About Me:
A student, like DIY electronics in spare time
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Please tell us a bit about your UAV interest
Quadroter
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"I further process some data to show injection angle dependent stator inductance. When the rotor flux is aligned with injected signal angle, the effective indutance reaches to the lowes value. This breaks the two fold symmetry in initial rotor…"
After my field orientation control algo worked, I applied it to the quadrotor that I am building. Then, I noticed there are about 30% of chance of reverse spin in any of the hour motors. Then, things get pretty challenging, there are only about…
"The display is using Displayport input.
I am not a Pi fan, so know not much about Pi... sort of remembering Pi is using HDMI, you then need a HDMI to DP adapter to use the display."
I am not a Pi fan, so know not much about Pi... sort of remembering Pi is using HDMI, you then need a HDMI to DP adapter to use the display."
"The board is nothing other than connecting eDP to a full size displayport connector, power supply, and constant current backlight driver.
The backlight driver is not that straight forward, but it is very much doable.
In this sense, if the…"
The backlight driver is not that straight forward, but it is very much doable.
In this sense, if the…"
"I only made one unit because I only sourced components for one unit.... The cost is fairly high (~$95) so I would consider it is less competitive to commercial product... anyway, just FYI"
I made a adapter board which can drive the back light and pinout a full size DP port. The backlight driver is running in constant current mode and dimming is done through a digital potentiometer.The input is 5V compatible, but preferred to have ~ 2A…
"indeed, a five year old desktop running virtual machine makes 7 hrs understandable.
the building speed does not that critical to me, 2hr is still to long for me to have multiple attempts per day (Various reason not be able to spend much time on…"
the building speed does not that critical to me, 2hr is still to long for me to have multiple attempts per day (Various reason not be able to spend much time on…"
"I meant " I am NOT familiar with Linux ...." "
"I am familiar with linux to begin with. let along embedded system and open source communities....
The build system I used is fresh installed Ubuntu x64 14.04LTS in a Virtual box. The whole build is ~7 hrs.Not too bad if you let the initial build…"
The build system I used is fresh installed Ubuntu x64 14.04LTS in a Virtual box. The whole build is ~7 hrs.Not too bad if you let the initial build…"
I spent quite a few hours in figuring out a way to build Yocto image for edison from its recipes. Here is the steps in building an image successfully.1. download recipes…
"Hi Sabido,
Yes, my M8N is using old firmware.
Be honest, galileo does not have much coverage so not having it is acceptable to me, beidou is the same case.
RTKLIB and M8N combination works fine to me. I am not looking for centimeter or…"
Yes, my M8N is using old firmware.
Be honest, galileo does not have much coverage so not having it is acceptable to me, beidou is the same case.
RTKLIB and M8N combination works fine to me. I am not looking for centimeter or…"
"Hi Aleksander,
this is the information I used to patch the GPS module.
http://wiki.openstreetmap.org/wiki/RTKLIB-compatible_GPS_devices
My M8N is fairly old, I bought it last year and only GPS/Glonass. Galileo and Beidou are not available."
this is the information I used to patch the GPS module.
http://wiki.openstreetmap.org/wiki/RTKLIB-compatible_GPS_devices
My M8N is fairly old, I bought it last year and only GPS/Glonass. Galileo and Beidou are not available."
"Correct, but M8T is way too expensive to me.
There is a way to "patch" M8N to have raw output. Just additional a few line of code would do the trick."
There is a way to "patch" M8N to have raw output. Just additional a few line of code would do the trick."
I just realized this is the very first blog I ever wrote :) RTK GNSS is an interesting topic for many quadrotor diyers like myself. It can provide stable sub meter coordinates which is very attractive for autonomous quadrotor flights. Initially, I…
