Folks, what’s a good strategy if I want to match a small motor to a small Lithium battery?

The motor drives a blower. I need to control the speed of the motor within 10%. The entire instrument works one hour a day, and it needs to last for two years. It’s a consumerist product; no a high reliability requirements. The hardware is cost-sensitive.

The battery is a single 18650 Lithium cell, although it isn’t set is stone, and I can specify another battery, if needed. The battery will be recharged by the owner every day.

@TonyStewartSunnyskyguyEE75 So do you remember that welding question I asked you about the E7018 rods? And nobody seemed to know the answer. Well I figured it out by going to a welding shop and trying out my rods and theirs and measuring everything. It's the voltage. Voltage was the problem for why my rods weren't running.

@TonyStewartSunnyskyguyEE75 Just the voltage, nothing else. Current wasn't the problem, rod type wasn't an issue, rod length wasn't, transformer core saturation wasn't either. It was as simple as voltage.

@ThePhoton That works indeed. I wasn't expecting that even the symbol changes accordingly. So I assumed that there must be a way to place a depletion type component in the first place. Thanks.

Quick question, in this question - arduino.stackexchange.com/questions/39556/…

Please @ me so that I get a notification, I don't normally come on here

@Tri Yes, that should be it. (But I only looked quickly at the ADC datasheet and I don't know Arduino at all)

It looks like the required CPHA and CPOL settings might not be the most common ones. And there's some mode set by whether MOSI/SDI is set or not when CS/CNV is asserted.

We've got a live one... electronics.stackexchange.com/questions/477271/…

@Peter For the moment, anyway.