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Multiwii 2.4 + nanowii to get BMP280 baro working
Posted: Fri Mar 25, 2016 9:46 pm
by pieterva
Hi,
I have a Q450 with nanowii running multiwii 2.4 and I wanted to connect a BMP280 baro. Can someone point me to solution to get this Baro working ?
Is the memory space large enough ?
thank you !!
Pieter
Re: Multiwii 2.4 + nanowii to get BMP280 baro working
Posted: Sat Mar 26, 2016 1:14 am
by Kbev5709
pieterva wrote:Hi,
I have a Q450 with nanowii running multiwii 2.4 and I wanted to connect a BMP280 baro. Can someone point me to solution to get this Baro working ?
I think you will need to write all of the code to implement the use of a baro that is not currently supported in the MW2.4 config.h.
Maybe I'm wrong here but from what I'm seeing there are only two I2C baro's supported.
/* I2C barometer */
//#define BMP085
//#define MS561101BA
It (BMP280) is capable of SPI interface with an arduino as the master device. Perhaps there is some useful info in the following link regarding interfacing the device into your system that way.
https://www.arduino.cc/en/Reference/SPIpieterva wrote:Is the memory space large enough ?
The NanoWii is based on the Atmega 32U4. The following are the memory characteristics of it:
-Flash 32k (4 KB used by boot loader) - full memory can be used when boot loader is bypassed
-SRAM 2.5k
-EEPROM 1K
Not much there. Pretty much the exact same as the 328P. Definitely won't ever do GPS.
Re: Multiwii 2.4 + nanowii to get BMP280 baro working
Posted: Sun Mar 27, 2016 10:19 am
by pieterva
Dear,
Thank you for the feedback, I'll try and keep you posted.
Kind regards,
Pieter