-
Li-Ion vs. Li-Po for drones and airplanes?
Lithium-Polymer (LiPo) batteries dominate the RC hobby. In like 98% of the cases, if you have a drone or RC airplane, or RC car, it is powered by a LiPo battery. The reasons are simple: they are high current capable, fast to charge, and have relatively high energy density. LiPo is, however, not the only…
-
3D printing with a polypropylene (PP) filament
3D printing does not end on PLA, PET-G, and TPU filaments. Yes, they are great and work just fine for the majority of cases. However, there are more options than just the basic filament types. Polypropylene (PP filament) is one of them. Strong, but not stiff, can be used to make hinges, enclosures, and boxes.…
-
What is the best flight controller firmware? Betaflight, Ardupilot, or INAV?
The question "What is the best flight controller firmware?" pops up here and there from time to time. Some say it's Betaflight. Some say it's Ardupilot. And reality? Reality is often disappointing, and there might be no one answer to that question. Every flight controller firmware has strong and weak sides. Ardupilot sucks on small…
-
INAV for tracked rovers and tanks
INAV 2.5 introduced rover and boat support. However, INAV setup on tracked vehicles like tanks or with differential steering was never really working like expected. Turning was possible but only in forward or backward movement – throttle had to be not-idle. And that meant that turning in place was not an option. Luckily, the INAV…
-
FlySky FRM302 & FTR16S AFHDS3 – The Ultimate 2.4GHz Long-Range Radio System
ImmersionRC Ghost is the new long-range 2.4GHz radio system that is getting the most traction in the media in the last few days. However, IRC Ghost is not the first 2.4GHz SX1280/SX1281 LoRa based radio system that has hit the market. FlySky FRM302 TX module and FlySky FTR16S AFHDS3 receiver are available since May 2020,…
-
ImmersionRC Ghost – what do we know about it?
If you ever wondered what is ImmersionRC Ghost and how it differs from the Team BlackSheep Crossfire or FrSky R9* long-range radio systems, this video is for you. In around 15 minutes I get through all the main features of IRC Ghost like: frequency LoRa modulation protocols update rates hardware antennas transmitter module diversity receivers…
-
Jumper T18 radio transmitter and FrSky R9 receivers
One of the advantages of the Jumper T18 over its competition is the JP5in1 Multiprotocol Module compatibility not only with 2.4GHz FrSky and FlySky receivers but also with Long-Range FrSky 868/915MHz R9 system. At least in theory, because when I got the radio, I could not bind and use any of my R9MM or R9…
-
ImmersionRC Ghost 2.4GHz long-range radio system
ImmersionRC made a surprise and showed a new RC radio link called Ghost. And trust me, this thing, if it will get adopted, will revolutionize the FPV we know today. Why? Because it's a combination of two worlds: 2.4GHz band and LoRa technology known from TBS Crossfire and FrSky R9 systems. All the details of…
-
INAV 2.5.2 – what is new, and should you upgrade?
The patch release of INAV, version 2.5.2 was released just today. Below you will find the list of the most critical changes and advice if to update from 2.5.0 and 2.5.1 to 2.5.2. Bug fixes: Fixed a bug that affected INAV OSD menu for editing servo mixer weights. It was not possible to have negative…