MultiWii

Hello,

I am attempting to put multiWii on a 8mhz atmega328. The multiWiiConf program does not seem to respond to any changes in Baud rate tab. Is this functional?

If I choose a different baud rate than 115200 in config.h I cannot connect to the board with the multiWiiConf program regardless of what baud rate I pick ( I don't know if it is actually selecting anything as all the choices are red).

Has anyone got multiWii 2.4 working on a 8 Mhz 3.3v atmega?

Alka wrote:Hello,
Has anyone got multiWii 2.4 working on a 8 Mhz 3.3v atmega?

gregd72002

That guy knows how they work.

well, correct me if I'm wrong but I do not think multiwii works on 8mhz 328p. It is simply too slow.

I tried it way back and could not get it to work so moved to 16mhz 328p. Same price, same form factor, only 5v for which you can use voltage divider or level shifter if you really have to be compliant with 3.3v

Ok, so as an update

Its working just fine @ 8Mhz, I set the cycle time to 3000. Changed the baud rate to 38400 and incorporated the pwm timer changes from the 8mhz 2.2 version.

I am using the internal clock for the atmega.
In the MultiwiiConf GUI you MUST go to settings tab and press the 38400 button and then connect. I also changed the gui default baud rate to 38400.
The quad flies the same as the 16mhz prototype I had before.(experts may notice a difference)

It means you can make a very small board and not need to worry about level shifters . Can also can be powered from a 1s lipo.



What you see there is pretty much it for components ( one 3.3v regulator on the back side), a mpu-6050 sits on top.