About

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Male


Please tell us a bit about your UAV interest

Build a WiFi controlled UAV


Hometown:

Aachen


Activity Feed

Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"I use the complete ArduPilot library for handling the sensors and motors (AHRS, InertialNav, GPS, ..) but wrote some alternatives for filtering and sensor fusion, frame and network code as well as scheduler. My firmware is in contrast fully OOP. My…"
May 15, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"I wrote my own flight control firmware and I was wondering about this behavior. 
One day I had the idea that I want to control my quad over smartphone or laptop. 
So commands go over uartA. Since I recognized that radio would be nice too, I bought a…"
May 15, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"I have the problem, that if I read the radio I get only crap if I use heavily the CPU. If the load is low I read correct values. Why is that so. Happens on AM 2.5 and 2.6. Also using UartC. On uartA I can always read correctly independent on the CPU…"
May 15, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"If you were not touching the mux, telemetry on uart0/2 should run on uart0. "
Mar 21, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"It is likely an implementation problem. 
Write a firmware for testing reading and writing on uart0 & uart2"
Mar 20, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"I don't understand. If you use the 3dr radio on uart0/2 it will go over uart0 as standard. 
So you can use the cam over uart2 without probs. However if you disabled the muxer, than there will be an bus collision."
Mar 20, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion Using USB and 3DR radio at the same time with APM 2.5
"I made the mod, wrote a firmware and it is working perfectly. Just if someone is interested. 
All three serial channels can work independently. I have no clue why a mux was implemented."
Feb 8, 2014
Daniel Frenzel replied to emery's discussion UART0/2
"I want to try something similiar. Have you results so far?"
Feb 8, 2014
Daniel Frenzel posted a discussion
Hi,I wonder currently about how to use the 3DR radio with the serial USB simultaneously. I have an APM 2.5. In the wiki is written, that a hardware muxer is preferring uart0 over uart2 at the uart0/2 port if usb cable is inserted (if I understood…
Feb 8, 2014
Daniel Frenzel posted a discussion
Hi,Is someone using these radios to send custom "text/whatever" messages instead of using mavlink protocol?Greetings, Daniel
Feb 6, 2014
Daniel Frenzel replied to Daniel Frenzel's discussion I made a firmware based on the ArduCopter 3.* library for RC via WiFi
"Added functionality:
- Reading Sensors (Barometer, Compass possible, Inertial), GPS is planned
- Sensor logging (as json string) on the RPi in a logfile
- Changing PIDs is possbile at runtime now
- Calibration of the inertial is possible at runtime…"
Dec 8, 2013
Daniel Frenzel replied to Carles Gelada's discussion Accsessing to HAL (imu and gps) in Learning to program the Ardupilot Mega
"I also wonder no one knows here"
Nov 26, 2013
Daniel Frenzel replied to Daniel Frenzel's discussion I made a firmware based on the ArduCopter 3.* library for RC via WiFi
"Added a init.d script for raspbian. Unfortunately the debian serial driver seems to be buggy. 
The current server script represents a workaround. It seems to be stable but I am really not totally sure about this bug. "
Nov 1, 2013
Daniel Frenzel posted a discussion
Hi,I made my own firmware because I want to control my Quad via WiFi over a Raspberry Pi. The Project is based on Owens approach and I did a lot of filtering. Unfortunately the sensor fusion via quaternions of the MPU6050 supported in the old…
Oct 28, 2013