Search found 150 matches

by theseankelly
Sun Mar 12, 2017 11:15 pm
Forum: Developer Discussions
Topic: Bigquad modification for more uarts
Replies: 8
Views: 1487

Re: Bigquad modification for more uarts

Alright, been doing some more thinking on this and here's where I've landed. To recap, I need a minimum of 2 UARTs to run OSD + Spektrum Rx. A third UART for GPS is a nice-to-have but not strictly required for FPV flying. I'd also like to preserve as many bigquad features as possible and minimize an...
by theseankelly
Tue Feb 21, 2017 6:07 am
Forum: Developer Discussions
Topic: Bigquad modification for more uarts
Replies: 8
Views: 1487

Re: Bigquad modification for more uarts

Also, what are those pin connectors you've used for the ESC connectors? They're .1 right angles but the female connectors lie flat against the PCB instead of up in the air a bit.
by theseankelly
Tue Feb 21, 2017 4:51 am
Forum: Developer Discussions
Topic: Bigquad modification for more uarts
Replies: 8
Views: 1487

Re: Bigquad modification for more uarts

Oh darn! I missed that the E_SDA/E_SCL I2C bus was hooked up to the EEPROM. I guess I assumed it was another internal I2C bus. I guess you're right that it should still work..but I'd rather not have to contend for access to the EEPROM. I might wanna add support for configuring stuff like PIDs via th...
by theseankelly
Mon Feb 20, 2017 3:40 am
Forum: Developer Discussions
Topic: [SOLVED] BigQuad: brownouts when punching throttle
Replies: 6
Views: 1443

Re: BigQuad: brownouts when punching throttle

On a second look, there's an SS34 on the 5v supply coming off my PDB, so shorting the SS12 on the bigquad deck is a safe solution even if I end up plugging in USB, right?
by theseankelly
Sun Feb 19, 2017 6:13 am
Forum: Developer Discussions
Topic: Bigquad modification for more uarts
Replies: 8
Views: 1487

Bigquad modification for more uarts

Hey bitcraze -- I'm modifying my bigquad deck a little bit to get two more UART ports. I need UART for GPS, an OSD, and a spektrum RX. I plan to repurpose the SCL and SDA lines for one UART, but the second is a little harder. RX2/RX2 will work, but are currently driving the signal to M1 and M4. So I...
by theseankelly
Sun Feb 19, 2017 3:50 am
Forum: Developer Discussions
Topic: [SOLVED] BigQuad: brownouts when punching throttle
Replies: 6
Views: 1443

Re: BigQuad: brownouts when punching throttle

Thanks Tobias. I think I might just run a separate pololu 5v regulator to power the cflie, since I've definitely found it useful to have USB plugged in for cflie debugging while also powering the esc's with a battery, and I'd rather not risk anything.
by theseankelly
Tue Feb 14, 2017 4:15 pm
Forum: Developer Discussions
Topic: [SOLVED] BigQuad: brownouts when punching throttle
Replies: 6
Views: 1443

Re: BigQuad: brownouts when punching throttle

Hi Tobias -- thanks for the info. I brought my copter in to the office today and put it on an oscilloscope: I don't see any measureable voltage dips across VUSB or the 5v regulator output. Any other electrical factors that might contribute? Current draw? Would it help or be useful in any way to hook...
by theseankelly
Sun Feb 12, 2017 4:23 pm
Forum: Developer Discussions
Topic: [SOLVED] BigQuad: brownouts when punching throttle
Replies: 6
Views: 1443

[SOLVED] BigQuad: brownouts when punching throttle

Hi Forum My bigquad build is suffering from brownouts (the CF2.0 board reboots) when I punch the throttle from zero to 100% very quickly. I'm powering the CF2 with a wire coming from my PDB's 5v supply into one of the ESC pins as recommended. The PDB has a steady 4.85v output which doesn't fluctuate...
by theseankelly
Fri Dec 30, 2016 3:48 pm
Forum: Support
Topic: A number of small issues
Replies: 4
Views: 1778

Re: A number of small issues

I had a problem a long time ago that sounds very very much like what you're describing -- especially the range/disconnects/phantom device detection. I ended up having the wrong firmware flashed on the CrazyradioPA: I had built for the Crazyradio and not the Crazyradio PA. Try updating that firmware....
by theseankelly
Mon Nov 07, 2016 4:20 pm
Forum: Developer Discussions
Topic: DeviationTx improvements
Replies: 5
Views: 1720

Re: DeviationTx improvements

Telemetry is merged in to the mainline deviationtx firmware!