Just The Tip - Ep 05 - OpenTX / EdgeTX Secrets Revealed - Audible Low Battery Alerts! 

Its possible to obsess and never get out to the field to fly, just remember that its about having fun, not being the best tech junkie out there 😁

@@Rogue_FPV Just flew my first Edgetx flight, had all kinds on settings done, but in the end I didnt even use those, only model voltage to know when to land. weird huh?

@@LanceaNatrix yeah, that’s the main one that I use. The others are really secondary and not always used / useful, but I’m glad that they are setup in advance if any issues where they might be needed, because you never know what can happen..

Happy that it helped you!

My pleasure!

Thank You!!! Appreciate Your Support!!

@@Rogue_FPV appreciate all the info videos 😁

Thanks Broski!!! Appreciate You 100%!!

@@judahfpv “Battery” is the radio battery level, not the quad. You can do a “discover sensors” in the Telemetry screen on your radio with the quad plugged in. Make sure that Telemetry is enabled in the Receiver Tab of betaflight too.

@@Rogue_FPV well fuck that worked. Thanks man!

@@judahfpv happy to help! 😋😋💪🏻💪🏻

привет друг! 👋Пришлось пользоваться переводчиком, прошу прощения за непонимание.

Thanks!! Glad you enjoy! 💪🏻💪🏻

@@Rogue_FPV Hey just setting this up and wondering if you used the Betaflight Power & Battery tab >> Voltage Meter >> Multiplier Value to get the telemetry to read average cell voltage? That seems to work but just curious if there's a better way?

Oh, I just found the flaw with that method - the auto PID profile selection by cell count won't work because Betaflight thinks you're using a 1S pack. Dang :(

@@flipfpv i just enter this in the cli set report_cell_voltage = ON save This sets the average cell voltage to be sent over telemetry in place of total lipo voltage

@@Rogue_FPV Oh nice! I had no idea about that. I'll give that a try. Thanks!

If you want rxbat to report individual cell voltage instead of total lipo voltage, just enter the following command in the CLI and save. Set Report_Cell_Voltage = On

@@Rogue_FPV Thank you a lot!

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wA2ARXWUYgw.html

FYI - Installing sound packs alone configure the alerts for low battery, link quality, or satellite count, it will just change the available sounds. You still need to configure the radio for alerts.

@@Rogue_FPV Included in the Sound pack are demonstration models that show you how all that is done in the settings menu. Or you can look on her sound pack page, there are examples, and there is an ASCII text file manual included in the download with examples in it.

@@Rogue_FPV Examples included in the included models in the model folder and in the included text file manual. All in one zip. It's free, and she did all the work to record and it while she was blind, since nobody was helping her to fix her quads... so... not like that will ever happen again. Some community, huh! She said it took 2 months to make and she'll never do it again LOL.

“Battery” is the radio battery level, not the quad. You can do a “discover sensors” in the Telemetry screen on your radio with the quad plugged in. Make sure that Telemetry is enabled in the Receiver Tab of betaflight too.

@@Rogue_FPV seems to have done it, thank you 2X bro

@@TavoFourSeven happy to help out!! 💪🏻💪🏻

Actually, you can do this quite easily. If you scroll to time 2:44, you see in my Special Functions that I have L02 and L03 set to Play Track / SigLow - SigCrt. Then if you scroll to time 4:57, you will see the 3 Logical Switched you need to create, for the alerts to work automatically, based on LQ.

@@Rogue_FPV I see. I normally set up channel 12 for LQ on the nano Rx and AUX 8 in betaflight. Do I need to change this to set up the special functions and the logical switch? Thanks 👍

@@luismanchego6856 no, you don't have to make any changes to LQ channels, just set the 3 logical switches and the 1 special function exactly as shown, it will pickup RF Mode Change, and LQ from whatever channel the receiver sends it on. I use these settings on the radio models that I use all my various Crossfire and Tracer quads... some on 8 some on 12ch..

@@Rogue_FPV - This is amazing. Just one question if I may... 4:57 sec mark, those 3 logical switches you've created for LQ alarms... do we need to set *AND switch* , *Duration* and *Delay* , or simply leave it unpopulated? Thank you so much in advance! EDIT: also, your L02 and L03 - *RQly* shows degrees, 80 and 70 respectively... but when I try that on my Tango II (FreedomTX), it gives me values in percentage. Why is that?

