I surprised myself with the drone named in the title. I’m really enjoying flying this drone because I’ve always wanted to have some kind of device that can fly and the onboard 4K camera takes it to a whole new level.The batteries are not a simple enclosures filled with toxic material with two contacts but […]
Examining DJI Mavic Air battery Read More »
I remember when I first saw Steadicam stabilized recording and I was completely amazed by the soft camera movements. It looked so good like it was flying. Of couse it was only a mechanical filter. Since then everyone has gimbals because of the phones and action cameras. They all use active stabilization.I also bought an
I was interested in the smart home topic for a while and finally the first actuator is operation in my flat. I’ve already had sensors and I processed the data coming from them using a Raspberry PI and RRDTool which was spectacular. During a heat wave in the summer the need arose for controlling the
Controlling HVAC over the Internet Read More »
The fun We converted back one of the RobonAUT cars to a regular RC car. It had a decent speed by default but we managed to make things more interesting by replacing the motor and the motor controller. We chose a brushless motor and a suitable controller. We configured the controller with it’s programmer module
We participated in the three consecutive years in the BUTE organized RobonAUT contest. Our team’s name was “Runner-up” and we finished as the runner-up on the first two occasion and we shouldn’t talk about the third one. 2015 We started the development with huge delay because of our study tasks but we always managed to
After many MCU based project I had a need to have a generic protocol between a PC and an MCU. Protocol My protocol communicates in a binary way not a text based way so it provides kind of a dense communication. This make it able to transmit high resolution real-time sensor data. The values are
ControlProtocol and ControlTool Read More »
One my friends from middle school had the idea to create a cheap device that can measure and collect the LTE signal levels.We got a suitable devboard for the prototype and I ported OpenWRT to it. I also needed to modify the LTE module’s driver to make it work.The user-space software sent the data to
LTE measurement equipment Read More »
As a result of a homework for the specialization I made a USB thermometer that can read the data of OneWire sensors. The base of the device is an STM32F4 Discovery kit that has a 168MHz Cortex-M4 MCU. My circuit is connected to the kit by the expansion pins. There’s three 7 segment display, two
Az önálló laboratórium tárgy keretében készítettem egy GPS adatgyűjtőt, amely MicroSD kártyára tudja menteni a bejárt útvonalat. Ezen kívül a kijelzőjén képes megjeleníteni különböző adatokat, mint például az aktuális pozíció, sebesség, irány, stb. A tárgy befejezése után még sokat foglalkoztam vele, így plusz funkciók is beépítésre kerültek. Felépítése Az áramkör központi eleme egy PIC32MX mikrokontroller,
Az informatikusok rettegett “Számítógépes grafika és képfeldolgozás” tárgyának házi feladatát megirigyelve kezdtem el írni egy sugárkövető programot. A jelentős erőforrásigény miatt az egész program abban a szellemben készült, hogy több számítógép együttes teljesítményét is kitudja használni. A sugárkövetés egy számítógépes grafikai eljárás. Gyakorlatilag azon alapul, hogy a program megvizsgálja, a kép adott pontjára milyen színű