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Kyle Boyington
465 followers -
Geek and Photographer
Geek and Photographer

465 followers
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Blynk Help (If anyone uses it)

This is a long shot but you people have been right before:

I live in the USA, but have a server in Paris. I can access the API from USA easily using curl, but when I try from Paris it returns “Invalid Token”. I have tried to access the API using just the IP, which seemed to work for a while, but now does not.

This: 'curl http://blynk-cloud.com/{api_key}/get/V2' works from USA but not from Paris.

Any ideas?

I am having a problem that should be super simple, I am sure I am missing something!

Is there an easy way to have a led move in a circle around a WS2812 ring? I wanted it to look something like half of the ring was dark and a 'streak' was making a continuous circle around the ring, with a fading tail.

Is this going to be hard to pull off?

I am having a problem that should be super simple, I am sure I am missing something!

Is there an easy way to have a led move in a circle around a WS2812 ring? I wanted it to look something like half of the ring was dark and a 'streak' was making a continuous circle around the ring, with a fading tail.

Is this going to be hard to pull off?

OK KITAs, you are my go to place to ask these kinds of questions! Here is my idea!

I want to make a small (hand-held) strobe light. I will controll it with a Arduino, and power it with batteries. But I was wondering if there is a solution not using LEDs? Like Xeon bulbs? I'm not sure I can get the 'flash' I want from an LED and batteries. And not sure how to power a flash bulb like that!

Any ideas? Am I under valuing the LED route?

I have a Raspberry Pi driving a SainSmart 12v relay. Whenever I power the relay with a load on it, and then turn off the power, the RPi crashes. I am using a 12v 100w power supply for the relay.

Should there be a diode somewhere on the relay, to prevent power back to the RPi? I thought that the SainSmart relay would prevent that from happening?

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I Made A Nightlight!

With inspiration from Know How I made my son a nightlight from scratch! I built everything: the wooden box, the acrylic top, and am using a raspberry pi as the brains! The light changes from white, to red, to green, to blue, to random with the press of the button. Then it stays on for 20 minutes then slowly fades to off! You can also text it to turn it on and off (IFTTT)!

My son has really enjoyed it and it has run great so far! The code is ugly, as well as the led wiring, but it works!

If anyone wants anymore details, please let me know! Thanks to +Fr. Robert Ballecer, SJ and +Bryan Burnett for the great show!
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1/26/16
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Python Programmers Question

tl;dr: Make a program respond to a button press, even when it is sleeping (time.sleep(400)). 

Im building a little night light for my son. I am using a Raspberry Pi, and a led strip. I have come to the point where everything is working to get the lights working. The lights come on when you press the button, and cycle through the colors. 

Here is where Im stuck: I want the lights to be on for 20 minutes, then slowly fade out over a few minutes.But while the program is waiting for 20 minutes, it is unresponsive to the button presses. This makes sense as it is in a loop. How can I fix this

I have been using the threaded callback from a tutorial I found, but doesn't seem to work when sleeping.

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OK, where are the electronic gurus?
I am hoping to find a way to control a high power LED with my Raspberry Pi. I have successfully controlled a  RGB light strip with pi-blaster, but not sure how different an LED like this would be.

Anyone have any experience with this? Can I use it just like a LED strip?
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My father in law is a farmer and wants to check his irrigator status from a mile or so away. I am looking at different ways to do that. Does anyone know of a cost effective, reliable way to transmit data over a mile away? Maybe not wifi, but some RF that could eventually be fed into a computer and parsed? 
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+Fr. Robert Ballecer, SJ  Is there any back channel discussion about the alpha and beta projects you showed on the last episode?  Like the handheld gimbal? Id love to see what you have so far in more detail! 
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