I have the same problem with R9M and R9 slim + rx. Random “No RC receiver” on yaapu widget (Jumper T16) but rc link is strong (no failsafe).
Matek F405 wing.
I do not think It’s a power or rx problem, because my other F405 wing + X4r have the same issues.
Cube Black and i get the same results on a pixhawk in mission planer and in the OSD my rxrssi is always stays on 100 but if i turn off the TX it does go to 0 in mission planer
i am using analogue pin 103 Sbus out pin
frsky x8r show volts 3.1 rssi on the tx is rssi 98 to 2.1 volts tx is rssi 42
but if i roll it back to 3.9.8 it works in mission planer and the OSD
all 4 plane running cubes
Well its not my setup on all my planes on 4.0.5 don’t work anymore
I am running a Cube Black. I have to have the battery plugged in to do any firmware updates. I just updated from Plane 3.9.7 to 4.0.4. After update was finished and the tones played, the motors spun up to THR_MIN. I was in manual mode and THR_PASS_STAB=1. The plane was not armed. The only way I could keep the motors from spinning was to change from Throttle to Throttle Left and Throttle Right. After disconnecting the battery and removing what was left of the props, I plugged the battery back in to find that when the motors were set to Throttle and the plane was disarmed, the signal out was always at THR_MIN. Arm the plane and they would go to 1000. Disarm the plane again and they would spin up. They wouldn’t spin up on boot because channel never went to low throttle to allow the ESC to work.
Does Throttle Right and Throttle Left act in the same manner as throttle in Auto modes?
For example (current sensor is Allegro ACS758LCB-100B with voltage divider to 3,3 V):
BATT2_AMP_OFFSET,1.6668
BATT2_AMP_PERVLT,75.65
BATT2_ARM_MAH,0
BATT2_ARM_VOLT,0
BATT2_CAPACITY,5000
BATT2_CRT_MAH,0
BATT2_CRT_VOLT,0
BATT2_CURR_PIN,15
BATT2_FS_CRT_ACT,0
BATT2_FS_LOW_ACT,0
BATT2_FS_VOLTSRC,0
BATT2_LOW_MAH,0
BATT2_LOW_TIMER,10
BATT2_LOW_VOLT,0
BATT2_MONITOR,4
BATT2_SERIAL_NUM,-1
BATT2_VOLT_MULT,12.08911
BATT2_VOLT_PIN,4
Watch my video only in Russian language: https://www.youtube.com/watch?v=P6vDcpMvtCs