Actually i have several small problems with my M4 , but will get is solved. But one thing actually drives me nuts :
I can set voltage-Alert in GCS, Nice. But needless for M4, who sees the little LEDs in flight, esp. when built in a 500 size copter ? So decided to "trust" in the voltage-notice of GCS. But, as hard as i tried, i could not figure how to get the "warning : battery low" message triggered. Is this on level 2 only ? And, how long must the state below that value ?
Next problem : my batteries dont have a heavy loss at the end of capacity, voltage is sinking slowly over a wider range. That means, if a hiPower-Lipo is nerly empty at 3,75 V under load, mine are at 55 % DoD (45% left). I can use them down to 3.3 V under load. But, below 11,1 V voltage, the GCS shows a negative percentage value, and the message says a positive value - and this one is growing while voltage is sinking.
Is it possible to "adjust" these items ?
And : is there any other way to connect external LED for voltage warning to the m4 ? I´m using the N4 Expander with my unit.