017-06-06T14:31:33-06:00<p>Yeah, two months of (sporadic) work later and it doesn't look easily possible. It would take some doing, but could be achieved with the TinyWireM library + some mods on the Sparkfun lib.</p>
Jeff Thompson on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Jeff Thompsonurn:uuid:3ec066fa-dbf0-2d87-8cff-6cd88e3857dc2017-06-06T14:30:47-06:00<p>Can someone confirm that FM frequency is set as a three-digit integer (ie 99.5FM would be 995)? In the Hookup Guide it shows channels like 996, or is that for non-US radio frequencies?</p>
CF on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703CFurn:uuid:afc0872c-2410-0875-512d-0810790a62ab2017-04-04T06:39:31-06:00<p>We don't have plans for a Si4777 breakout board unfortunately. Even if we did, the licensing costs associated with HD radio would probably make a breakout cost somewhere north of $100. Until the company that owns the patents on HD radio releases details on how to decode their CODEC without paying a fee, you're never going to see a HD radio receiver in the hobby electronics world.</p>
n0ukf on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703n0ukfurn:uuid:7409af4d-6f92-e6b0-d1ab-53954f1085ef2017-04-03T18:02:00-06:00<p>Is there any chance we can get the Si4777 on a board? I want HD radio and don't have the equipment to solder SMDs (so far I can only find the bare SMD chips for HD).</p>
Jeff Thompson on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Jeff Thompsonurn:uuid:3c2dd796-ca38-0f4a-40ee-f22662079be22017-04-03T09:16:47-06:00<p>Thanks M-Short! I've compiled lots of things for ATtiny chips in the past, but I think the interrupts etc are different. The library wouldn't compile for me for ATtiny, but not because of memory I don't think.</p>
M-Short on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703M-Shorturn:uuid:c1ff6422-96d8-8173-0606-2feebf06fbbf2017-04-03T09:11:55-06:00<p>In theory yes. I would start by looking for an addin to allow the Arduino IDE to compile for the ATtiny85. The IDE already lets you program using an AVR programmer so you would just need to hook that up. The only other issue is memory. Make sure the code will actually fit on the ATtiny85. Basically though once you get the IDE to compile for the ATtiny85 you should be good to go.</p>
Jeff Thompson on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Jeff Thompsonurn:uuid:ab8b9264-2ea2-76e0-eb06-6b46b5d831f32017-04-01T14:36:29-06:00<p>My embedded programming is pretty bad – would it be possible to adapt the library for an ATtiny 85?</p>
JRThro on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703JRThrourn:uuid:4a2c6364-bf29-a6a3-265e-dabb2a47cdc62017-02-13T12:57:21-07:00<p>Apparently not here.</p>
Toni_K on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Toni_Kurn:uuid:c080d44b-4773-545b-6e6d-7470a3ae83db2016-03-22T15:36:57-06:00<p>It's not recommended. A better set up for you would be to use a 3.3V Pro Mini as the communication and power interface with this board, and then hook the lipo up to the Pro Mini, which will regulate the power properly.</p>
NightEule5 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703NightEule5urn:uuid:09757f93-6385-44eb-7fb9-f2f7145767112016-03-20T17:29:20-06:00<p>Could the board be powered by a lithium polymer battery by any chance? The datasheet for the chip itself says the max voltage is 5.5 volts for digital and analog supply, however the max for interface supply indicates 3.6 volts. That max is 0.1 volts under what a li-po battery provides. So will it fry the ic?</p>
Toni_K on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Toni_Kurn:uuid:3e45db34-c7b5-9f26-44f6-f8099feb2b722016-02-25T13:25:41-07:00<p>You certainly could bypass the amp, but you'll probably need to cut the traces to the amp and solder jumper wires onto the break out board. I'd recommend taking a look at the Eagle files to see where the best bet would be for cutting those traces. Keep in mind you'll need to scrap away the solder mask on the traces to solder additional wires on there.</p>
hindumagic on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703hindumagicurn:uuid:a5a26570-a33c-ada8-0d0a-8d3ca7a286792016-02-23T18:43:37-07:00<p>Is it possible to bypass the amplifier? I have this board but want to integrate it with a bluetooth audio board so I'll need to use a separate amp. I'd prefer to make use of this breakout board, since I have it lying around. Thanks!</p>
M-Short on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703M-Shorturn:uuid:79598370-1577-030f-0cf6-c5dca57e9f042015-10-12T09:19:12-06:00<p>Make sure you have the board hooked up correctly, specifically the I2C lines as the pins change depending on the microcontroller. If you are still having problems try emailing techsupport@sparkfun.com.</p>
