Full Fly-by-Wire Electric Outboard (2): Throttle Rough Design & Parts Selection

Includes battery voltage (30V) and current (50A) monitoring …
↓↓↓ Complete description, time index and links below ↓↓↓

This is the first video I made about the full fly-by-wire electric outboard project based. I should have published a project kick-off video first, but I wanted to forge ahead with the design, so I can order some parts 🙂 So let’s dive right in!

We start with digitizing the analog throttle input of the Haswing Protruars 2.0 motor controller (links below). Then we take care of the digital battery monitoring, which includes current (DC up to 50A with AC component) and voltage (up to 30V).

00:00 Intro – the more you know the more questions you have
00:42 Recap – unboxing, teardown and reverse engineering
01:22 Throttle requirements – replacing a potentiometer
06:40 Throttle part(s) – choosing a suitable DAC for the throttle
10:37 Throttle circuit – everything needed around the DAC
13:37 Isolation requirements – keeping battery minus and 0V apart
14:36 Isolation part(s) – a digital isolator for 3 SPI lines
17:35 Isolation circuit – just isolating the SPI lines of the DAC
18:01 Ammeter requirements – measuring DC with AC component
21:09 Ammeter part(s) – an AC/DC current sensor for 50A
24:02 ADC requirements I – analog current sensor signal to digital
25:01 ADC requirements II – measuring LiFePo4 charge state
27:26 ADC part(s) – choosing a suitable ADC for voltage and current
30:57 Am-/voltmeter circuit – a current sensor and an ADC
32:58 Wrap-up – leave a comment, if you liked it or not, bye

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