---
title: OneSec Propulsion System
created_date: 2025-10-02
updated_date: 2025-10-02
aliases:
tags:
---
# OneSec Propulsion System

## Overview
- Propulsion harness
	- 4 servos:
		- power 70V
		- pwm line (2x) (shared per rotorhead)
	- i2c line with 4 sensors:
		- 2x angle sensor
		- ambient light detection
		- temperature and humidity sensor
	- User RGB light
	- Deicing PWM, unused for now.
- 2x 3 motor cables

Each rotor head side has its own servo. Calibration is going to be a very difficult issue.