embedded systems to learn and create
Deid will show us how to use GPIO (General Purpose Input Ouput) pins on the Quadra
9:30-10a Cocktails & Conversation
10a Presentation
We will be holding a Hybrid meeting (in-person & Jitsi).
In Person – Small Boardroom @ Quality Foods, 27 Helmcken Rd #110 · View Royal
Online – https://meet.vinnythegeek.ca/vicpimakers
Deid’s presentation is here: http://deid.ca/pi/quadraGpio/
T’is the season for bright lights and Raspberry Pi fun.
In this talk we’ll look at a ModMyPi Programmable Christmas Tree (MMP-1021), which sits atop the 40 pin header and presents a set of individually controlled LEDs. The trick to practical and easy use of the tree is via GPIOZERO, a fantastic python module. We’ll integrate some sensors as well, since GPIOZERO makes them very easy.
9:30-10a Cocktails & Conversation
10a Presentation
Small Boardroom @ Quality Foods, 27 Helmcken Rd #110 · View Royal
Move over Micropython, Deid has BASIC running on a Pi Pico, and he is going to show us how he did it.
We will be holding a Hybrid meeting (in-person & Jitsi).
Quality Foods View Royal
27 Helmcken Rd #110 · Victoria, BC
https://meet.vinnythegeek.ca/vicpimakers
Deid’s presentation notes are here: http://deid.ca/pi/piPicoBasic/
George will share his old man savers. Consumer kitchen appliances are designed for one size fits all, not for my personal needs. My needs change as I age, and I need alerts for faults.
George’s presentation is here: https://docs.google.com/presentation/d/107pIcvgMJfG5TxZLBdD5MD1n3QWQPcR2-Dehy2xVzjI/edit?usp=sharing
His code .pdf file is here:
9:30-10a Cocktails & Conversation
10a Presentation
QCollege has welcomed us back to meet in-person. We thank them for their support.
We will be holding a Hybrid meeting (in-person & Jitsi).
Dave will share his work in running Marine Navigation on a Pi including:
9:30-10a Cocktails & Conversation (virtual)
10a Presentation
QCollege has welcomed us back to meet in-person. We thank them for their support.
Virtual…
Show and Tell of how you are controlling the world (or at least your part of it) with an AC Power Control project. All are invited to share in this meeting.
QCollege, Suite 303 771 Vernon Ave · Victoria, BC, has welcomed us back to meet in-person. We thank them for their support.
We will be holding a Hybrid meeting (in-person & Jitsi). https://meet.vinneythegeek.ca/vicpimakers
Deid’s link: http://deid.ca/pi/power
George will cover the parts that were donated by Chris Beech’s estate, and are available for projects.
9:30-10a Cocktails & Conversation (virtual)
10a Presentation
George will cover the parts that were donated by Chris Beech’s estate, and are available for projects.
9:30-10a Cocktails & Conversation (virtual)
10a Presentation
9:30-10a Cocktails & Conversation (virtual)
10a Presentation
Jim will cover the details of Infra-Red Communications, including basic components (emitter & receiver), data encoding methods, external components & software, how to generate pulses, and how to receive pulses on the Pi Pico.
Jim Briante presenting
9:30-10a Cocktails & Conversation (virtual)
10a Presentation
Jim’s Presentation Notes are here.
IrDA Infrared communication
Infrared Emitting Diode
• Angle of half intensity: ϕ,
• Relative radian power vs wave length
Infrared Receiver
• Series for remote control
• Automatic gain control (AGC)
• Data format compatibility
Data Encoding Methods
• Pulse distance encoding, Pulse width encoding, Manchester bi-phase encoding
Basic IR System –IR emitter/receiver
• External components/software
• Generating Pulses
• With PSoC PWM interrupts
• Raspberry Pi Pico State Machine
• Receiving Pulse
• Raspberry Pi Pico using interrupts
Single Pulse Application Example
IR Receiver for Continuous Data Communication
• What works for RS-232 data transmission and why?
Project Utilising IR emitters/Receivers using RS-232 Communication
Reference
Intro to Pi & Others Discussion. We will review the course materials, and discuss improvements, and getting the word out.
Intro to Pi & Others is a four part series with each session building on the previous sessions, where Pi basics of software and hardware will be explored.
9:30 AM to 11:30 AM PDT
9:30 AM to 11:30 AM PST
Don will share with us some cool hardware additions to automate your Pi.
9:30-10a Cocktails & Conversation
10a Presentations
Presentation material is here.
Jitsi Virtual Meeting
https://meet.vinnythegeek.ca/vicpimakers
Please contact markg@vicpimakers.ca if you are having trouble connecting to the meeting server.
9:30 AM to 11:30 AM PST
Jim will share with us his secrets in Prototyping projects, from concept to breadboarding, prototyping and printed circuit
board.
The discussion will touch on hardware/software tools used in each of the phases with focus on methods of prototyping and assembly.
See the presentation .pdf here.
