MiniQuest - Sneeky 'Pas' Bypass

[Chimpofm]

Hi everyone, its raining, and im bored,

I recently bought an e-bike, and as you know, UK laws on e-bikes are pretty strict—you’re not allowed throttles or to exceed 15.5 mph. The speed isn’t an issue; 15.5 mph on a bicycle is actually quite fast. My main concern is the need to constantly pedal.

I’m thinking of adding a covert “push to go” button—hidden but easily accessible—that bypasses the pedaling requirement. The bike’s pedal assist sensor seems pretty crude: there’s no speed variation, just on or off. A little pedaling or a lot produces the same motor output.

My idea is to measure the sensor’s output while pedaling and attempt to recreate it using an Arduino Nano. When powered, the Arduino would produce the same signal, with the power coming from the push button.

I’m just about to start this project—have I overlooked anything, or is there something I should be aware of before I begin?

Thanks in advance for any guidance!

[Chimpofm]

so im gona start by making an ocilascope. convienetly i found this video - https://www.youtube.com/watch?v=v6sXNLbN14I

[Chimpofm]

That video was was lacking code. Plus I was lacking hardware. But i found a screen I could never make work. And an old dusty esp32. So me and gpt decided to hammer it out. This will do to see what kinda signal the pas sensor is making when in use.

[Chimpofm]

Boop boop boop. Turns out that was a waste of time. While probing for the pass the bike shot forward. Looks like I found a throttle attachment On the esc. Meeoooowwwwmmm. Off to ebay/ aliexpress.

sneaky sneaky

[Pilgrimsmaster]

@Chimpofm

Looks like I found a throttle attachment On the esc.

Good find.
When you said crude, I thought it may have had a cadence sensor you could have bypassed, but your solution sounds much more gooderer

Meeoooowwwwmmm