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Generate S.Bus with Arduino in a simple way
Did you noticed that lately I write about radios quite often? Well, I do and it’s not a coincidence. Proper introduction for what I’m working on will happen in a next few days, but now I will only write that this will be a mid-range, cheap, DIY radio link for UAVs. By mid-range I mean…
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E45-TTL-100 not transmitting when connected to Arduino
While working on one of my project involving Arduino and E45-TTL-100 LoRa 868MHz radio modules, I’ve discovered that it is not working exactly like expected. Documentation states: (…) When the data inputted by user is up to 58 byte, the module will start wireless transmission (…)(…) When the required transmission bytes is less than 58…
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Project Dualcopter – worklog #3
It's been exactly one year since my last update on Project Dualcopter. On 20th of October 2016 I've posted that there was a progress. Now, 12 months later, I once gain report, that there was a progress…. That was slow…. I've finally installed control surfaces and servos I've finally decided where LiPo will go: to…
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INAV 1.8 Release Incoming! New Features & Improvements
Next release of INAV, navigation enabled flight controller software, is almost here. INAV 1.8 RC1 has been released just 2 days ago. List of changes is rather long, so here is shortened version with the most important things:
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E45-TTL-100 Configuration Tool for Linux
This will be fairly short entry. Do you know what E45-TTL-100 LoRa wireless serial modules were missing? They were missing configuration tool for other platforms than Windows. And even on Windows it had some minor problems. Luckily, this has changed only a few hours ago. Stronnag, the man behind mwptools mission planner and tools for…
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And the most popular flight controller for INAV is… (August 2017 edition)
More than 2 months after previous “What it the most popular flight controller for INAV“, welcome to second edition. I mportant, this is not the number of boards flashed with INAV, but rather number of times a board was connected to Configurator! This counts TARGET software name, not retail name. For example, all clones of…
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RunCam Split very late pseudo review: it’s not good
I own RunCam Split. I own it for like 2 months now, and it’s still in a box. Never connected, never really used. And in the meantime, I’ve build 2 mini quads are rebuild third. Why is that? Is there something wrong withthis camera that I’m not using it anywhere? And not planning to? Let’s…
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Testing 868MHz LoRa range, part 3: round trip
After determining that range of 868MHz LoRa wireless modules E45-TTL-100 have, at least, quite impressive range (5,7km and I was out of line-of-sight to test further) I’ve decided to test something else. In the beginning I was planning to use those radio modules for telemetry only, but then another thought crossed my mind: why not…
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Quick note on SEMTECH SX1276 100mW output mode
Few facts about SEMTECH SX1276 LoRa modem and 20dBm (100mW) mode: +20dBm (100mW) is possible only on PA_BOOST pin Pins RFO_LF and RFO_HF allows only up to +17dBm (50mW) Maximum allowed duty cycle while using +20dBm mode is 1% Maximum allowed VSWR while using +20dBm mode is 3:1 The biggest problem with +20dBm on PA_BOOST…