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 […]
Articles by hjw5774
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 […]