Comments (6)
Dear @JINGJAN,
Please, check out readme now. There connection diagram and note about signal inverter are added.
Best,
Marsel
from lidar-sync-mimics-gps.
Dear @JINGJAN ,
Yes, you are absolutely right. GPS RECEIVE in the box must also be connected to MCU PPS output pin.
Let me check exact pin map and I'll update readme and this topic. I need at least 1 day.
Moreover, directly connecting MCU with GPS RECEIVE is also not a way to go since signal inverter (high-to-low and low-to-high) is needed to correctly send NMEA message. I'll also describe this.
Best,
Marsel
from lidar-sync-mimics-gps.
Dear @JINGJAN,
Thank you for your interest to the project.
We simply utilized a usual custom wires to connect it to MCU board. We unscrew the cover of the box and utilized the header with bolts inside the box. The connections there are marked for convenience. So, we didn't use the interface on the side of the box named "GPS". If I remember correctly, only two wires are needed (GND and UART TX->RX)
Keep connected, there are some details that are to be described within this month.
Best,
Marsel
from lidar-sync-mimics-gps.
Dear Marselka,
Thank you for your reply and your work!
If I understand correctly, you directly connect your MCU with the cables inside the interface box(like the below picture). And you use the black cable(GND) and an RX cable right? I have one question, Velodyne lidar needs PPS and NMEA to do time Synchronization, RX could handle the NMEA message, so how could you deal with the PPS signal?
Best,
Jing
from lidar-sync-mimics-gps.
Dear @Marselka,
Sorry about the late reply.
And thanks again for this work! I will check your update!
Best,
Jing
from lidar-sync-mimics-gps.
For now, I will close the issue.
from lidar-sync-mimics-gps.
Related Issues (1)
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from lidar-sync-mimics-gps.