GStreamer examples

https://developer.ridgerun.com/wiki/index.php/Jetson_Nano/Gstreamer/Example_Pipelines/Encoding

librealsense on Raspberry Pi 2, Raspberry OS bookworm and Python 3.11

This took 12h (!) on a Raspberry Pi 2 install SSL install cmake $ cd ~$ wget https://cmake.org/files/v3.28/cmake-3.28.3.tar.gz$ tar -zxvf cmake-3.28.3.tar.gz; rm cmake-3.28.3.tar.gz$ cd cmake-3.28.3$ ./configure –prefix=/home/pi/cmake-3.28.3$ make -j1$ sudo make install$ export PATH=/home/pi/cmake-3.28.3/bin:$PATH$ source ~/.bashrc install librealsense build pyrealsense Python bindings

Connect ExpressLRS RC receiver to Arduino Mega2560 via SBUS

Install „Bolder Flight Systems SBUS“ Library in Arduino Library Manager Connect to ELRS Receiver via WiFi and enable „Inverted SBUS“ as the Serial Interface. Select RX and TX pins and save. Hook up the UART TX pin of the ELRS receiver to a UART RX pin on the Arduino. Bind and connect ELRS receiver to…

Create an open-loop speed controller (Big rover robot platform – Part 3)

We want to control rotational speed [n] in rpm, which is proportional to back-emf [e] in V. They are related via the motor constant [Kv] in rpm/V. Unfortunately, we actually can’t directly control e, since the motor windings, brushes, leads, and also our H-Bridge MosFETs add inductance L and resistance R to the circuit. We’ll…

Installing nVidia ISAAC SDK and ISAAC SIM

Prerequisites: Ubuntu 18.04 LTS, an nVidia GPU Sourced from: https://askubuntu.com/questions/1342104/how-do-i-run-nvidia-isaac-on-ubuntu-20-04 Sign up to the NVIDIA Developer Program Accept EULA and download ISAAC SDK (a .tar.xz file) Untar ISAAC SDK and install dependencies 4. Build and run sample application 5. Download ISAAC SIM Unity3D Download Isaac Sim Unity3D Download Isaac Sim Unity3D from the Isaac Developer…

Linearize H-Bridge Output Voltage (Big rover robot platform – Part 2)

Brushed DC motors are cheap and robust, but inherently hard to control accurately compared to modern BLDCs, especially at low speeds. This is fine for applications like household appliances or electric power tools, where positioning and precise speed control aren’t needed. For a skid steer robot, however, it is a prerequisite even for just driving…