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About Strooom
since
04-14-2023
04-18-2023
Strooom
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Solution
04-18-2023
10:52 AM
After testing, the BME680 returns 0x00 when reading register 0xF0. (According to datasheet the BME688 should read 0x01, but I cannot test it as I do not have this device yet). so it looks like this is an easy way to detect which sensor you have on your HW.
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04-17-2023
09:50 PM
By carefully comparing both datasheets, I see that the BME688 has an additional variant register (registeraddress 0xF0), returning the value 0x01. I don't know what the BME680 will return if you read this, but maybe this register can be used to detect 680 vs 688 from firmware. As I have some hardware with the BME680 on it, I will test it tomorrow.
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04-17-2023
09:03 PM
Measuring temperature, relative humidity, barometric pressure and VOCs. Here is a link to the hardware design : https://github.com/Strooom/MuMo-V2-Node-PCB
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04-16-2023
08:23 PM
Hello, I have designed a product which has the BME680. Now we like to upgrade to the BME688 which is pin/footprint compatible, so far so good. But how can I determine from the firmware if I have the older BME680 or the newer BME688 ? They both have the same I2C address and the have the same chipId 0x50.. Somehow my firmware (which I can upgrade) needs to be able to work on older boards with the 680, and on newer boards with the 688.
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04-14-2023
08:08 PM
Hello, I have designed a product which has the BME680. Now we like to upgrade to the BME688 which is pin/footprint compatible, so far so good. But how can I determine from the firmware if I have the older BME680 or the newer BME688 ? They both have the same I2C address and the have the same chipId 0x50.. Somehow my firmware (which I can upgrade) needs to be able to work on older boards with the 680, and on newer boards with the 688.
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