Nice to see such a lively Conversation about the need for Battery Telemetry =)
Thought I'd give some additional feedback after installing another
Matek System Module - Now into a
Tamiya #56016 M26 Pershing.
Already installed in the Tank was a
TBS Crossfire 6CH PWM Nano RX ( required for Tamiya Models due to it having at least 4 PWM Outputs ) to which I then simply attached a
CRSF to SBUS Module via 4 short Wires ( 5V, GND, Tx, Rx ) to keep it as small as possible. An issue I found doing it like that was the loss of the first two PWM Channels to the Crossfire Rx/Tx Channels as otherwise the Module wouldn't operate - Luckily the
PWM Nano Rx has 6 Outputs so shifting them down by two from CH1-4 to CH3-6 Solved that issue.
Essentially:
Crossfire Rx
Crossfire Tx
CH1
CH2
CH3
CH4
.
.
.
If the Controller is capable of running off
SBUS then you simply buy the even smaller
TBS Crossfire Nano RX, get a 1x4 PIN Header and solder the
Matek System Module directly to it as the Pinouts are in the same order and ( I'm fairly certain but untested ) of the same size and spacing. The resulting Sandwich will have the footprint of the
Nano RX ( 11x18mm ) and will be like 5-6mm thick - You can hardly get any smaller than that.
If you have a Model like the
Tamiya #56018 King Tiger which by default has no Lights and you've used the 5th and 6th Channel of the
PWN Nano Rx for controlling these then you're kinda stuck between a Rock, a hard Place, and a Diamond of either not having Battery Telemetry, being unable to control such additions or having to buy the
Matek System CRSF to PWM 6 Module instead of the
CRSF to SBUS one ( as the smallest solution to getting Battery Telemetry ).
All that is then left to do is soldering the V+ and GND lines on the back of the Module to some Leads going to the Battery Cables and you're done Hardware wise.
In
EdgeTX ( or OpenTX ) it is then just a matter of searching for new Sensors for
RxBt to appear ( among others ), adding the Sensor to Widget and maybe a conditional Alert =)