Hi,
I received an EmonTX v3 and a few extras (case, CT, AC power, etc). As I have some other SRF kit in my home already, I got a RFU328 with SRF module direct from Siseco to go with it.
Am attempting to test if the EmonTX is alive, but I don't seem to be getting anywhere.
I have a Ciseco Explorer Plus (5 in 1 Xbee/SRF, RFu and FTDI programmer). If I connect the RFu to it, I can program it and update the firmware on the 328 fine. However, if I place the EmonTx on the FTDI port, I get the following error message (avrdude: stk500_getsync(): not in sync: resp=0xfe).
I've tried programming the RFu and inserting into the EmonTX, however nothing seems to occur. I get no LED status/flashing light, nothing in fact that seems to insinuate that it is alive. I've tried powering via the AC-AC adapter, the USB/FTDI source (as mentioned above) and also using a USB power supply.
I've also tried uploading a simple blink style sketch, but so far nothing seems to be happening.
Is there something I can test to check the board is OK?? For instance, some points on the board for continuity and similarly some default points where I should get specific voltages?? Just checking that the board isn't broken in some way. As I've only soldered on some headers, am fairly confident that my admittedly not awesome soldering isn't to blame :)
Thanks
Dan
Re: Verifying EmonTX Working
I suggest you get the circuit diagram from Solderpad, and check the operation of the power supply and voltage regulators. There's much information on the Wiki.
Re: Verifying EmonTX Working
This error can also be caused by the PC you are using to run the Arduino IDE from.
If you are on windows, with the Arduino plugged to the computer, open "Device Manager" and check the "Ports". Check to see if an Arduino device is listed here; if it is, then make note of which COM port the Arduino is on and check that you have this selected in the Arduino IDE (Tools -> Serial Ports).
If you don't see an Arduino device listed under Ports; then you are probably seeing an "Unknown Device". You will need to install the drivers manually for your Arduino.
If you are on a mac I found I needed to download the CDM driver from: http://www.ftdichip.com/Drivers/VCP.htm