Can the MoTeC M800 Control or Run Analog Gauges?

I’m looking for some clarification regarding the capabilities of the MoTeC M800 ECU.

Is it possible for the MoTeC M800 to directly control and operate traditional analog gauges, such as a tachometer, oil pressure gauge, and coolant temperature?

If so, can these gauges be driven directly from the ECU outputs, or would additional signal converters or interface modules be required?

I’d appreciate any insight, recommendations, or real-world experience from anyone who has integrated analog gauges with a MoTeC M800 system.

Thanks in advance for your help!

The M800 doesn't have any analog voltage outputs.

There is a dedicated tachometer control function, which is variable frequency based on engine rpm.

Technically you could use an RC circuit driven by an output of the M800 to generate a variable voltage, but I don't know why you would bother.

As per Scott's reply the problem with conventional analogue gauges (with the exception of the tacho) is that they rely on a variable voltage which the M800 can't emulate. Even driving a factory tacho off the dedicated PWM tacho output is problematic in some cases and may require a pull up to 5 V or similar.

OMS and Andre,

I am considering purchasing the tachometer (shown) and temperature gauge (not shown, is inoperable) in the link below. Do you think it would be compatible with the M800?

I would appreciate your feedback before making the purchase.

Speedhut Custom Gauges|4-1/2" Classic Tachometer | 8K RPM Engine RPM Gauge | SPEEDHUT®

Best regards

If it is wired as per the installation instructions with the 4.7K pullup to 12V+ and the M800 set to two pulses per rev, then I see no reason why it wouldn't work*.

* i have seen tacho's like this that should work with Tach outputs from an ECU, but just do not, no matter what changes get made.