chicken 630 Posted December 20, 2014 Author Share Posted December 20, 2014 I didn't see any information about the underlying chipset. But if it's a Si446x with a STM8 it could be workable, if you manage to reprogram the MCU and at least two GPIO pins are connected to it. Quote Link to post Share on other sites
chicken 630 Posted January 11, 2015 Author Share Posted January 11, 2015 Ain't she pretty? tripwire, Lgbeno, PTB and 7 others 10 Quote Link to post Share on other sites
PaulTech 2 Posted January 25, 2015 Share Posted January 25, 2015 Well, after having a look in my spare parts section I realized I now have quite a number of FM data receiver modules and then I remember this project I have been wanting to look at. The asking price for this old software seems a bit steep and I was wondering if you might like a look also, i.e do the work. https://www.coaa.co.uk/epirbplotter.htm It seem a reasonable match to the AIS ,marine safety etc. And since it is on 406MHz not too many alterations would need to be done to the standard 433MHz board. My concept is to include a GPS module with the receiver to provide some indication of direction and distance to a GPS EPIRB transmission. As the last couple of GPS modules I bought only cost US$15 it doesn't seem like too much extra to make the receiver portable. 1st step try and record an EPIRB signal. Quote Link to post Share on other sites
duonglan 0 Posted March 8, 2015 Share Posted March 8, 2015 Ain't she pretty? IMG_1093.jpg how much ? where i can buy ? Quote Link to post Share on other sites
chicken 630 Posted March 8, 2015 Author Share Posted March 8, 2015 @@duonglan sent you a PM. Quote Link to post Share on other sites
duonglan 0 Posted March 12, 2015 Share Posted March 12, 2015 Good news for everyone having difficulties sourcing the Si4362 radio IC. I verified that the transceiver Si4463 works with dAISy. This probably also applies to Si4460 and Si4461. Besides being more widely available through distributors, more adventurous souls can even find these ICs on Aliexpress. Even better news for those that want to recreate my project with minimal effort: Si446x based radio modules are sold on eBay and elsewhere. I bought the E10-M4463D from eBay for $7.99: http://www.ebay.com/itm/100mw-433MHz-SI4463-Wireless-Transceiver-Module-With-Antenna-2100m-/151243201316 I chose this module over others because all pins of the radio are broken out to headers. IMG_0844_before.jpg Unfortunately two pins (GPIO2 and GPIO3) are reserved to control the RF switch that connects the antenna with RX or TX channels. But after a few minor changes to my code I had dAISy working. Here's the branch on Github: https://github.com/astuder/dAISy/tree/E10-M4463D The wiring changed: GPIO0 -> P2.0 NIRQ -> P2.5 GPIO2, GPIO3 -> no longer connected to the LaunchPad As the modules are built for 433 MHz and AIS is using 162 MHz, I had to replace antenna and passives on the RX side. IMG_0851_after.jpg The new passives from left to right are (ignoring the obvious 0-ohm resistors) 11pF, 150nH, 13pF. As you can see the 0603 components are a very tight fit. I reflowed them with a hot air station instead of using a soldering iron. The clunky thing on the right is a BNC connector, SMA probably would have been a more elegant fit Technically, it's still not ideal. The traces might be impedance matched to the original frequency. However a quick real-world test demonstrated similar sensitivity as my original breakout boards. EDIT: added wiring information EDIT: added link to Github you wrote GPIO0 -> P2.0 (LaunchPad) NIRQ -> P2.5 ((LaunchPad ) GPIO2, GPIO3 -> no longer connected to the LaunchPad I can't find NIRQ on board SI4463 433MHz buy on ebay It's mean IRQ ? "The new passives from left to right are (ignoring the obvious 0-ohm resistors) 11pF, 150nH, 13pF. As you can see the 0603 components are a very tight fit. I reflowed them with a hot air station instead of using a soldering iron. The clunky thing on the right is a BNC connector, SMA probably would have been a more elegant fit " 11pF, 150nH, 13pF ,0603 components ? Can you draw a diagram ? i want buy a SI4463 433MHz and modify it Quote Link to post Share on other sites
chicken 630 Posted March 12, 2015 Author Share Posted March 12, 2015 @@duonglan NIRQ and IRQ are the same. I assume you're referring to this or a similar listing, which looks identical to the module I bought: http://www.ebay.com/itm/E10-M4463D-SMA-433MHz-Wireless-Transmission-Module-1900m-10mnW-Serial-Port-/121471383928?pt=LH_DefaultDomain_0&hash=item1c48423978 (except for the SMA connector, which mine didn't have) Here's an annotated image of the patched module. Let me know if you have any other questions. duonglan 1 Quote Link to post Share on other sites
