MultiWii

I can confirm that I saw this same bug with SumD receiver integration on a 328 board... Never did find a solution but my workaround was to limit the number of serial input channels to 5 and it got better... Still not perfect though.. ODD behaviour when OLED is attached... Flies perfect though.

OK.... Have successfully flown the Graupner SumD serial addition on a "flip 1.5" 328 single serial board... it works well but was a bear to set up... When the I2C OLED (which is required because of the single serial port) is plugged in it causes some instability in the serial radio data an...

https://vimeo.com/106781279

video will be here in 40 min.. "converting"!!!!! hope the oled is readable on this copy...tried on youtube but the quality was crappy and you couldn't see the issue clearly..

Chris

We almost have it now Plüschi.. I can enter and navigate around in config but have another issue now.. the inputs from the sticks seem to be glitchy on occasion causing the menu to scroll or values to change randomly.. sometimes its ok.. best method seems to be a quick stab at the stick and wait.. a...

HI all.. Trying to implement a Graupner SumD receiver onto a Flip 1.5 board and am seeing an odd issue.. Because I will lack a GUI interface I had planned on using an I2C OLED display for setup and tuning... problem 1 : when the OLED is connected the serial data stream from the receiver is corrupted...

Will keep working this when I get a chance. Have working solutions on both boards and my coding and debugging skills are "ancient". Learned to program in "basic" on a Commodore VIC 20... with the awesome 5KB expander module ... my, how far we have come. The part that troubles me ...

Have found an issue with the SumD addition coding... When an I2C OLED is connected the Data stream from the receiver is corrupted and causes glitching.. I am attempting to use a serial SUMD receiver on a "328" board and require the OLED for setup.. I further tested it on a MEGA board and f...

Thanks Plüschi. It's working now. Just have to familiarize myself with the oled setup routines and some more bench testing before flying but data looks good now. Thanks for your help. This is an awesome option for graupner users.

I have incorporated Plüschi's changes and it working very well on a Mega board on one of my quads.. Very good and clean RC signal using a "cheap" gr-12L receiver.. will interface well with the Graupner telemetry setup i am planning on a new Quad... I am however having issues making it work...