9:30-10a Cocktails & Conversation
10a Presentations
Jitsi Virtual Meeting
https://meet.vinnythegeek.ca/vicpimakers
Please contact markg@vicpimakers.ca if you are having trouble connecting to the meeting server.
9:30 AM to 11:30 AM PST
Lynn will share with us the many Display options available for embedded systems.
9:30-10a Cocktails & Conversation
10a Presentations
Jitsi Virtual Meeting
https://meet.vinnythegeek.ca/vicpimakers
Please contact markg@vicpimakers.ca if you are having trouble connecting to the meeting server.
Get Lynn’s presentation here.
Deid and others will share what sensors they have been using to sense the real world and report it to the computer world.
9:30 AM to 11:30 AM PST
Jitsi Virtual Meeting
https://meet.vinnythegeek.ca/vicpimakers
Please contact markg@vicpimakers.ca if you are having trouble connecting to the meeting server.
Click to page 2 for presentation links and images.
Now that you have the world’s most useful project, it is time to package it up so the world doesn’t break it. We’ll discuss using different packaging containers to protect your project.
9:30 AM to 11:30 AM PST
Jitsi Virtual Meeting
https://meet.vinnythegeek.ca/vicpimakers
Please contact markg@vicpimakers.ca if you are having trouble connecting to the meeting server.
George’s packaging presentation: https://docs.google.com/document/d/1ivUou7D7rNFYmZPl1GAi4F6A5dP52ewsqoxxl0eUt5c
Deid’s packaging presentation: http://drsol.com/~deid/pi/packaging/
Deid will give the Introduction to Pi presentation he gave to the OPCUG (Ottawa PC Users Group) last fall. It will be chock full of ideas for that Pi you have just laying around, or stuff in a drawer.
See presentation here: http://drsol.com/~deid/pi/piIntro/index.html
This will be a virtual Jitsi meeting.
https://meet.vinnythegeek.ca/vicpimakers
Electronics doesn’t have to be all tiny surface mount components that you can barely see. George will tell us about how to do electronics using bolt cutters this month.
This will be a virtual Jitsi meeting.
https://meet.vinnythegeek.ca/vicpimakers
9:30-10a Cocktails & Conversation
10a Presentation
The ESP32 can do Video! Learn more about how to use the ESP32 Camera.
Presentation Notes here: http://drsol.com/~deid/pi/esp32cam/index.html
And Jim’s Challenge #3.
This will be a virtual meeting on Jitsi.
Due to the current situation @ March 14, 2020, in-person meetings have been suspended until further notice. Please do join us on Slack or at our online learning sessions using Jitsi. Write to hello at vicpimakers.ca for invitations and information.
Q-CollegeSuite 303 771 Vernon Ave · Victoria, BC – 10am
It is fun to repurpose battery powered consumer products. For instance, here is a Leak Detector made from a window alarm. The article includes the window alarm schematic.
And George made a bike theft deterrent alarm with remote radio alerting from the same window alarm.
In normal operation, the window alarm senses separation from its external magnet via its internal reed switch and feeds its piezo disk with an oscillation. The window alarm runs on 3 button cells and draws no current when the reed switch is open. There is also a slide switch to enable/disable the alarm.
Here is a photo of the circuit board: The OUT signal from the 8 pin oscillator chip is a 10V DC wave, pumped up by the inductor from 5 volts. A voltage divider can be added to lower this chip output signal to less than 5v to feed another device.
Or the piezo can be used as a microphone, providing about 100mv into a very high impedance input
In May we can show what we achieved.
Deid successfully connected a 50 light string of addressable LEDs to an ESP8266 to cause the lights to light and change colour and move and …
Deid created the following patterns:
The ESP8266 C code to do this can be found here. Deid makes no representation that the existing code is good. In fact he knows some of it is not. Feel free to fix.
The challenge is to add more patterns and the code to implement the patterns. If you send Deid the code he will load and try the code. Unless someone comes up with a better way for folks to test remotely.
Using Nexus DR-S hat on your Pi to control your Amateur Radio. Nexus DR-X (aka: DigiLink) is a digital radio cross patch that allows you to link the Raspberry Pi sound card of your choice to nearly any amateur radio transceiver to enable perfect digital data communications.
The Buster RPI image includes a host of Ham apps and a simple dialog box that makes updating and installing your favorite programs easy. Deid’s presentation notes are here.
10:00 AM – 12:00PM
Q College Suite 303 771 Vernon Ave · Victoria, BC
A Raspberry Pi Shake and Boom is just one way to watch the earth move under your feet. See how Cody and Eileen found the Rpi Shake and Boom and more.
10:00am
Q-College,
Suite 303 – 771 Vernon Ave, Victoria
10:00 AM to 12:00 PM
Learn how to measure the electrical world using your embedded device. In this talk, we’ll answer the following, and show you lots of cool stuff:
Camosun College Interurban Campus
4461 Interurban Road · Victoria, BC
Tech Bldg, Tech 177