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kolin's Discussions

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

Using android phone on plane for telemetry and other

Started this discussion. Last reply by kolin Nov 6, 2011. 2 Replies

I have idea of using cheap android phone on the plane. If  attach simple bluetooth<>serial module to Ardupilot telemetry port, Android phone will be able to conect to it. Then special software…Continue

 

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Latest Activity

kolin replied to Andrew Adams's discussion Drive Stepper Motor via RC
"https://store.cunningturtle.com/product/ct-60 I need one too. I is AVR and opensource firmware. Answer one year late... :)"
May 8
kolin commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Hi, swapping module should be easy if you can desolder old one without ruining PCB. Just load OpenLRSng and ready to go. Good, well MATCHED antennas are must. Forget about ƛ/4 whip, do not even dare to think about ƛ/2 dipole directly connected to…"
May 1
Noth666 commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Hmm, didn't even check for the modules existing also in 868mhz, cool stuff! I have the OrangeRx OpenLRS from hobbyking so I will probably try to swap the moduled for 868mhz ones :). Do you have any estimate on how high the duty cycle is? what…"
May 1
Adilson Oliveira commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Oh, I have 6.3, that's why didn't work. Thanks."
Apr 25
kha commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Those are Eagle (I use 6.4.0 currently)."
Apr 25
Adilson Oliveira commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Hi @kha. Great work! Can you tell me what software did you use for the schematics? I tried to open it with Kicad and Eagle and didn't work."
Apr 25
kha commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Thanks for the nice words =) I have also created some hardware for OpenLRS and those are available on github. https://github.com/kh4/openLRSngTX -- OpenLRS 1W TX board, not pin compatible with flytron but supported by…"
Apr 24
kolin commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Guy nicknamed kha, made fantastic firmware OpenLRSng. Among other great features it brings support for 868MHz band! Tested with my prototypes and results are much better than hacked thundead firmware originally posted…"
Apr 23
kolin commented on Stefan Gofferje's blog post No more LiPos, or Meet the scientific accident that could change the world
"I am looking forward to see real replacement of LiPo batteries. However, charging battery in seconds means charger of properties like industrial welding machine. Example: Charging common LiPo 3S/2200mAh 2.2Ah*3600=7920As If you like to charge it in…"
Mar 25
kolin commented on Hunter Parris's blog post Ubiquiti XR9 XtremeRange 900MHz Embedded Radio module
"Sorry to tell that, it is useless for small drones. You need mainboard to plug this card to. Cheapest and lightest I can find is Mikrotik RB411, form factor 105x105mm about 100g. Then you can change firmware to OpenWRT. Pretty complicated...."
Jan 5
Adilson Oliveira commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Ok, I'll check. What version of eagle have you used? 5? The 1W version should be easy. IIRC, the RFM23BP is pin compatible with the RFM22 so it should be a matter of changing the board layout."
Dec 24, 2012
kolin commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Adilson: You have to enable layers, way I saved it there is only 20-Dimensions visible I am also planning to create 1W version. "
Dec 24, 2012
Adilson Oliveira commented on kolin's blog post RC system on 868MHz based on OpenLRS
"The package is missing the board layout for the receiver. Can you please add it? Thanks."
Dec 23, 2012
Adilson Oliveira commented on kolin's blog post RC system on 868MHz based on OpenLRS
"Iǘe been thinking about using the 1W module, RFM23BP. Your files gave me a good headstart, thanks."
Dec 23, 2012
SlimTom commented on kolin's blog post RC system on 868MHz based on OpenLRS
"I am interested too... (I'll try to send you PM)"
Dec 23, 2012
lot commented on kolin's blog post RC system on 868MHz based on OpenLRS
"This is really nice! Using 868 mhz for the radio we can free the 2.4 band for the wifi of gopro!I want one! Thanks!"
Dec 23, 2012

Profile Information

About Me:
nop
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 17 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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