Hardware Compatibility of ATmega32HVB

[rszasz]

I know the OpenXSensor project is based around the arduino platform, but can someone familiar with the hardware requirements respond with if the ATmega32HVB http://www.atmel.com/devices/ATMEGA32HVB.aspx , or any of the other battery managment MCUs are compatible with generating the signals for S.Port and/or Hub? This little chip looks like it would make a nice 2-4 cell logger/safety monitor/(dis)charge controller and switch. being able to use it for telemetry would just be an added bonus.

[mstrens]

I think that 32HVB MCU has an architecture that is quite different from the AVR328P used in arduino pro mini (or nano).
So, for sure the code for OXS will not run on a 32HVB.

I expect that 32HVB could support S.port (if the UART interface is made by the program it self)
Note: in OXS, UART is also implemented by software because it was not possible to use the hardware UART without adding an external inverter.

[MikeB]

It may well work, but it is limited to a maximum clock of 8MHz which may compromise the accuracy of the SPort baud rate.

Mike.

[mstrens]

I think that some users have already build an OXS with an arduino pro mini running at 8 Mhz.
So I expect that a MCU running at 8mhz can support Sport protocol.

[rszasz]

My end goal is to have the ability to charge over something like QI, and have the ability to turn all but a very low power supervisor off with some non contact method. I've mentioned elsewhere on the forum that I'm getting started in rc sailing, and as such being able to keep electronics encapsulated or in an otherwise sealed container will make a big difference in how long they will last.

Something I just thought of. I know a Vario is used to measure energy state of a glider, I wonder if it could be adapted to give some sort of windspeed reading, perhaps even a hint of direction changes on a model boat

[mstrens]

The vario uses a baro sensor (MS5611). This sensor mesures the general atmospheric pressure and can't be used to mesure windspeed.
OpenXsensor can also measure the airspeed reading a 4525DO sensor. This sensor is a differential pressure sensor. It has to be connected to a Prandtl probe in order to get a differential pressure depending on airspeed. Still, even if this sensor is very sensitive it is not possible to measure low airspeeds. I would say that the range of measurement is between 40 and 400 km/h.
Furthermore the Prandtl probe has to be aligned with the wind.

So for your application, I think that you need another kind of sensor.
The most common solution seems to be a mechanical device (wind turbine) and to count the number of rotations per minute. If the rotation axis is vertical, you do not have to align the device with the wind.