Non-Symmetric Non-Planar Quadrotor

This project started out as an experiment. The idea was that standard flight controllers should be able to control non-planar shaped quadrotors as long as the control board is mounted near the center of gravity. I decided to try the idea out. The project addresses the symmteric / non-symmetric forms of non-planar motor layouts. Basic…

USB2PPM Interface

Jaeyoung Lim Blog post related to the slide can be accessed here Summary USB2PPM Interface by Jaeyoung Lim Contents – Overview – Need Finding – Problem in current works – Wiring – Software – Firmware – PC Interface – Projects 3. Overview – USB2PPM is a device that can translate serial or voltage command values…

Constant Yaw Rate Quadrotor

A new flight mode was implemented on to the modified Arducopter firmware that is capable of maintaining constant yaw rate while the quadrotor is able to be controlled by the pilot in respect to the inertial frame. Such a flight mode can be used in localization applications (SLAM) or imaging. Sensors that have a narrow…

Teleoperated Car : Zipcar

Post written by Jaeyoung Lim Project by Jaeyoung Lim, Keunwoo Park, Dongho Kang Overview The Zipcar was an experimental project towards a more instinct interface from the conventional RC stick based interface for FPV driving experience. A racing wheel for gaming was used to control a remote control car providing onboard first-person-view(FPV) Video and data…

First-Person-View Quadrotor for Teleoperation

Recent attention to FPV racing and FPV experience shows that visual feedback from a teleoperated platform can give a very immersive experience. A FPV quadrotor platform was built to try the FPV experience and the results was satisfying. Visual Feedback is done using a video telemetry on 5.8GHz band. APM 2.7 ruuning Arducopter was used…

My Multirotor Projects

Jaeyoung Lim Summary HeavyLift Multirotor for Medium Altitude Science Platform Multirotor platform for Cansat Deployment Jaeyoung Lim Seoul National University Contents • Introduction to Multirotors • Dynamics • System Layout • Motor Dynamics • Performance Estimation • Cansat Deployment • Heavy Lift Multirotor Introduction to Multirotors Flight control using multiple rotors Current Issues Banned out…

Quadcopter for Cansat Droptest

Cansats are a can size satellite used for educating students to teach how to design and implement systems. Cansats are launched in small rockets which drop the cansat in around 100m ~ 3km altitude. From deployment and operation of the satellite is done in the same procedure as of the real satellites. However, in a…

Heavylift Multirotor

A multirotor platform that can robustly maintain its attitude and control precise positions can be used as a low altitude science platform. The multirotor was developed to maintain it’s position while flying up to 4kg of payload. In this project we demonstrate a mission profile by an autonomously controlled multirotor moving in a fixed GPS…