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kolin's Discussions

Upgrading from 2.40 to latest 2.73, possible inconveniences?

Started this discussion. Last reply by RocketMan Jun 2, 2013. 1 Reply

Hi,I have nice setup of APM1 (2560) with Arduplane 2.40 in large flying wing. Plane is grounded for about a  year now and I want to fly it again. It worked well, everything was set up well. I am…Continue

How to force Arduplane to run without baro sensor

Started Jun 8, 2012 0 Replies

HiHow do I disable baro sensor in code? Where do I have to touch in code? Probably just comment some lines. Code of APM si too much for me.What is pressure sensor used for on Arduplane? I hope it is…Continue

Tags: baro, without, arduplane

What CAD software are you using and why?

Started this discussion. Last reply by Andrew Adams May 7, 2012. 2 Replies

Simply:What CAD software are you using and why?Me:For 2DI use Solid Egde 2D Drafting  - free versionIt's "free" (you need to register). I tried many of CAD programs, both free and full versions…Continue

APM1.4 2560 failed I2C

Started this discussion. Last reply by Jake Stew Apr 5, 2012. 3 Replies

Hi,Just before maiden of my Funjet APM stopped working. After few hours of debugging I figured out I2C devices are not working, preventing APM to initialise. After all I wrote simple programvoid…Continue

Tags: static, discharge, ESD, I2C

 

kolin's Page

Latest Activity

kolin commented on Tom Sozzi's photo
Thumbnail

DSCI0015

"Mad Max airplane :)"
21 hours ago
kolin commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Hi Daniel, Do you have experience with using two independent cameras, two video transmitters, two receivers and finally hacked video goggles? Resolution would be greater, off the shelf components and even added redundancy. I have ever wanted to try…"
Jul 5
kolin commented on Markus Järve's blog post X4 first maiden
"Gret design! Could you please tell us about other autopilots you worked with, like micropilot? It is very expensive and I wonder if well tuned pixhawk can do the same."
Jun 22
kolin replied to Víctor Mayoral's discussion ESC in one chip
"IC you mentioned look like common fasat optocoupler http://www.avagotech.com/pages/en/optocouplers_plastic/plastic_intelligent_power_module_interface_optocoupler/hcpl-m452/ Actual ESC mosfets might be on other side of board."
May 18
kolin commented on CrashingDutchman's blog post Turnigy T1000FC Fixed-wing Auto Pilot System With GPS and Return To Home
"I do not see motor output. Does it mean I have to set up failsafe with about 60% of motor on? Wow, it is very safe when you turn off radio with plane powered up on the ground :-P"
Jan 6
kolin commented on Joshua Johnson's blog post CADDrones.com - Beta Now Open - Open Source Community/Database
"I am registered, how and where I post CAD drawing I like to share?"
Dec 28, 2013
BingRu Guo commented on kolin's blog post RC system on 868MHz based on OpenLRS
"I want to do 1W 433MHZ TX .I can buy RFM23BP in China"
Nov 21, 2013
BingRu Guo commented on kolin's blog post RC system on 868MHz based on OpenLRS
"I want to know where I can down the HEX for openlrs? "
Nov 21, 2013
kolin commented on Armen Poghosov's blog post Gas+electric hybrid multi-copters ...
"How about "classic" electric multicopter with added engine/generator with backup battery? Like big diesel-electric trains. Redundancy would be done in power management unit, not mechanics/software. I am sure you considered this, I want to…"
Oct 31, 2013
kolin commented on Gisela & Joe Noci's blog post Video and Datalink Antenna for airborne and ground tracking systems
"Please post drawings for 868Mhz antenna. It would be great for my RC system http://diydrones.com/profiles/blogs/rc-system-on-868mhz-based-on-openlrs"
Oct 25, 2013
MV Reddy commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Since 868MHz is not on any of the PMR channels, what frequency is beacon mode transmitted at?"
Oct 15, 2013
kolin commented on Alan Sanchez's blog post SaceMouse for copter control
"Some guy used this 3D mouse for Mikrokopter years ago. Not a new idea, but definitely great one. http://www.mikrokopter.de/ucwiki/en/Riddim Does this device acts as joystick in OS?"
Oct 8, 2013
kolin commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Hi, sorry there is no BOM. You can generate it from Eagle. All items are meant to be as common as possible."
Sep 30, 2013
Evan-cs commented on kolin's blog post RC system on 868MHz based on OpenLRS
"hi kolin, i am interested to make it myself, but i am newbie on pcb, can not find BOM list here?  Evan"
Sep 27, 2013
kolin commented on Geoffrey Preston's blog post Mini DC-DC Voltage Stabilizer/Regulator Module
"I use this one to make 12.00V from 4S battery for FPV on my copter, works really well. No lines in video so far. I use other one without additional LC filter on my arduplane to make 12.00V from 6S. Also works well. Place a drop of heat glue on…"
Sep 11, 2013
kolin commented on Andrew Van Der Plaats's blog post Sky Sapience Delivers Pre-Production Hovermast to the IDF
"Thomas: This is really nice and light power supply. I won't be cheap really. But it makes more sense than using server power supply. But you can get them free if you are in IT."
Sep 3, 2013

Profile Information

About Me:
nop
Please tell us a bit about your UAV interest
fpv, mikrokopter
Hometown:
Prague

Kolin's Blog

RC system on 868MHz based on OpenLRS

Posted on December 23, 2012 at 11:35am 21 Comments

Story

About year back, I found OpenLRS. When looked on schematics I discovered it's really simple. I checked local parts supplier and found out 433Mhz and 868Mhz RFM22B modules to be about 9$ Then calculated that price would be half if I do it myself. So I ordered 433Mhz (868 was not in…

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