Hello
I am using PX4 and the PixHawk 2.1 (cube) and its power module.
As we areworking an autonomous flights, w need to read the information related to the battery to plan a gohome when necessary (for instance).
However when I read the information I got the following values - here is a MAVROS message but these values are identical when I used Analyze (QGC):
seq: 216
stamp:
secs: 1528206242
nsecs: 464688044
frame_id: ''
voltage: 65.5350036621
current: 0.00999999977648
charge: nan
capacity: nan
design_capacity: nan
percentage: -0.00999999977648
power_supply_status: 2
power_supply_health: 0
power_supply_technology: 3
present: True
cell_voltage: []
location: "id0"
serial_number: ''
---
header:
seq: 217
stamp:
secs: 1528206242
nsecs: 665512459
frame_id: ''
voltage: 65.5350036621
current: 0.00999999977648
charge: nan
capacity: nan
design_capacity: nan
percentage: -0.00999999977648
power_supply_status: 2
power_supply_health: 0
power_supply_technology: 3
present: True
cell_voltage: []
location: "id0"
serial_number: ''
I got -1 for the percentage and what is surprising 65V on Voltage (with a 4 cells Lipo battery). I am wondering whether I did something wrong when I configured the battery with QGC, this is why I included a snapshot of these parameters and their values below:
Another point worth to mention is that on QGC, i am not able to modify the voltage divider because it mentioned “vehicle voltage = -1” but the drone is able o be armed and fly - so where is the problem?
As I am still stuck with this issue, I am able to provide more information by running listener battery_status, llistener system_power and adc test - if someone can point me where I am wrong, it will be very helpfull:
