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New Review of our App FlightPlan on Free Apps for me website

Check out the latest review of our app FlightPlan on freeappsforme!

This app allows you to 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. 

While the plan is being flown, the app will display the glass cockpit.  Real time telemetry from the drone is displayed on the glass cockpit. This includes pitch, roll, yaw, velocity (x, y, z), temperature, time of flight (tof), height, battery percentage, motor on time, barometric pressure, and acceleration (x, y, z).

You can download FlightPlan for FREE from the Apple App Store.

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An Arduino Library for the x-IMU3 GUI, IMU Data Visualisation Tool

IMUs with 3 sensors each measuring 3-axes, pump out a lot of data. It can be difficult to work out how your IMU is performing, which is why the free open source data visualisation tool from x-io Technologies is so great. It is available for all major operating systems (Windows, macOS, and Linux). #arduino #imu #datavisualisation #datavisualization

Read all about it in our latest article on Medium:

https://reefwing.medium.com/an-arduino-library-for-the-x-imu3-gui-imu-data-visualisation-tool-e5aaacf894a7

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Reefwing LSM9DS1 Library for the Nano 33 BLE Sense

This article explains how to write a C++ library to control and monitor the LSM9DS1 IMU sensor using an Arduino. If you want to really understand how a sensor operates, then write a library for it. It will take longer than you think, but the effort is worthwhile. This library can be downloaded using the Arduino IDE Library Manager or directly from our GitHub repository.

Read the rest of the article on Medium…

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ChatGPT — As a Programming Tool

Although ChatGPT is unlikely to be replacing programmers anytime soon, it can be a useful coding assistant. In this article, we will investigate how you can use ChatGPT (GPT-3.5) as a programming tool, and compare it to the earlier model found in the Open AI Playground (GPT-3). For simplicity, we will use mostly Python in our examples. Despite its limitations, ChatGPT is seriously impressive.

Read more at Medium…

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ChatGPT — Search Accuracy, Hallucinations, and Prompt Engineering

We love the progress that is being made in Machine Learning (ML) and predictive Large Language Models (LLMs), but believe users need to be cautious in their application and aware of the pitfalls. LLMs are being spruiked as a replacement for search engines (*cough* Microsoft *cough*), but until they stop hallucinating and making up facts, caution is warranted. #chatgpt #promptengineering #aihallucinations

Search Accuracy, Hallucinations, and Prompt Engineering https://link.medium.com/whhkf4Ruhyb

Filed Under: AI

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An Arduino Nano Electronic Speed Controller (ESC) — Part 3

In Part 1 we introduced our Arduino based ESC and followed this in Part 2 with an explanation of the power stage and MOSFET drivers. Part 3 focusses on the bootstrap capacitor which is part of the driver circuit used to turn the high-side MOSFET hard on. #arduino #bldcmotor #esc #bootstrapcapacitor #IR2110

https://reefwing.medium.com/an-arduino-nano-electronic-speed-controller-esc-part-3-e17392bd2887

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OLED Displays are slow!

We have been prototyping an Arduino based Electronic Speed Controller and planned to include a 0.96″ OLED display. Tests on an Arduino UNO, clocked at 16 MHz, have shown that this display could best be described as sluggish! Even using SPI, printing out 3 lines of text results in a loop cycle time of 15 Hz. Quelle horreur! This prompted us to investigate further to understand the bottlenecks, SPI vs I2C speed, and whether there were any work arounds. #arduino #oled #SSD1306 #DFR0650 #SPIvsI2C

https://reefwing.medium.com/oled-displays-are-slow-2f422840d735

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How to Design an Arduino Electronic Speed Controller (ESC)

Having delved into how BLDC motors operate and provided an overview of trapezoidal sensorless control, we can bring it all together in the design of an Arduino ESC shield. This turned out to be much harder than we expected – now we know why no-one does it!

This series of articles was sponsored by PCBWay.

#arduino #shield #ESC #bldcmotor

https://reefwing.medium.com/an-arduino-nano-electronic-speed-controller-esc-part-1-4f65076fb2e4

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Create a Custom Part in EasyEDA

As part of creating the new Sumobot motor controller PCB I had to create a custom part which wasn’t already in the EasyEDA library. The part is a momentary switch from Jaycar. The process is pretty straight forward, design the schematic symbol, design the PCB footprint and then link the two. Should you ever need to do it – here is how! https://reefwing.medium.com/creating-a-custom-easyeda-part-c02abdd85653