anchor chain counter to NMEA0183 Garmin proprietary sentences via arduino?

[GHA]

For the winter, I'm planning on a second box in the e/r monitoring gearbox oil pressure (got the senders but not got real estate for the gauges, nor I want them tbh!), cooling water temp on the elbow, exhaust gas temps and a few more. I'll use a teensy as it's small enou.

Ta for the update.
Engine temperature sensors are great, I turn the engine head temperature into a water temperature nmea sentence so it's visible on Opencpn dashboard running on a tablet. Voltage of the main battery bank is handy as well, ads1115 sensor. Thermometers are ds18n20.

 

[vas]

Ta for the update.
Engine temperature sensors are great, I turn the engine head temperature into a water temperature nmea sentence so it's visible on Opencpn dashboard running on a tablet. Voltage of the main battery bank is handy as well, ads1115 sensor. Thermometers are ds18n20.

I may be missing something, OK, temp sensors and thermometers you do need, but a sensor for battery bank voltage??? Cant you just get a measurement via a voltage divider and present that?
I'm asking as for current gains and drains I have already a Victron 700 battery monitor. It seem that it has a can bus output that I could try and connect to my black box so I can get more data out of it and into N2K on the f/b, but it's a bit ott tbh. Hope the winter is not that bad!

cheers

V.

 

[GHA]

I may be missing something, OK, temp sensors and thermometers you do need, but a sensor for battery bank voltage??? Cant you just get a measurement via a voltage divider and present that?.

Doh, yes - course you can.

I'm running a Pi so need it for that. Though for the sake of a fiver the ads1115 gives you 4 channels of accuracy way beyond the arduino ADC, 16 bit as opposed to 10 bit, well 15 bit really, uses one bit for +/- .