As I figure out Ethos and fill up this forum with questions it seems I am the first to ask this question: With this 'Archer Plus GR8' how can I get live lipo voltage telemetry. My Tx shows "rx voltage at 5.9v but no flight pack voltage. If armed with a soldering iron can I fabricate a plug to the Rx and the lipo or do I need to buy a sensor for the flight pack voltage? Which sensor?
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Lipo telemetry Archer Plus GR8
- Thread starter austin
- Start date
doug35
Strong User
There are a couple of ways to do it, the simplest IMO is to get the LIPO ADV sensor which plugs into the telemetry port (S.PORT) and the balance lead from the battery. This gives you not only the pack voltage, but also the individual cell voltages. So you can very easily set an alert if any cell drops below a set threshold. You can also leverage the AIN2 connection to get the pack voltage. See this thread: Pack voltage telemetry
There is an example in the ETHOS manual for setting alerts for low voltage.
There is an example in the ETHOS manual for setting alerts for low voltage.
Thank you Doug. I looked all over the web and here and delightfully found the answer (same thread Doug provided), using the AIN2 port and running a wire to the positive terminal of the lipo much like I did with Spektrum receivers. After tearing through my collection of RC crap looking for a ain2 shaped plug I sat back down and noticed the Plus GR8 came with plugs wired up!!! I just plugged it in, on my x20s the voltage didn't match so I used the tx telemtry screen to "ratio" it up to what is being read by my lipo checker. We will see if that works as the voltage drops.
Finally starting to click with Ethos and it is great!
Finally starting to click with Ethos and it is great!
Austin there a couple of ways to receive live flight pack voltage, the Ain2 is the simple way for flight packs up to 8S. With the appropriate connections you will need to adjust the ratio perimeter in the Ain2 section under the Telemetry page while measuring the overall flight pack voltage. You can then setup a logical switch to trigger a Batlow warning using special functions to make announcements, or bring up the flight pack voltage on your TX screen. The 5.9 volts you mentioned earlier is the servo voltage measured at the PWM connectors on the receiver.
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Austin, if you use one of the lipo sensors like this: https://alofthobbies.com/collection...sky-smart-port-mini-lipo-voltage-sensor-mlvss you can get voltages of all cells. You can also set a logical switch based on the lowest cell voltage. Quite handy.
