And I have a little lightbulb go on over my head. Wait, what if the output of the power supply I'm using to drive the pin isn't really linear? The two other engineers working with me both make O faces, and I stick a multimeter on the pin, and yeah, we're all chasing a DAC error on the supply, not an offset on our chip. Sigh. (2/2)

@smellsofbikes In Italian they are known as "guardabuoi", "ox watchers".We have them regularly just since the late 1980s, but their presence is growing.

And it works pretty well! Now I have to swap out the other two because one is bending.

@smellsofbikes Good luck!

I probably use too much support structure but this thing is all curves and no way it would stick to the bed.

The bench hardware: three amps (one is mistakenly grounded so it's not recording) and a prototype shield that splits SPI and power and also handles the parallel connection to the LCD. The gps module is visible off to the right. Yes the speed readout is in knots.

@smellsofbikes I didn't know that snake: a nice guy…https://en.wikipedia.org/wiki/Bullsnake

This mess is three channels of thermocouples, and soon it will be three channels of thermocouples with data logging and a display.

@smellsofbikes keeping the safety distance is important