Let there be light!

[FBnil]

GPS yes (in the 3G models), accelerometers I think I heard being talked about officially, gyro no idea, and compass I've asked for but not heard anything back. Now phones are also getting humidity and temperature sensors and things, but I wouldn't expect it to have any of that.

What do humidity and temperature sensors cost? How do they connect to SoCs? They might cost only a few $ and be easy to connect and use via I2C or something. Position would ideally be on the outside when Pyra is closed and when it's open and it would need a little hole for air to come in. So it seems maybe it could go next to the microphone which has similar requirements.

Yeah, I want that compass too...

The price of a temperature sensor (not the one inside the CPU) is 1.5 dollar Not I2C though. https://www.sparkfun.com/products/10988

The usb variant is much more expensive, but has a very good manual (and you can disconnect the Pandora, but still be able to measure temperature): http://www.yoctopuce.com/EN/products/usb-sensors/yocto-temperature?gclid=CJnNpuy3n70CFWsTwwodZJoASQ

 

[Natsu]

What on earth would they be useful for?

Apart from idle curiosity...

'gee, it's hot today... wow 32 degrees, I'm not surprised.'

lol
To see how hot Pyra is.

 

[_wb_]

If the Pyra is like the Pandora, you can use the battery temperature sensor if you want to keep track of temperatures. Put your Pandora in a room, start System Info with logging enabled, close the lid and come back one or two days later. Plot your logs and you'll get a nice temperature graph that is quite accurate, because an idle Pandora does not produce enough heat to really disturb the measurements.

 

[EvilDragon]

The OMAP5 has a temperature sensor as well

 

[_wb_]

The OMAP5 has a temperature sensor as well

A SoC temperature sensor? So there will be two temperature sensors? One for the battery and one for the SoC?

 

[WizardStan]

I'm not sure using the battery or the SoC temperature sensor would give a very accurate reading. What is needed is some kind of external temperature sensor, like something behind the LCD.

 

[ssokolow]

GPS yes (in the 3G models), accelerometers I think I heard being talked about officially, gyro no idea, and compass I've asked for but not heard anything back. Now phones are also getting humidity and temperature sensors and things, but I wouldn't expect it to have any of that.

What do humidity and temperature sensors cost? How do they connect to SoCs? They might cost only a few $ and be easy to connect and use via I2C or something. Position would ideally be on the outside when Pyra is closed and when it's open and it would need a little hole for air to come in. So it seems maybe it could go next to the microphone which has similar requirements.

Yeah, I want that compass too...

The price of a temperature sensor (not the one inside the CPU) is 1.5 dollar Not I2C though. https://www.sparkfun.com/products/10988

The usb variant is much more expensive, but has a very good manual (and you can disconnect the Pandora, but still be able to measure temperature): http://www.yoctopuce.com/EN/products/usb-sensors/yocto-temperature?gclid=CJnNpuy3n70CFWsTwwodZJoASQ

If you're going for something too large to fit inside a Pyra anyway, you might as well get a DHT11 and get temperature and humidity with similar accuracy for under $1.50 including shipping.

(And it's still small enough that you could probably use perfboard, V-USB, a USB-A connector, an ATTiny45 or ATTiny85, and some appropriately-sized heat-shrink tubing to build something cased with the size of a flash drive.)