@@Seii-FPV @5:58 do not set an "AND" or "Duration" but do set a "Delay" of 5 seconds. The 5 second delay will prevent false alarms when you have battery sag from punch outs, etc... Also, my sensors are reading in degrees in this video because of an error. When I recorded the video I had changed receivers and I didn't do a "Discover New Sensors" on my radio. A value in percentages is correct like you have.

In the Model Setup Screen just below the Model Name, set Timer 1 to ON, and set the switch to activate the timer. You don't have to name the timer, but you want a Count Down timer, set a Start Time to count down from, and set the Value to Remain. Set Persistance to OFF, but Enable the Minute Checkbox, and set the Countdown to Voice. Next to Voice, set the value to 10 seconds, for a 10 second audible alert. You will need to set a special function to clear the timer with another switch though.

@@Rogue_FPV Thanks for detailed reply! I was hoping this screen area is completely customisable and I could display here rx battery voltage from the telemetry, seems like this is either blank or a timer...

you can add rx batt and other telemetry widgets in the secondary main screens. you can add them in the telemetry screen i think

@@Rogue_FPV I was able to make it that once I hold the left-right button on my t-pro, it shows customisable telemetry data and I was able to add it there

@@Arek_R. awesome!!! Glad that it worked out for you!! Happy to help always! 💪🏻💪🏻

Adding SW SD is only necessary if you use Method 1 in the tutorial. If you use Method 2, it is completely unnecessary as you say. You just see it in my Mix screen because I didn't remove it until after I had filmed the whole video. I should have made it more clear that the steps from Method 1 do not need to be done prior to Method 2, but rather a user can choose "either / or". Good Catch!! 👍

@@Rogue_FPV The logical switches and special functions can access the all switches at any time. The switch does not need to be in the mixes (or inputs). All you did by adding SD to the channel 5 mixes was add an outgoing signal on channel 5 to the quad. Wasn't needed for method 1.

Just scroll through the Main pages/screens on your radio with the Page Button when you turn the radio on until you see it. There are 5 Main Screen pages, the radio will always default back to the screen that was displayed when the radio was powered off.

@@Rogue_FPV is that in system settings?

@@certifyFPV no, just from the main screen. What radio are you using?

@@Rogue_FPV i’m using the jumper t lite v2 i’ve seen people have different screens but im unable to actually find out how to change it

@@certifyFPV the page buttons are the switches labeled “Up and Down” to the right of the screen. Just push Up until you see the screen with the stick overlay.

Nice! That’s how I have mine setup! 💪🏻💪🏻

You have to type “report_cell_voltage=on” in the cli and save

Still freedom tx. 👍

Make sure that telemetry is enabled in betaflight, and telemetry is being sent to your radio. I had telemetry issues with 4.4.2 on one of my quads, and went back to 4.4.0.

@@Rogue_FPV thanks for the fast reply. I’m on 4.4.2 with my original and it works. And your talking about the telemetry switch in the receiver tab or settings in edge TX?

@@emafpv the receiver tab

I use the latest, but that shouldn’t matter for Rxbat. Have you done a “search for new sensors” when a receiver is connected?

@@Rogue_FPV thanks for replying. How can I do that?

@@harshlalwani4311 on your radio. Scroll to the Model Telemetry page. Scroll down until you see the line “search for new sensors” then click on it and wait 10 seconds. Make sure to have the quad plugged in and bound to the radio, you will not gain the rxbt if the quad isn’t talking to the radio.

@@Rogue_FPV Thanks a lot man! I wouldn't have guessed it... I will give It a try..

My L01 is a logical switch that I created. The logical switch becomes active when RFMD (RF Mode) crossfire link state drops from 150hz to 50hz. This is for an Rssi alert that I have setup, and has nothing to do with the Audible Alerts for Battery voltage.

Thanks bro, I understand now.

You can do this the same way but for radio battery, select “batt” instead of “rxbt” and set your low voltage threshold accordingly.

@@Rogue_FPV oh ok..thanks

On my tx16s radio edgetx 2.8..I dont see the RxBt option ..it just has batt option

Enter these 2 lines below in the betaflight CLI Tab with your quad plugged in, hit enter key after each line. set report_cell_voltage = ON save

with the quad plugged in and bound to your radio, on the radio go to your model telemetry page, and do a "search for new sensors". if you have telemetry enabled on your RX and in betaflight you should see RxBt pop up in the list of sensors. Then you can ad it as a logical switch. Sounds like your telemetry is disabled in betaflight receiver tab...

