Category Archives: Arduino

Kits For Sale

Posted on October 4, 2017 by larry

Soon. I need to start off simple, but I have a feeling things going to move fast and I need infrastructure. Where to sell, (offerup, craigslist) How to take payments How to market My supplies. I think tomorrow I will … Continue reading →

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433Mhz Gateway BOM

Posted on October 3, 2017 by larry

Here is the bill of materials for the 433Mhz Wemos Gateway, prices are from ebay US Sellers. Wemos D1 Mini           7.85 400 Tie point (half) breadboard           5.09 433Mhz Receiver           5.15 2n7000 mosfet           0.15 2x 10k Ohm … Continue reading →

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I thought it was me

Posted on September 15, 2017 by larry

I was trying to get the 433Mhz receiver to work with the ESP8266. Apparently, the issue is that there is a strict timing issue and stuff needs to come from RAM. Here is the article https://github.com/sui77/rc-switch/issues/46 So it is not … Continue reading →

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433Mhz ESP8266 Gateway

Posted on September 14, 2017 by larry

Finally decided to try and mess with an ESP8266 gateway for the 433Mhz network. This is the first iteration. The transistor you see is a 2N7000 mosfet that acts as a 5v to 3.3V TTL level shifter. Unfortunately it still … Continue reading →

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Bubble Run Tomorrow

Posted on July 21, 2017 by larry

Took a break today, going to run the bubble run tomorrow. But my foot is acting up again, so I will not be running quickly. Hope I will be OK. I did get couple devices up and running for a … Continue reading →

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Trying New Radio for 433Mhz

Posted on June 12, 2017 by larry

I am changing the radio type I am using to one of these Supposed to be better, it is called a RXB6 433Mhz Superheterodyne Wireless Receiver Module I have it on an UNO for now, how it gets better signal … Continue reading →

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Next Gen Messaging System

Posted on June 3, 2017 by larry

I got the next messaging system up and going. I am not sure on the BOM but I think each unit will come under $20 Probably the most expensive part is the Wemos D1 mini at $5.00 The 16×2 LCD … Continue reading →

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Cheap 12v to 5v DC Converter

Posted on May 16, 2017 by larry

I found these 5V chargers at Dollar Tree to work for me when powering an Wemos ESP82166.  Pretty easy to find and cheap.  Start with the USB part and remove that one screw.  Should be come apart pretty easily.  On … Continue reading →

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Arduino and 433Mhz

Posted on May 11, 2017 by larry

I got the arduino receiving 433Mhz radio. It is cool because there are a lot of devices that I can tap in to that support 433Mhz. I am going to try and get a PIR to signal the arduino. Still … Continue reading →

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ESP-01 and IR

Posted on May 9, 2017 by larry

I don’t know why but it seems like the ESP-01 is really unreliable.  I am trying to build an ESP-01 that can send IR signals. It works sometimes but not others.  I see it on the network. Also seems like … Continue reading →

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