Best posts made by DenisJ

@BearWithBeard said in Battery life calculator:

Did you measure the wake time of 2s?

No... I have inserted a wrong wake time,
cause now I have misure the wake time using millis() from initial LOOP
until before sleep command, and and I have only about 600 millis (sometime 300 sometime 900).

Then I send the data only when the temp have a difference of 0.3°C.
And the humidity only at 5% difference.
Also I put 2 minutes (really 128 sec because of 8s X 16 in order to use only thw WDT of 8Sec)

And now the tabel is like this:

But it give me only:

Yes... I have blinking LEDs as RX/TX but now I'll take off it and I'll blink only one time at every 2 minutes.
I'll see the measurements.

I will not discharge the batts too much because I dont buster for the voltage.
The 2 batts (3V) it's go directly to the Atmel and all the rest.
But I use an internal clock of 4mHz and If I understand correctly this will discharge the batts. until 1.8V of total.

Here I paste is the prototipe (cause I know you all like the pictures:-)

Thanks a lot
Denis

@electrik said in GWT:TPC:CONNECTING:

2.3.2 release

I can't believe... IT'S WOOOOOOORK !!!
Thanks a lot @electrik !!!

I don't know why, and I don't understand... but with 2.3.2 release it's work if I make that modify in the MyGatewayTransportMQTTClient.cpp file.
Also I don't like that I must modify that time... but for now it's ok.
Also I don't understand why 2 days ago it's change same hardware and same soft,
from work to no work (I don't know haw to tell this in english)

Thanks so much again
Denis

I finally understand with was the problem...
My WiFi Mesh LAN accepted only 802.11.g+n radio... now that I have set 802.11.b+g+n it's ok
Strange this think cause an all other WiFi Arduino schetch the 802.11.g+n radio was always accepted.

Anyway... now it's work
Denis

Hi there all,
I just finish a simple node using a barebone Atmega328p.
I program the bootloader MiniCore at 8Mhz internal clock.
I use a BME280 for temp/humidity and RFM69HC for radio.
All work great

Now I'm on the software part of sleep.
I just use Sleep(30000) in order to test it.
What I receive in the log(parser) is:

Sleep node, duration 30000 ms, SmartSleep=0, Int1=255, Mode1=255, Int2=255, Mode2=255
Set transport to sleep
Node woke-up, reason/IRQ=-1 (-2=not possible, -1=timer, >=0 IRQ)
Set transport to standby
Sent Message ...etc...

So I wonder what sleep() do please ? ...it use a watchdog internal timer in order to wake up ?
I have try to use a "LowPower.h" lib but the compiler give me an error:

multiple definition of `__vector_6'

...like already have this piece of code in the MySensor lib.

So if I understand the watchdog internal timer is the best solution to make sleep all strange thinks inside Atmega328p.
Is I still understand it can't do it more than 8sec.

Can anyone please help me to understand ?

Thanks a lot
Denis

I just retry with the newone and it give me about 9,1 uAmp

Thanks all

@Nca78 said in What I must buy in order to misure mAh please:

you have to unplug/re-plug before the nodes gets out of sleep and obviously this will make measurement impossible.

I use the multimeters in this mode:
-first I musure the work mA in the work session, with the switch on mA... this give me about 19 mA
-then I put the switch on uA but I also put a direct wire that is in paralel to the multimeters in order to have suficient current
...when the Arduino go in sleep mode, I take out the direct wire and the remained wire of multimeter will misure the uA

Thanks a lot for the answer.
Denis

Yes now I know
But the tester that I had before this one,
when it was switching from mA to uA, it was reseting the board.

Now all is greate
Thanks a lot

@skywatch said in New simply node sensor project - please some advise:

Measure the current drawn by the radio module in transmit. Small batteries may not last long if it is too high (say more than 20-30mA).2,
Do not use tantalum caps. They can have high ESR and have an ability to fail as a short circuit. Try ceramic SMD caps instead.

I just misure the power consume of the RFM69 radio and it's around 15mA max:

So you think it's ok ?
This is the develop project and here I use the 1000uF electrolytic capacitor (don't know if in this case help the radio power)

So for the cap please tell me... I must put a ceramic with out polarization ?
If yes, do you think this one it's ok please ? ...they have no disponibility for bigger than 220uF

Thanks a lot for your help
Denis

p.s. in the mean time I found this one that have only 7 mΩ MSR
Do you think it's ok please ?