@@Rogue_FPV HAHA yeah, I was hit by a double whammy, didnt have batt power and telemetry was off in beta, ty for your time and knowledge

In the cli you can type Set report_cell_voltage=on Then Save

@@Rogue_FPV ok, sorry I use KISS not BF :( Wondering if there was a script to take the value and divide by 4 in openTX

@@GenCodeFPV I dunno about a script I’m sure it can be done. I use kiss ultra and I have cell voltage in the osd, but in the radio I just set the alerts for total lipo min voltage of 21v.

​@@Rogue_FPV I tried creating this with ChatGPT ;) it works fine as long as this line is commented out -- setCustomSensorValue("CelS", -1) it looks like it won't let me set a custom sensor, but once commented out it will display the cell voltage (assuming its 4s) but to use it in a logical switch I need to get its value somewhere. -- Define the function to set a new sensor value local function setCustomSensorValue(sensorName, value) system.setTelemetryValue(sensorName, value) end -- Main function local function run(event) local sensorName = "RxBt" -- Set the battery telemetry ID local cellNumber = 1 -- Set the desired cell number -- Retrieve the voltage value from the battery telemetry local voltage = getValue(sensorName) -- Check if the voltage value is valid if voltage then -- Divide the voltage by 4 local cellVoltage = voltage / 4 -- Display the cell voltage on the transmitter's screen lcd.clear() lcd.drawText(1, 1, "CellVoltage: " .. string.format("%.2f V", cellVoltage), MIDSIZE) -- Set the cell voltage as a new custom sensor value setCustomSensorValue("CelS", cellVoltage) else -- Display an error message if voltage retrieval failed lcd.clear() lcd.drawText(1, 1, "Error retrieving", MIDSIZE) lcd.drawText(1, 25, "cell voltage", MIDSIZE) -- Set an error value to the custom sensor setCustomSensorValue("CelS", -1) end -- Return 0 to prevent the script from interfering with other functions return 0 end -- Register the run function to be called on each telemetry update return { run=run }

Batt is the radio battery, you just need to plug in the drone and click “discover new sensors” on the telemetry screen on the radio. RXbatt should populate. You need the drone on to do this, it has to be sending telemetry back to the radio.

@@Rogue_FPV I did that and now I have RXbt but no sound when it goes below the voltage I set which is 3.3. I do know the sound file is working, I have sound on all my switches. I watched your video many times and mine is set up just like yours. I will try it on another happymodel board and see. I will let you know what happens. I won't worry you if it doesn't work but I have learned things I didn't know so I'm happy. Thanks for your help

@@nvembrace make sure that you’ve done every step one more time. Make sure that if you use the per cell voltage you tell the fc to report per cell voltage. If you haven’t done that, the radio will want to call out the alert when the whole pack drains to 3.3v not 3.3v per cell

@@Rogue_FPV Okay that must be my problem because I didn't tell the FC to do anything. Would that be a command that has to be done in betaflight CLI and if so can you give me the command? Thanks

@@nvembrace enter these 2 lines in the betaflight CLI and hit enter - set report_cell_voltage = ON save

That’s setting the alert for the level of the quad battery. Rxbt = battery voltage seen from the receiver.

@@Rogue_FPV So the model needs to be on and connected for my tx to detect the rxbatt ?

@@gregorydahl yes, the model needs to be turned on to send the telemetry to the TX from the RX

@@Rogue_FPV i have a mobula 7 spi rx . It does not have telemetry maybe . I see no rxbatt choice .

@@gregorydahl depending on the protocol being sent over spi - ELRS / FRSKY / ETC... the rxbatt / rxbt may be sent over telemetry or it may not be. Also, check in the receiver tab or the config tab in betafight depending on version, and ensure that telemetry is enabled there.

Awesome! Glad it helped you! 💯

If you use betaflight, enter this command in the cli. set report_cell_voltage = ON save

@@Rogue_FPV thanks mate!!

Thanks for watching! 🙌🏻💪🏻🙌🏻

I got you brother!!! 💪🏻🔥💪🏻🔥