Alex Zarenin
  • Male
  • Montclair, NJ
  • United States
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Alex Zarenin's Discussions

XRotor 10A ESC throttle responce

Started Dec 4, 2015 0 Replies

I just posted results of my tests of XRotor 10A ESC at RCGroups, not to repeat myself again, here is the link: …Continue

Rotating Gyro vector using DCM for PID control

Started this discussion. Last reply by Alex Zarenin Nov 2, 2013. 8 Replies

Hi,Implementing PID controller requires calculation of error, integral of the error, and time derivative of the error. Good attitude system (like the DCM that I am using for my quad) usually provides…Continue

Tags: controller, PID, vector, Gyro, DCM

PID Controller for Quad Stabilization

Started this discussion. Last reply by Predrag Milicevic Apr 17, 2014. 1 Reply

Hi,Let's say you have a good attitude estimator (DCM, for example) and you would like to control the attitude of the quad - most of the articles are talking about a PID controller that generates a…Continue

Tags: control, stabilization, PID

Compass Module with Tilt Compensation - HMC6343

Started this discussion. Last reply by Alex Zarenin Oct 18, 2009. 2 Replies

Hi,I am new to this forum, so I apologize if I touch on the topic that was already discussed (however I tried to do the corresponding search on the forum and did not find relevant topics).So, to the…Continue

 

Alex Zarenin's Page

Latest Activity

Alex Zarenin commented on Alex Zarenin's blog post DIY 10-channel transmitter
"Nicholas, The SW for the board is absolutely custom - no external libraries, every single piece of code is in the project. I do not have a need for any "mixing" of the channels, but that would be relatively easy to add - as long as you are…"
Nov 28
Nicholas Witham commented on Alex Zarenin's blog post DIY 10-channel transmitter
"Fair enough Alex. How configurable are the outputs you can get? ie, can you get channel 1 to do something based on another channel, or can you implement expo? I have a project that could use exactly this, as long as the configuration is there."
Nov 28
Alex Zarenin posted a blog post

DIY 10-channel transmitter

Somewhere in the corner on the third shelf is the box with my old RC stuff, and in that box was sitting my very, very old Hitec Laser 4 transmitter – 72 MHz, 4 channels, definitely not usable anymore. So, I decided to engage in a project to convert this outdated piece of equipment into a 10-channel DSM2/DSMX transmitter.The goal was to use the case, existing gimbal assemblies and switches, and to add couple more switches and 2 potentiometers to create a transmitter with Throttle, Rudder,…See More
Nov 28
Alex Zarenin commented on Alex Zarenin's blog post DIY 10-channel transmitter
"Nicholas, Judging from the analysis of the frame, 14 channels is the max for DSM2/DSMX. As to the SBUS protocol, in my view it is something that was "hacked" together - I haven't seen a micro-controller that would have SBUS HW module,…"
Nov 28
Nikola Rabchevsky commented on Alex Zarenin's blog post DIY 10-channel transmitter
"This illustrates the great leap between building custom PCBs (pretty easy) to making a finished injection-molded product (really expensive).This also has me wondering why Futaba or some other R/C manufacturer isn't leveraging their expensive…"
Nov 28
Nicholas Witham commented on Alex Zarenin's blog post DIY 10-channel transmitter
"Awesome, great work. Is it possible to do 16 channels and output as SBUS? Also, will you share the files with us?"
Nov 27
Rana commented on Alex Zarenin's blog post DIY 10-channel transmitter
"Nice efforts ! Jumper T8SG does not support futaba however they claim. It did not bind with my existing Futaba 617FS receivers."
Nov 27
John Hestness commented on Alex Zarenin's blog post DIY 10-channel transmitter
"Nice project and write up!"
Nov 27
Alex Zarenin posted a blog post

DIY 10-channel transmitter

Somewhere in the corner on the third shelf is the box with my old RC stuff, and in that box was sitting my very, very old Hitec Laser 4 transmitter – 72 MHz, 4 channels, definitely not usable anymore. So, I decided to engage in a project to convert this outdated piece of equipment into a 10-channel DSM2/DSMX transmitter.The goal was to use the case, existing gimbal assemblies and switches, and to add couple more switches and 2 potentiometers to create a transmitter with Throttle, Rudder,…See More
Nov 26

Profile Information

About Me:
I am a professional programmer with the Ph. D. in Computer Science. Interested in RC flying. Now working on building stabilization board for the quadrocopter using dsPIC MCUs.
Please tell us a bit about your UAV interest
Quadrocopters and their control algorithms; I am working on my own control board implementing everything from scratch.
Hometown:
Montclair, NJ

Alex Zarenin's Blog

DIY 10-channel transmitter

Posted on November 26, 2017 at 9:00pm 7 Comments



Somewhere in the corner on the third shelf is the box with my old RC stuff, and in that box was sitting my very, very old Hitec Laser 4 transmitter – 72 MHz, 4 channels, definitely not usable anymore. So, I decided to engage in a project to convert this outdated piece of equipment into a 10-channel DSM2/DSMX transmitter.

The goal was to use the case, existing gimbal assemblies and switches, and to add couple more switches and 2 potentiometers to create a…

Continue

Yet another Flight Control Board

Posted on July 22, 2014 at 9:30pm 15 Comments

Encouraged by the success of my previous custom board (Version 2), which happily carries my quad in the air (maiden flight) with some advanced features like self-stabilization, course lock, control loop operating at 400 Hz, etc., I decided to jump on a more ambitious project - the board with more sensors, more ports, etc.

In summary, the new board (Version 3) has the following…

Continue

Orange RX satellite receiver and Lemon-RX UART-enabled receiver serial data feed

Posted on January 6, 2014 at 11:00pm 11 Comments

While working on my new autopilot control board (for quads) I realized that using 6 (or more!) MCU pins just to read data from the RC receiver is too taxing for the MCU as well as for the “real estate” on my board – there should be a better way to communicate with the receiver! A quick search on the Internet brought me to the Lemon-RX UART-enabled receiver (…

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