Day 199, Engine monitor, finishing installation. Preparing for big cleaning.

 Engine, electronics.

 Finished installation of the engine monitor.

 

I like simplicity of my Yanmar 2QM20 , it does not need even electricity to run, BUT i am engineer and want to be sure engine is OK and to be able to monitor it and catch any issue BEFORE it grow to PROBLEM.

I am using Open Plotter software on the board and decided to get important vitals from the engine  to Signal K  server to be monitored.

I have designed Engine monitor "box" electronics and used SenseESP open source project  as software base for my device.

What I can monitor with it?

Tachometer

•     Tachometer sensor input
•     Tachometer amplified signal output

Analog sensors

• Power voltage
• Alternator output voltage
• Engine oil pressure sensor 
• Two tank level sensors (not connected yet)
• Throttle position (not connected yet)

 Alarms

• Oil Pressure alarm input
• Coolant overheat input
• Low coolant level input
• Low oil level input (not connected yet)
• Water in fuel filter sensor input (not connected yet)

OneWire temperature sensors up to 7 :

• Coolant temperature (out).
• Coolant temperature return to engine (in).
• Raw water temperature after heat exchanger.
• Exhaust temperature (after mixing elbow).
• Drive shaft packing  temperature.
• Engine compartment air temperature 
  
• Transmission temperature. (not connected yet)
•  

External alarm (program is not implemented yet)

• Sound alarm output 
• Light alarm output
• Mute button input
•  

What is done today.

Connect all sensors, re-crimp connectors to go through  the box and route and zip-tie wires.

Box installed, connections made and it is ready to be closed

 Installation completed, just need to put some label on it ;-)

 Started work on dashboard