Pleae recommend proper barometric/altitude sensor

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#1
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Hello,

I'm going to start variometer device based on ATTiny85 chip.
Please recommend proper barometer/altimeter sensor.

It should be easy to operate with ATTiny85 and powered on single cr2032.

I'd just found BMP085

Any other suggestions?

Thanks.

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The BMP085 has ceased production. I've been using the '085 for a while, so I just bought a bunch to tide me over until I redesign the PCB. I suspect a lot of others will be doing the same, so get em while you can.

If this is a 'one-off' project, you should still be able to obtain them for a while, but if you plan on producing any quantity, use some other sensor.

My plan is to go with the BMP183. Its about the same price as the '085, but its SPI.

If you're committed to I2C, the BMP180 will work, but about twice the price.

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Adafruit has a baro sensor on a breakout board ready to hook up to the spi or whatever it uses.

Imagecraft compiler user

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Thanks for your replies.
I will start from BMP085 as it is already ordered.
Then I will move to BMP180. Also it is a lot of cheap 180's at AliExpress.