Customer #366196 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #366196urn:uuid:1c2e3e2f-1e37-a8c1-0b79-36cde74f17692015-10-12T00:08:17-06:00<p>The chip keeps getting struck in radio.init(). In example, it prints "init" in "setup()" function but does not go to "void loop ()" main program. Any suggestions to diagnose or known issue?</p>
BrentBoren on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703BrentBorenurn:uuid:42f2a8de-2307-6237-1a96-08adfba7c6162015-09-28T17:08:09-06:00<p>While not exactly the details of Shawn's hack, I posted a link to some <a href="https://github.com/BrentBoren/Si4703-FM-Radio-with-OLED-Display.git" rel="nofollow">code</a> with (I think) the same functionality that Shawn demonstrates in his video in a review I just posted.</p>
Shadyman on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Shadymanurn:uuid:f39cbd36-6de8-be5d-4d64-c78d54ebf00b2015-09-21T17:57:14-06:00<p>Yep. This one uses the headphones as an antenna, for better or worse.</p>
Shadyman on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Shadymanurn:uuid:01f850d9-b173-0c99-3b4b-2a05f778e2002015-09-21T17:56:31-06:00<p>I read that it's actually quite rare for stations to transmit RDS time. Obviously, YMMV based on your location and your radio stations.</p>
JRThro on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703JRThrourn:uuid:da3a2441-2043-72be-7c27-dc4e0ac3ace72015-08-17T12:17:00-06:00<p>Which Li-Po battery does Shawn recommend for the FM Stick?<p>That's a really cool little portable FM radio that I will be looking into building if my old house ever sells and I can spend money at Sparkfun again. After I get back from two weeks in Scotland with my wife, that is.</p></p>
M-Short on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703M-Shorturn:uuid:1199830f-6ad2-9b8e-a4b6-6f455450fb772015-08-17T09:43:32-06:00<p>Yep, that's the one. Also available on a <a href="https://www.sparkfun.com/products/8236" rel="nofollow">breakout board</a></p>
Customer #307167 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #307167urn:uuid:5fc46448-797b-13cd-19a8-437739d7dbd92015-08-16T15:34:38-06:00<p>that's it. Thanks.</p>
Customer #89174 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #89174urn:uuid:56cf614e-00ff-3e11-0f47-6b2278e224822015-08-15T19:20:03-06:00<p>Looks like <a href="https://www.sparkfun.com/products/8184" rel="nofollow">this</a>.</p>
Customer #307167 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #307167urn:uuid:2a0d38a6-26df-2ea4-cdca-e0f3340c65be2015-08-15T12:07:03-06:00<p>No, I meant the rocker/pushbutton switch used for display selections.</p>
M-Short on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703M-Shorturn:uuid:d9a8d7f3-cf32-859b-d9f7-40933317b5992015-08-14T13:30:54-06:00<p><a href="https://www.sparkfun.com/products/8837" rel="nofollow">This guy</a> should work.</p>
Customer #307167 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #307167urn:uuid:cce03c79-8fac-5b4a-3e74-4c46dd95ea9a2015-08-14T13:25:18-06:00<p>Where can I get that small rocker switch you use in the video?</p>
scharkalvin on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703scharkalvinurn:uuid:9a6ab57e-b7ed-0a47-b2e4-48b7b22aeda62015-08-14T09:34:29-06:00<p>OK, I'm guessing Shawn was listening to "Light my Fire" by the Doors.<p>OH and PLEASE put the details of Shawn's hack on line including the hookup with the two or three other boards he used and the source code.</p></p>
Beemer on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Beemerurn:uuid:3eb81e52-0c09-5128-0bbf-bb6c72d92b362015-08-14T09:15:51-06:00<p>Is the code for the FM Stick available?</p>
Jarrod S on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Jarrod Surn:uuid:c5010842-d066-bfef-0494-43370122b89f2015-08-14T09:15:21-06:00<p>Has anyone used this to decode time from a RDS signal?</p>
Jarrod S on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Jarrod Surn:uuid:8ef419b8-21b2-de2a-86da-9b29e102ee882015-08-14T09:12:59-06:00<p>If you wanted to do that you should look at https://www.sparkfun.com/products/11083 it breaks out the antenna pin. Based on the schimatic, I assume this board expects the headphone wire to be the antenna.</p>
Customer #480079 on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703Customer #480079urn:uuid:17e27ced-b120-bae5-00ba-53b4e2767fb62015-08-14T09:05:33-06:00<p>What if I wanted to use an external antenna?</p>
One Chris Two Chris Red Chris Blue Chris on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703One Chris Two Chris Red Chris Blue Chrisurn:uuid:84bb532b-6ce4-4963-a099-0c6458fb97822015-08-14T08:36:37-06:00<p>Heck yeah! <a href="https://www.sparkfun.com/products/13003" rel="nofollow">This is the breakout</a> that Shawn used in the video. It is the same OLED that goes into our <a href="https://www.sparkfun.com/products/12923" rel="nofollow">MicroView</a> module.</p>
E.Mk on WRL-12938 - SparkFun FM Tuner Evaluation Board - Si4703E.Mkurn:uuid:ac3903cb-8b98-a3c6-b3ec-37da7c93f3712015-08-14T07:14:51-06:00<p>sorta off-topic, but whoa, that is one small LCD from that example video! Do you guys carry that LCD?</p>