RadioMaster MT12 Battery Calibration

[@beachtrash1852]

How do I change the internal battery on the MT12? (clock battery)

[@the-happy-RC-flyer]

I have not changed the battery at this date. You should not need to change the battery as your radio is so new.

[@BigWillieFPV]

Great vid again, Can you change the telemetry battery voltage mine reads .4-.5 volts low,

[@the-happy-RC-flyer]

You need to calibrate the sensor, you will need a multimeter.

[@BigWillieFPV]

@@the-happy-RC-flyer what sensor, it’s the Radiomasters ERC5-i Rx with batt voltage input,

[@the-happy-RC-flyer]

You asked about telemetry battery voltage. This would be the main flight battery say 4s 16.8 v full charged. If this is not being sent to your radio via the receiver and it shows 15 v you can go into the sensor settings on your radio once you have discovered the receivers sensors and match the setting to the actual battery voltage. You will need a multimeter. If you do not connect the main battery voltage via the supplied cable it will only show the receiver voltage which is 5 v. This can be confusing.

[@BigWillieFPV]

@@the-happy-RC-flyer yes main pack voltage, red wire from battery to RX, got it sorted had to discover sensors and go into Rxbt and offset by .4, needed adjusting on all 3 of my cars, weird the sensors disappear when you restart and have to rediscover each time to view them, thanks for the help

[@the-happy-RC-flyer]

You do not need to rediscover the sensors just it the arrow and you will see them.

[@FYRC15]

Please put a video up about 4ws

[@the-happy-RC-flyer]

Hi I Do not own a 4 wheel steer car to set up. If you tell me how the system works 1 servo for front wheels 1 for the back wheels. Is the front rear steering proportional to each other or does the servo limits have to be different front to back or is it mechanically built into the mechanisms? Let me know the answers and I will work out the mixes for you.

[@FYRC15]

@@the-happy-RC-flyer thank you for the reply. I found another video from another guy explaining. It is pretty complex but I will give it a shot. Thanks again!

[@FYRC15]

@@the-happy-RC-flyer just FYI the vid is Jacob Sherer 4WS

[@Super1337357]

@@the-happy-RC-flyer the most common form of 4 wheel steer is to have 3 modes: servo 2 is centered, servo 2 copies servo 1, and servo 2 does the opposite of servo 1

[@the-happy-RC-flyer]

@@Super1337357 thank you for the information.