@sundberg84

I'm using mfalkvidds Plant monitoring
mfalkvidd said:

An update on battery life: The sensor in my bonsai tree has been reporting every 11,5 minutes since 2015-11-07, so over the last ~four months it has done 24,504 measurements. The battery level has gone from 3.187V to 3.142V, which means a drop of 0.01125V per month. Assuming I let it go down to 2.34V (limit for 8MHz according to the datasheet) and that the voltage drop is linear, I should get (3.187-2.34)/0.01125 = 75 months = ~6 years. There are several error sources in this calculation, but it looks like battery life will be quite good, even though the sensor reports much more often than necessary.

So I will try without Booster. But for other sensors I will use booster.

Here is a simular thread
https://forum.mysensors.org/topic/3891/2-controllers-and-1-gateway-expected-behavior/2

@sundberg84

I'm using mfalkvidds Plant monitoring
mfalkvidd said:

An update on battery life: The sensor in my bonsai tree has been reporting every 11,5 minutes since 2015-11-07, so over the last ~four months it has done 24,504 measurements. The battery level has gone from 3.187V to 3.142V, which means a drop of 0.01125V per month. Assuming I let it go down to 2.34V (limit for 8MHz according to the datasheet) and that the voltage drop is linear, I should get (3.187-2.34)/0.01125 = 75 months = ~6 years. There are several error sources in this calculation, but it looks like battery life will be quite good, even though the sensor reports much more often than necessary.

So I will try without Booster. But for other sensors I will use booster.

Finally got my boards. In color: Yellow.
If I would skip the Booster is the esiest thing to just wire Vi - Vo?