@korttoma Hi, I just returned to play with Efergy and Arduino. I realized that debug messages on UART reset the micro. Now I'm skipping (with a #define DEBUG and #ifdef) all debug messages and it seems to work fine. But take into account that now I'm not using any radio module... just to test the firmware.
Hi,
at the moment I'm defining some things in order to use RFM69 modules...
in the past, on my NRF24L01+ I was using 10 uF capacitor but I had same problems of "stop responding"...
Hi @korttoma,
the value 65535 or 32768 often is used as multiplier from sensor that send metric;
usually when you have to send a "small" float value (temperature, current) you can send it as integer
multiplied by a big constant instead of sending it with a float value converted in binary...
I just refined my formula with this that is more close to formula I found for my Efergy using a small
constant:
current = 18348 / 32768 / pow(2, 255-254 + 1) = 0.139 A
current = 17693 / 32768 / pow(2, 255-255 + 1) = 0.269 A
current = 28835 / 32768 / pow(2, 255-255 + 1) = 0.439 A
Hi @korttoma,
take a look to this decoding based on your collected data for 30W, 60W and 100W;
everything seems to be ok !!
Regards,
Gennaro
p.s. I checked in your profile that you live in Finland and power voltage is 220/240 V 
+ LSB / 65535) / pow(2, (255-exponent))9 - 0x09
80 - 0x50
46 - 0x2E
64 - 0x40
71 - 0x47
172 - 0xAC
254 - 0xFE
184 - 0xB8
0x47AC = 18348
current = 18348 / 65535 / pow(2, 1) = 0.139 A
9 - 0x09
80 - 0x50
46 - 0x2E
64 - 0x40
69 - 0x45
29 - 0x1D
255 - 0xFF
40 - 0x28
0x451D = 17693
current = 17693 / 65535 / pow(2, 0) = 0.269 A
9 - 0x09
80 - 0x50
46 - 0x2E
64 - 0x40
112 - 0x70
163 - 0xA3
255 - 0xFF
217 - 0xD9
0x70A3 = 28835 (10)
current = 28835 / 65535 / pow(2, 0) = 0.439 A
Hi @korttoma,
happy to read that you are getting "reasonable" values from RFM12B !!
but I agree that in your case the decoding protocol needs some refinements...
just a question: your line voltage is 110 or 240 ?
take into account that from Efergy current sensor you get the value of "current" and
not "power" than for 30W expected value from data is (V/30) [Ampere]...
Hi, I have these modules:
http://www.banggood.com/433Mhz-RF-Transmitter-With-Receiver-Kit-For-Arduino-ARM-MCU-Wireless-p-74102.html?rmmds=search
the range is only few centimeters... I will try to do some antenna tuning but I don't expect any significative improvement.
If you want to try with your RXB6 module the code is always the same, you have only to remove the configuration code lines related to RFM12b configuration;
Hi,
you need to connect RFM12b module to Arduino following this schematic (you can avoid to connect IRQ line...)
http://jeelabs.net/attachments/download/331/jlpcb-128.pdf
after this cabling you need to connect RFM12b DATA pin to Arduino D3 pin (you can select a different pin but modify
code accordingly...)
only after this you can use the Mysensors-Efergy-e2 sketch (https://github.com/gtortone/MySensors-Efergy-e2) to get
RF data;
I tested my code with cheap RF modules (I received them some days ago) but the performance of these modules are very
poor... I will try to do other work on cheap RF modules in the future...
Thanks !
Hi @korttoma,
I did not tested cheap 433 MHz modules yet... I will receive a couple of them next week !
anywai RFM12b is a great module that has interesting features like frequency tuning and adjustable gain...
If I will have updates on cheap modules I will update this thread !
@skywatch
I meaning that often is also useful to check cable two (or three) times !
but if you already did it... ok !
@skywatch
Hi, options for "configure" are ok, I suggest you to double check your cabling !