Michael Vu Posted March 11, 2016 Share Posted March 11, 2016 So I just received my Gotway MCM4 HS version today. Batteries were shipped separately and arrived earlier. When installing the batteries in the wheel, I noticed this module just loose in the battery compartment of the gotway which I believe it to be the Bluetooth module..... I tried to see where it might connect to on the main circuit board but didn't see anything obvious from the side view. Any help on this? By the way, the wheel seems to run fine without it. Link to comment Share on other sites More sharing options...
mich Posted March 11, 2016 Share Posted March 11, 2016 Images are not loading, the link provided only works when you are logged to google services. Try uploading them to other image hosting service like http://tinypic.com/ Link to comment Share on other sites More sharing options...
OliverH Posted March 11, 2016 Share Posted March 11, 2016 Can you post pictures of the main PCB and both sides of the BT module? Link to comment Share on other sites More sharing options...
Tomek Posted March 11, 2016 Share Posted March 11, 2016 the BT module should be plugged along the short edge, right next to the two big capacitors, just like them sticking outside of the PCB. Link to comment Share on other sites More sharing options...
Michael Vu Posted March 11, 2016 Author Share Posted March 11, 2016 Ok I've updated the post with the pictures Link to comment Share on other sites More sharing options...
esaj Posted March 11, 2016 Share Posted March 11, 2016 Yup, sure looks like the BT-module. You can actually find tons of similar ones (with different chip options) from Aliexpress/Amazon/ebay etc.: Link to comment Share on other sites More sharing options...
OliverH Posted March 11, 2016 Share Posted March 11, 2016 1 hour ago, esaj said: Yup, sure looks like the BT-module. You can actually find tons of similar ones (with different chip options) from Aliexpress/Amazon/ebay etc.: That's the one without BT LE support. The other one from Michael is the new one. Link to comment Share on other sites More sharing options...
esaj Posted March 11, 2016 Share Posted March 11, 2016 19 minutes ago, OliverH said: That's the one without BT LE support. The other one from Michael is the new one. I know, the point was to show that it's very likely the BT-module, Michael's one uses CC2541 -chip (BT LE): http://www.ti.com/product/CC2541 You can also just get the "base boards" (the blue part seen in the pictures I posted) and the chip-parts separately & solder them yourself). There are modules with various BT SPP and BT LE chips available. Link to comment Share on other sites More sharing options...
OliverH Posted March 11, 2016 Share Posted March 11, 2016 1 hour ago, esaj said: I know, the point was to show that it's very likely the BT-module, Michael's one uses CC2541 -chip (BT LE): http://www.ti.com/product/CC2541 You can also just get the "base boards" (the blue part seen in the pictures I posted) and the chip-parts separately & solder them yourself). There are modules with various BT SPP and BT LE chips available. I plan to use the Adafruit Feather for light and BT and use it as a protocol converter Link to comment Share on other sites More sharing options...
Tomek Posted March 11, 2016 Share Posted March 11, 2016 1 hour ago, OliverH said: I plan to use the Adafruit Feather for light and BT and use it as a protocol converter similar plan here, first need to find time to make my battery though .') PS @esaj do the gotway bt packets contain data on spinning direction? Link to comment Share on other sites More sharing options...
esaj Posted March 11, 2016 Share Posted March 11, 2016 1 hour ago, Tomek said: similar plan here, first need to find time to make my battery though .') PS @esaj do the gotway bt packets contain data on spinning direction? Well, the speed can be negative or positive depending which way the motor is running (and apparently for some owners it shows negative values when riding "the right way around", so it could be mounted/wired either way?). You don't get actually RPM-info out from there, it gives out the speed directly. Link to comment Share on other sites More sharing options...
Tomek Posted March 11, 2016 Share Posted March 11, 2016 1 hour ago, esaj said: Well, the speed can be negative or positive depending which way the motor is running (and apparently for some owners it shows negative values when riding "the right way around", so it could be mounted/wired either way?). You don't get actually RPM-info out from there, it gives out the speed directly. cool, that means i should be able to move on with the plan of implementing white light on the front-riding direction, red in the back, battery level on top, and maybe some subtle breaking and acceleration effects @Michael Vu, sorry for hijacking the thread, you should plug the module like i mentioned before, right next to the big capacitors Link to comment Share on other sites More sharing options...
Michael Vu Posted March 12, 2016 Author Share Posted March 12, 2016 Ok I installed the bluetooth module back in and secured it with tape so hopefully it doesn't get lodged out again. Link to comment Share on other sites More sharing options...
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