duonglan 0 Posted March 17, 2015 Share Posted March 17, 2015 thanks , i bought a http://www.ebay.com/itm/E10-M4463D-SMA-433MHz-Wireless-Transmission-Module-1900m-10mnW-Serial-Port-/121471383928?pt=LH_DefaultDomain_0&hash=item1c48423978, hope i will get it soon and do it for myself like you But i don't understand , how I can upload 4463 WDS configuration ? Connect M4463D-SMA 433MHz Wireless Transmission Module and MSP-EXP430G2 v1.5 LaunchPad. Using MSP-EXP430G2 v1.5 LaunchPad upload 4463 WDS configuration ? sorry , I never used MSP-EXP430G2 v1.5 LaunchPad before, I usually used Arduino Quote Link to post Share on other sites
chicken 630 Posted March 17, 2015 Author Share Posted March 17, 2015 The radio on its own does not much. It needs an MCU to control it and talk to the computer, which is the MSP430 Launchpad in this case. See the first post of this thread and just replace the custom breakout board with the Ebay radio (minus the changes in wiring as documented). There are several options to program the LaunchPad. For this project I used TI's full IDE Code Composer Studio (CCS). http://www.ti.com/ww/en/launchpad/software.html The repository I published on Github includes the CCS project file. https://github.com/astuder/dAISy Simply copy the whole tree into your CCS workspace and open it in CCS. From there you can compile the code and program the LaunchPad. The radio configuration data generated by WDS is in the radio_config.h source file. dAISy USB is the standalone version of all this, where I designed and built my own PCB that includes radio and MCU on one board. rookie and bluehash 2 Quote Link to post Share on other sites
haggen 0 Posted April 8, 2015 Share Posted April 8, 2015 Ain't she pretty? IMG_1093.jpg @chicken: I have struggled with SDR and AIS decoding on a Macintosh with little success for some time. I am just about ready to give it up and use your dedicated module if it is still for sale? Quote Link to post Share on other sites
chicken 630 Posted April 8, 2015 Author Share Posted April 8, 2015 Hi @@haggen Yes, I still sell them. $55 plus shipping. Currently I'm awaiting PCBs from China, so it will take a few weeks before I have a new badge available. Just send me a private message here on 43oh if you're interested. I don't know how well established AIS is on lakes in Switzerland, MarineTraffic only reports a few ships around the port of Basel. So your attempts via SDR might have failed because there's no signal to receive, a situation where dAISy will fail as well. haggen 1 Quote Link to post Share on other sites
JonnyBoats 40 Posted April 9, 2015 Share Posted April 9, 2015 If you have addressed this previously, I apologize in advance. This thread is getting quite long. The better commercial AIS units have dual receivers so that it can monitor both AIS channels simultaneously. Have you considered implementing this? chicken 1 Quote Link to post Share on other sites
chicken 630 Posted April 9, 2015 Author Share Posted April 9, 2015 The better commercial AIS units have dual receivers so that it can monitor both AIS channels simultaneously. Have you considered implementing this? Currently dAISy does channel hopping. It listens on one channel for a few milliseconds, and if there's no signal jumps to the other and so forth. It can also be configured to only listen on one channel without hopping. From experimentation with that option, I don't think I miss a lot of messages due to hopping. Implementing two separate receivers on one device is on my list, but I didn't do more than scribbling down a few initial thoughts. I'd basically need to duplicate the radio IC with its impedance matching and decoupling passives and probably also the crystal. And of course a splitter. I should have enough pins left on the MSP430F5508 used on dAISy USB, but definitely would need to increase the PCB size. Quote Link to post Share on other sites
chicken 630 Posted April 19, 2015 Author Share Posted April 19, 2015 Phew, this is starting to get out of hand One of the buyers of an earlier prototype 3D-printed a nice case: That's the form factor I originally envisioned, but never found a matching off-the-shelf case. The BNC connector is too big for most "USB stick" shaped enclosures. I recently updated the firmware to output a serial stream on the spare pins. Works great with a HC-06 Bluetooth module. Obviously won't work if kept within the "official" metal case. Quote Link to post Share on other sites
abasir 2 Posted May 9, 2015 Share Posted May 9, 2015 Here's the bluetooth enabled daisy... he he he... Thanks Adrian for piping the data to the TX pin on the PCB... working like a charm with HC-05/06 module... bluehash and chicken 2 Quote Link to post Share on other sites
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