In this video I explore the HC-SR04 Ultrasonic Range Sensor. Connecting this to a Raspberry PI Pico. https://youtu.be/oz0pYO8sCds I look at two code strategies for working with the HC-SR04: using Interrupts to calculate the echo time and using PIO to do this. I got carried away a little with exploring these devices and decided to … Continue reading HC-SR04 Ultrasonic Range Sensor with Raspberry Pi Pico (C++ & PIO)
DDD: Costs of building a Raspberry Pi Pico and RPI4 ROS2 Robot
This video takes a look back at what the costs have been to date to build DDD. Of course, DDD is not finished and I have lots of fun planned with it.
DDD: ROS2 Twist – Driving Raspberry PI & Pico Robot from Dual Shock 4
In this video, I take DDD, my DIY Dev Droid, out for a drive. For the first time I have had the Robot off of the bench. I use a Dual Shock 4 as a controller to drive the Robot around like a remove control car.
DDD: Promoting Robot to ROS2 Ecosystem – Raspberry PI 4 & Pico
The time has come to promote DDD, my DIY Dev Droid, to be a ROS2 Robot.
DDD: PID Algorithm to manage motor speed on Raspberry PI Pico
In this video, I add the PID (Proportional Integral Derivative) algorithm to be able to manage the speed of the Robot.
DDD: Measuring Robot Motor Speed using Rotary Encoders
A video on DDD, my DIY Dev Droid. Measuring the motor speed using a Raspberry Pi Pico and Rotary Encoders.
DDD: Robot Motor Throttle Control
A video on DDD, my DIY Dev Droid. Implementing a throttle control for the motors using a Raspberry Pi Pico.
Video Turntable Mk2: Raspberry Pi Pico, MicrROS, ROS2 and FreeRTOS
This video extends my Video Turntable project by making this a ROS2 Robot.
Introducing DDD: DIY Dev Droid
THis is the first in a sequence of videos on DDD: my DIY Dev Droid. This video introduces the platform and principles.
Celebrating Brighton Pride with Raspberry PI Pico Rainbow
In recognition of Brighton Pride (Sat 5-Aug 2023) this video looks at producing a rainbow on a WS2812B LED strip.










