Full Fly-by-Wire Electric Outboard (2): Throttle Rough Design & Parts Selection @robertssmorgasbord
Full Fly-by-Wire Electric Outboard (2): Throttle Rough Design & Parts Selection  @robertssmorgasbord
Uploaded May 2025 | Updated September 2026, 20 hours ago
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

Full Fly-by-Wire Electric Outboard youtube.com/playlist?list=PLwq-2MnM58FKvpYgFXgNCjlKo14L0KI16
Full Fly-by-Wire Electric Outboard (1): Project Kick-Off & Overview youtu.be/dBxRUcn5a1Y
Haswing Protruar 2.0 24V Trolling Motor – Unboxing and First Impressions youtu.be/DSgi4pclBUA
Haswing Protruar 2.0 24V Trolling Motor – Teardown & Reverse Engineering youtu.be/I8f8282jB8g
Haswing Protruar 2.0 24V Trolling Motor – More Reverse Engineering youtu.be/RAsr5ENhv88
Arduino MCUs and MCP48XX/MCP49XX Family DACs – The Basics youtu.be/bj57xuQS7L8
Arduino MCUs and MCP48XX/MCP49XX Family DACs – The Details youtu.be/BrZYVWQ-p3U

#flybywire #electricoutboard #haswing #trollingmotor #outboardmotor #outboard #robertssmorgasbord
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Roberts Smorgasbord |

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

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