Hi, I’ve been been having an odd issue trying to use my OpenLog Artemis.
Hardware:
OpenLog Artemis (without IMU), v2.2 - DEV-19426
1GB microSD card - COM-15107 (first card)
32GB microSDHC card - SanDisk Ultra Plus (second card)
2AH Lithium Ion battery - PRT-13855
Issue:
With a microSD card inserted, the OLA will not power on. Instead, the PWR and STAT LEDs will flash once, then nothing. This happens regardless of whether it’s running on battery or connected to my PC via USB. When connected to my PC, the COM port is recognized, but nothing else happens. Pressing the reset button has the same effect - both LEDs flash once, then nothing.
When the microSD card is removed, everything works normally - it powers on fine on battery, and when connected via USB and can open a serial terminal and communicate with it normally. If I insert the microSD after the OLA is powered on, the card is recognized and I can log data to it normally. It seems only when I try to power it on or wake it from deep sleep when the card is already inserted, that the issue happens.
Things that have been tried:
I’ve found another post on this forum with pretty much the same issue here:
The solution from that post hasn’t worked for me. I’ve tried two different microSD cards, both formatted in FAT32. I’ve re-formatted both cards and deleting everything on them. I’ve re-uploaded the firmware to the OLA.
From what I’ve read elsewhere, it seems most likely to be related to the initial power draw of the microSD. The first card I tried was the one recommended in the SparkFun hookup guide for the OLA. What are the odds that both cards have too high of a power draw, and how would I find that information before purchasing a card? Could it be a problem with the board as well?
Any insight would be appreciated. I’m fairly new to hobby electronics, but I will try to provide any additional information to the best of my ability.