Copyright © 2010-2023 Ted Burke, All Rights Reserved.
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Recent Posts
- Set timezone to Europe/Dublin at command line in Debian Live
- Arduino Nano Timer 1 interrupt example for 100 Hz sampling
- Running Arduino IDE in a Debian Live session
- Installing VirtualBox on Debian 11
- More PRBS turtle graphics
- PRBS visualisation in the style of turtle graphics
- Using ffmpeg to take a snapshot with a webcam in Windows
- Using a serial byte sent from an Arduino to launch an application on the PC
- Generating variations on a code analysis question in a Brightspace quiz
- How to merge two Garmin .fit files and upload to Strava on Ubuntu
- Moving statue of David Foster Wallace
- TU Dubuntu 19.10 – a customised live USB version of Xubuntu Linux 19.10 for TU Dublin
- Using Canon EOS 70D DSLR as a USB web cam in Xubuntu Linux 19.04
- TU Dubuntu – a customised live USB version of Xubuntu Linux 19.04 for TU Dublin
- Using the PHP command line web server to transfer files between devices on a local network
- €5 PPG – photoplethysmogram amplifier / Arduino circuit
- Clap detector circuit / AirSpell typing system
- AirMouse – control mouse pointer in Linux using one switch or by blowing on microphone
- Some RGB fractal doodles
- How to display USB webcam as live video on desktop using mplayer
- Ronan Byrne’s ultra low-cost brain-computer interface
- H-bridge control example for Arduino Nano (ATmega328) – two phase-displaced square waves
- An offcut from the Fraktalismus pattern factory
- Cafe Terrace at Starry Night
- €2 Robots in DIT
- A brief introduction to binary numbers…
- Can the PIC12F675 drive motors directly from its GPIO pins?
- Minimum Viable Program for PIC12LF1572
- dsPIC30F Quadrature Encoder Interface (QEI) – Basic Example
- Simple example program for the PIC12F675 microcontroller
- A simple way to read and write audio and video files in C using FFmpeg (part 2: video)
- A simple way to read and write audio and video files in C using FFmpeg (part 1: audio)
- Fraktalismus Outtakes: Sea Monsters
- Fraktalismus – my presentation at Dublin Maker 2016
- Example code from presentation: Ways of Seeing Julia Sets
- C or Python? Comparison of execution time for Mandelbrot image generation
- Julia Set Explorer
- (no title)
- What I’m working on right now…
- Simple 2-channel hardware PWM example for the MSP430G2452 microcontroller
- RoboSlam @ Dublin Maker – only two days away!
- Generating antiphase PWM signals with the dsPIC30F4011
- Very simple Python / Tkinter GUI to send selected keystrokes via serial port
- Using a dsPIC30F4011 to generating 4 PWM signals with equal duty cycles but at 90 degree phase increments
- Faster Mandelbrot image generation using numpy in Python
- Fractal variations using Python
- Using SendInput to type unicode characters
- Three PWM outputs with three different frequencies using the dsPIC30F4011 microcontroller
- 8-channel PWM with the MSP430G2553
- Simple Phaser Framework example – Flappy Words
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Monthly Archives: April 2012
CommandCam now published under the GPL
The title pretty much says it all. Following some requests from users, my command line webcam image grabber, CommandCam, is now published under the GNU General Public License version 3. Is it just me or is software licensing very confusing?!
Posted in Uncategorized
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How a console application can set the size of its window
This is an example of a Win32 console application that sets the size of the window it’s running in. When you run it, it sets the size of the console window to 640 x 400 pixels. It actually seems to … Continue reading
Posted in Uncategorized
Tagged console, gcc, GetConsoleWindow, MinGW, move, MoveWindow, resize, Win32, window
2 Comments
Simulating a keystroke in Win32 (C or C++) using SendInput
This program is a simple example of using the Win32 SendInput function to generate a simulated keystroke. When you run this program, it simply waits 5 seconds and then simulates a press and release of the “A” key on the … Continue reading
Posted in Uncategorized
Tagged gcc, keybd_event, keystroke, MinGW, SendInput, simulating, Win32
83 Comments
Simple Timer 1 interrupt example for the dsPIC30F4011
This is a minimal example of a Timer 1 interrupt in a dsPIC30F4011 program. I compiled it with Microchip’s C30 compiler. The main loop of the program simply flashes an LED on RD0 (pin23) at approximately 2 Hz. Meanwhile, Timer 1 … Continue reading
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14 Comments
Stepper motion control from signals on SD card (co-author: Mark Flanagan)
Note: This post is co-authored by Mark Flanagan. Mark is blogging about his final-year project here and has also posted a really interesting account of his preliminary investigative work here. Mark’s project concerns the development of a fascinating robotic simulator … Continue reading
Posted in PIC, Uncategorized
Tagged C30, dsPIC, dsPIC30F4011, interrupt, playback robot, robotics, SD card, stepper, timer
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PWM output on 2 channels of the dsPIC30F4011 with equal duty cycle and 180 degrees out of phase
Reader Mo Hsen wrote in with an interesting query about generating PWM output from the dsPIC30F4011 on two channels with equal duty cycle but 180 degrees out of phase (see the waveforms below for an example). I’ve created a short … Continue reading
Posted in Uncategorized
Tagged C30, dsPIC, dsPIC30F4011, duty cycle, frequency, MPLAB, PDC1, period, phase, PIC, PICkit 2, PTPER, PWM, PWMCON1, _PTCKPS, _PTMOD
50 Comments
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