Testing the Speed of A Cheap RC Car
A short post about some experiments conducted to test the spurious speed claims on a cheap remote-controlled car purchased from eBay. (AAA batteries not included). …
Casting Lead Using a Lost-PLA Process
Do you ever wish your 3D prints had x22 times more mass? Has the lack of toxicity in your 3D prints been a source of …
Testing Video Transmission with Various nRF24L01 modules
As eluded in the resource page about sending video wirelessly via a pair of nRF24L01 transceivers, I wanted to do some range & speed tests …
Using an OLED I2C Display with 433MHz RF Modules
While working with the 433MHz RF transmitter/receiver pair, I found an issue when trying to integrate a SH1106 OLED display module into the system. This …
Reva G-Wiz: A New Project
I've always wanted to build my own car: the idea of driving something unique as well as having total control of the specification appeals to …
ESP32CAM – Digital Panning using a Joystick and ST7789 Display.
As with most ideas, this one came at the inconvenient time of 11:13pm – so I sent a Whatsapp message to myself to remind me …
An Exercise in Futility: Edge detection on a ST7920 128×64 LCD display
Ever since doing the successful real-time edge detection experiment using the GC9A01 display, I couldn't help but wonder what it would be like on the …
Real Time Edge Detection using ESP32-CAM
This project builds on the experience gained during the previous motion tracking ESP32-CAM project, and is simply just a proof-of-concept to see if the ESP32 …
ESP32-CAM Realtime Motion Tracking: First Tests
After finding myself with a little extra time over the festive period, I decided to go back over the ESP32-CAM homebrew computer vision project after …
Comparing the Garmin LiDAR-Lite V3HP with the Benewake TF-Luna LiDAR sensor.
I've previously tested beam divergence of the Benewake TF-Luna as part of the VL6180X distance sensor write-up, which also includes results from the Sharp IR …
Testing the PWM and Braking functions of the DRV8871 driver and 775 DC motor with an AS5600 sensor.
Curiosity is a strong driving force; especially, when there is a note on the datasheet regarding braking and PWM control. You can see the note …
Exporting Greyscale Image Data from an ESP32-CAM to Excel via Serial, while Displaying on a GC9A01 TFT Screen.
This is a post about how to export image data from an ESP32-CAM via serial, and how to them import it in to Microsoft Excel
Running Camera & Display on Core 0 of the ESP32-CAM
This uses the same setup as the original experiment which achieved 32FPS by splitting the duty across the two CPU cores. However, as this only …
PCB Manufacture with LASER diode
Currently, all of the electronics in my projects are made using copper strip board (vero board). This is great for through-hole components, and larger SMD …
Rendering 3D Graphics Using an Arduino Nano.
This started as the result of misreading the title of a Reddit post by u/Trotztd and lead to rendering 3D graphics on an Arduino. The …
Using SMD Resistors on Vero/Strip Board
When prototyping, my preferred protoboard is Verobaord/Stripboard as it has handy 2mm wide copper busses set at a 2.54mm (0.1inch) pitch. As a result, there …
Printing TPU Filament with a Stock* Ender 3 & Bowden Tube
Sometimes the best way to learn a new thing is to use it in a new project. This little project was a short and successful …
More Microwave Madness
Work begets work. For example; if you send an email, you'll likely get a reply which needs actioning. Or, if you finish your work early …
New Addition: Photon Mono SE
After much deliberating, I've taken the plunge and invested in an SLA resin printer. Sourced a second-hand Anycubic Photon Mono SE printer, complete with the …
Three More Side Quests
Instead of concentrating on the proper projects, I've devoted my time to literature, recycling and wood working as detailed below. Taking procrastination to a new …