Sparkfun OpenLog both lights flashing I'm building a simple RS232 data logger with the Sparkfun OpenLog and a SEEED RS232-TTL adaptor. I'm powering it with a 9 volt battery and a 7805 voltage regulator.

It's dead simple. I built it on a breadboard first and determined that TX-TX and RX-RX connections are called for. I logged several files on the breadboard then soldered it all up. Now it's not working, sigh.

When I power it up  both lights will flash rapidly for about a second and then it settles down to a steady on-off with both lights.

If I delete the config file a new one is created, which shows that it recognizes the card at least.

I've triple checked my wiring and confirmed I have no shorts, and that the voltage is good.

I'm attaching a photo as built. Hopefully it's obvious what's what. The purple trace is ground.
The problem with the circuit was a bad rs232-ttl converter. Not sure how that messed up the openlog, but replacing it fixed the problem.

In the photo above, D1 on the converter is an led which should be normally on.