@waspie it's not so much pain. I have it working fine. Setup could be simpler, but it works.

The main advantage, at least for me, is unifying all over mqtt. I have mysensors, but also some server monitoring scripts, a vacuum cleaner control, etc.

It's really nice to have a single layer of abstraction between openhab and everything else.

You have to present a node and it will appear as a thing. The rest can be empty.

I'm talking about mysensors-binding over mqtt, which is what I'm using.

I think you are right. I have misinterpreted +-3 as +-3% of the value. It seems that is +-3 absolute %RH.

Thanks a lot.

Hi Guys

I just assembled two very simple nodes based on the BME280.

Same Standard sketch on both (we should add one in the main site, there is not an example), battery powered.

They both work fine, but look at this:

Pressure looks fine:

But temperature and humidity are out of declared Bosch specs:

Any recommendation? Could it be a case of fake sensors? They weren't exactly cheap.

Thanks

@mahonroy It is a very interesting experiment indeed.

I just connected the batteries to the arduino, no boosting. But I have space for 2 AAs. With coin things surely are harder.

I can't help you now but will keep watching your results. Good luck!

@mahonroy Why so extreme? What is your power budget? I'm using a standard sketch for the same sensor and the power consumption is negligible.

I even added a 2 second (2000ms) powered on delay in order to mycontroller.org to detect the parent EUI.

3. I would recommend to burn the bootloader with AVRDUDESS, not only the fuses. I had better luck with avrdudess than with arduino ide.

At least show that you can do that (use Arduino ide OR AVRDUDESS)

Arduino IDE 1.6.x installed
Mysensors lib > 1.5.x installed

You should probably update that to 1.8.8 and 2.3.1. It is not allways related to FOTA but it is allways better to stay updated.

@mfalkvidd said in Arduino pro mini dead after flashing MYSbootloader.:

Great work @jimmy-loyens

Since you now have a working system, would you mind writing down what was needed? I think you are in a good position to describe things so a newbie (like myself, at least when it comes to ota) can understand? Maybe something that can make https://www.mysensors.org/about/fota easier.

I will send you some little things to improve it:

1. MYSBootloader uses channel 76 by default. To change the channel, a new bootloader must be compiled.

Feel free to post my github project "https://github.com/guillebot/MYSensors-Bootloaders"

I will keep updated the different channel versions and probably will upload my script and some info about compiling them.