We have a solar system and I wanted to keep an eye on our relative energy consumption and generation during the day. The SolarEdge inverter that we use has a mobile app and a web dashboard but neither refresh automatically. This article explains how I set up the Seeed reTerminal as a dedicated web kiosk to be able to monitor our solar performance in near real time. #solar #raspberrypi #webkiosk
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Nexgen AHRS Arduino Library
Attitude and Heading Reference System
Our latest article on “How to write your own Flight Controller Software” is available on Medium. This article covers the Attitude and Heading Reference System (AHRS), IMU Filters and Sensor Fusion. We have released the open source Nexgen AHRS Arduino library to demonstrate these techniques on the Nano 33 BLE.
https://reefwing.medium.com/how-to-write-your-own-flight-controller-software-part-7-64daef8299ee
How to Write your own Flight Controller Software — Part 5
There are a number of libraries that make working with the LSM9DS1 IMU (Inertial Measurement Unit) easy. In Part 5 of our series on writing your own flight controller software we will focus on the IMU and in particular explain the best ways to convert the gyro rate and accelerometer force data to a roll and pitch angle. The yaw angle is then calculated using the pitch and roll and magnetometer data. This discussion, is in the context of building a drone flight controller based on the Arduino Nano 33 BLE.
Our follow up part in this series will explain how to calibrate the LSM9DS1 IMU and store the results plus use sensor fusion to improve the accuracy of the angles and overcome sensor shortfalls.
Read the complete article on Medium.
New Flight Plan Review
The website “Free Apps for Me” has recently reviewed our iOS drone mission control app called Flight Plan. You can check out the review here.
Debugging the Arduino Motor Shield
Our L293 based motor shield had some problems! How do we diagnose what the problems are and create a better design? This final tutorial, will explain how we went about troubleshooting the issues and creating a better circuit to be used in version 2 of our design. #arduino #uno #motor #shield #debugging
https://reefwing.medium.com/debugging-the-arduino-motor-shield-21c9218bdcc2
How to write your own Arduino Library
Following our article on how to design your own Arduino motor shield, we have written a companion piece that explains how to create your own Arduino library. Our explanation focuses on all the things that the beginner tutorials don’t cover. #Arduino #UNO #STEM #nexgencodecamp
https://reefwing.medium.com/how-to-create-your-own-arduino-library-540f833a49cf
How to write your own flight controller software – Part 1.
We recently published a new article about writing your own flight controller software.
Why would You?
It is a reasonable question. There are a number of Open Source and proprietary quadcopter flight controllers with firmware available. The problem is we want to use an Arduino board, to fit in with our other training programs. As soon as this becomes a constraint your options are very limited. In fact, your only real option is to write your own. So here we are.
Initially we attempted to port BetaFlight across to the Arduino Portenta H7, as this is designed for STM32 hardware and we know that writing your own flight controller firmware is tough and time consuming. We managed to get BetaFlight to compile for the H7 but because Arduino’s use a custom bootloader which is located right where BetaFlight normally sits in memory, flashing the firmware was problematic.
You can read all about our drone design adventures.
Creating Custom SF Symbols
A New Article by Reefwing Software on Medium – check it out: https://medium.com/@reefwing/creating-custom-sf-symbols-e295a2177aaf by @reefwing on @Medium
FlightPlan is out now!
This app allows you to visually program a flight plan for the Tello Drone and then upload it to the drone for execution. You can also fly the drone manually with the app if you wish. Real time telemetry from the drone is displayed on the glass cockpit.
Tello is a mini drone equipped with a HD camera that is manufactured by Ryze Robotics and includes a flight controller with DJI smarts.
We access the Tello API by connecting to the airframe via a WiFi UDP port. Once a connection is in place, the drone is controlled using simple text commands.
It is available on the Apple App store. Download FlightPlan.
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