Solar PV Monitoring System

Submitted by Guest on Tue, 10/04/2012 - 11:18

Hi,

Got my PV kit last week. EmonTX assembled and seems to be working (with emonTx CT_123_voltage sketch) ok. The NanodeRF (868Mhz) is assembled,Voltages tested ok. Side note the build guides were excellent ( from a complete novice )

I can upload NanodeRF_Power_RTCrelay_GLCDtemp and sketch loads ok. However now I cant get them to communicate or more to the point the nanoderf to receive anything, from emonTX, emonTX is set node ID 10 group 210 and NanodeRf is set node ID 15 , group 210 and both 868Mhz.

Now whne I look at com port for the nanoderf I see nothing (yesterday I was getting the following:

DHCP status: 0
2 {rf_fail:1}

Being a novice I have played with this for a few days and learned a lot but it is still not working. Thinking I should start by testing the RF12 I have tried the simple test with Ian's RFM12B Test code but keep getting error compling (Ports.h:10:22:error: WProgram.h no file or directory ).

My nanodrf Board is set to Uno and using latest Port and RFM12B versions

I did notice that atenna is 100 mm and not recommended 82 mm for 868Mhz

Please advise on next step.

Cheers

Peter

Re: Solar PV Monitoring System

Submitted by PeterN (not verified) on Tue, 10/04/2012 - 15:31.

Looking better but did nothing new, I'm getting see extract below - to me this implies my assembly e.g. soldering or something, my question above relating to antenna length still stands - its is now 100mm so question is do I cut it down to 82mm as recommended for 868Mhz.

DHCP status: 0

1 emontx packet rx2 {rf_fail:0,power1:21,power2:41,power3:0,voltage:3274}
DHCP status: 0
2 {rf_fail:1}
DHCP status: 0

1 emontx packet rx2 {rf_fail:0,power1:26,power2:41,power3:0,voltage:3274}
DHCP status: 0
2 {rf_fail:1}

Re: Solar PV Monitoring System

Submitted by glyn.hudson on Thu, 12/04/2012 - 01:00.

Try using our RFM12B tester, if you have the emonTx working just use the Rx sketch to receive the data: https://github.com/openenergymonitor/RFM12B_Simple

Re: Solar PV Monitoring System

Submitted by glyn.hudson on Thu, 12/04/2012 - 01:01.

Try using our RFM12B tester, if you have the emonTx working just use the Rx sketch to receive the data: https://github.com/openenergymonitor/RFM12B_Simple

Re: Solar PV Monitoring System

Submitted by TrystanLea on Thu, 12/04/2012 - 06:48.

Looks like DHCP Is more of the problem? The router is failing to give the nanoderf an ip address. It might be worth trying a static ip.

Re: Solar PV Monitoring System

Submitted by PeterN (not verified) on Sat, 14/04/2012 - 12:39.

This discussion has moved to http://openenergymonitor.org/emon/node/550

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