embedded systems to learn and create
Members
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
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.
Jim will review the answers to the Challenge (1 and more). Did you get the answers right? Find out on Saturday. Find Jim’s Challenges here.
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.
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/
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 Presentations
Jitsi connection:
https://meet.vinnythegeek.ca/vicpimakers
See the Projects presented here.
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.
