Category Archives: Arduino

IoT Motion Sensor

Posted on December 20, 2015 by larry

This mod was so amazingly simple.  A couple of weeks ago I saw this ad in some Harbor Freight flyer I got. Since I had a coupon I decided to try one out.  I am sure glad I did, now … Continue reading →

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Power Still In NodeMCU

Posted on December 16, 2015 by larry

I was hoping to use a mosfet to hold an nodemcu powered on, then when it is done what it is doing, it would shut itself off by bringing the collector down I am going to try this with an … Continue reading →

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Getting Web Page Going

Posted on December 12, 2015 by larry

I am revisiting my php programming skills. I started trying to access a MySQL server, having moderate success. First thing I will do is get it to read some config data, I got some data but not what I expected. … Continue reading →

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Soldered Cap on NRF radio

Posted on December 7, 2015 by larry

    After prematurely claiming victory, I am reluctant to say that this is the final fix, but it is pretty stable.     There seems to be 3 things needed fixing in order for me to reach this point, … Continue reading →

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Frustrating NRF24L01 radio

Posted on December 6, 2015 by larry

Not sure why I am having so much trouble with this NRF radio. I am going to try another one, maybe it is just a bad unit. The one connected to the raspberry pi is solid.  If I still keep … Continue reading →

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It was Power

Posted on December 5, 2015 by larry

So yesterday I struggled to get the NRF23L01 running, I finally figured it out, it was power. Seems like a lot of my issues have to do with power.  I think I am going to build myself a circuit that … Continue reading →

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Arduino Side of NRF

Posted on December 4, 2015 by larry

Last night after I posted in my blog, I finished the Arduino Side of my NRF2401 project. I tried to get the radio up first but am having trouble. I got the two buttons using a pulldown resistor, the IR … Continue reading →

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2000th Post

Posted on December 3, 2015 by larry

Cool, today marks my 2000th post on this blog.  That is amazing. I got the NRF24L01+ working on a Raspberry Pi 2.  Finally. I guess if I put my mind to it I could have had it done sooner. I … Continue reading →

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Moving on to NodeMCU

Posted on December 2, 2015 by larry

With the price of a NodeMCU hitting about $10, I think I am going to use that as my device of choice when doing wifi projects. I certainly will still use an Arduino, or an ESP8266, but the nodemcu is … Continue reading →

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Internet of Things XMas Devices

Posted on December 1, 2015 by larry

Here it is, hardware all done This year it is powered by two devices, a Raspberry Pi on a Red Board and an Arduino on a black board. The Raspberry Pi will drive these three message boards, a naughty and … Continue reading →

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