Month: October 2016

Arduino open house notes + hands-on class info

Posted on Updated on

We had a great group show up for the Wed Oct 12 Arduino: What’s It All About? open house. Big thanks to members Jack, Richard, Pek, Ross and Paul for bringing in and sharing their creations, and as always, to Jay for loaning his light sabres.

We’re caving to popular demand and finally scheduling an Arduino hands-on class. It will be taught by ylab member and robotics guru Paul. Registration is open on Eventbrite, and seats are limited. You have the option of bringing your own board, or we’ll provide one.

We had some excellent feedback and comments from last night’s talk.

If you’re interested in using LED strips: check out this interesting tutorial on  YouTube. This applies to the APA102-type LED strips. It’s different for APA104.

LED and  powertail in parallel: our presenter mentioned that when linking the 120V powertail and LED in parallel, there wasn’t enough current to run both. Comment 1: this wasn’t required. It was out of laziness. There are lots of other outputs on the Arduino board. Comment 2: Paul advised that it’s probably not a current issue. The D in LED is for diode, and the diode typically limits the voltage across its terminals to something under 2 volts. This is not enough to trigger the powertail’s relay. We’re breaking out the voltmeter to test that.

Pull-up resistor for switch control: check out this excellent video explaining why you need a pull-up or pull-down resistor when using a push-button switch on Arduino digital pins.


Don’t forget to register for our next open house – the great 3D Printing vs Laser Cutting debate on Wed Oct 26.

Comments? Feedback? Post it on facebook.

 

 

 

 

 

What’s this Arduino Stuff About? Wed Oct 12 7:30 PM @DDO

Posted on Updated on

This Wednesday’s the first official, new-format Open House night. They’re now now every 2nd and 4th Wednesday of the month, and feature a presentation – this week on Arduino!

Arduino night. Big thanks to Chhing Chan for the poster.
Arduino night. Big thanks to Chhing Chhan for the poster.

We had a trial run of the new format by making the first night of our 8-week ham radio license program free for anyone who wanted to attend the session. That filled up nicely.

For this Wednesday’s event, we have a bunch of demos cued up, including robotics, LED control, handling 120V power, and if we get it running in time, Bluetooth control. We’ll be announcing a hands-on Arduino class and lots more sessions.

It’s free, but we still need you to register.