Category Archives: Arduino

Don’t hard code WiFi Credentials with ESP8266, use WiFiManager

Nice tutorial for how to use WiFiManager to dynamically set wifi credentials for your ESP8266.  Of course I am a bit worried how “secure” this is. http://www.instructables.com/id/Avoid-Hard-Coding-WiFi-Credentials-on-Your-ESP8266/?ALLSTEPS

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Convert a cheap digital rain monitor into a high end one

The author took a cheap rain measurer and modified it so an arduino could read the data and send it to a controller.  Of course I don’t think I would be lucky enough to find one of these for 43 … Continue reading

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Simple tachometer with an arduino

Tachometers measure the speed of a revolving object.  This is a pretty simple design with IR http://www.instructables.com/id/Ho-to-Make-Arduino-Based-Digital-Tachometer-Simple/?ALLSTEPS

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Make a simple WiFi Jammer with ESP8266

I could see these being built with a battery and tossed into a site. http://www.instructables.com/id/WiFi-Jammer-Using-ESP8266/?ALLSTEPS

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Simple small weather station with ESP8266

Oh and cheap too…But not as cheap as an RPi Zero.  Lately I have been thinking more and more about switching completely over from arduino to just RPis.  The price point is pretty close and for what you get from … Continue reading

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Two arduino based drawing robots

Two nice builds for robots that can draw. http://www.instructables.com/id/Drawing-Car-Arduino/ http://www.instructables.com/id/Arduino-Drawbot-20/?ALLSTEPS

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Arduino Controlled PWM fans to cool a PC rack

Actually I was looking at this build for some other cooling needs myself.  Not so much a computer rack.  I have lots of “fans” around from PC’s I have stripped over the years from the side of the road.  Always … Continue reading

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Convert a GRBL with arduino CNC v3 Shield to use a servo for the Z axis

So you built one of the CDROM CNC’s and have a CNCv3 shield instead of a cobbled together setup.  The author goes over how to tweak it so you can use a servo in the z axis over a stepper. … Continue reading

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Wow this is a fancy skittle sorter

This is a pretty fancy looknig sorter, impressive too (fast as well).  Uses 2 atiny’s to control it.  Would I build one…no way too much work involved in this build.  Still a nice build overall. M&Ms and Skittles Sorting Machine … Continue reading

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Using arduinos to modify Amazon Dash

Nice article that has lots of pointers for how to get started with modifying amazon dash buttons. Dash With Arduino https://hackaday.io/project/19351-amazon-dash-button-for-arduino https://github.com/andium/AmazonDRS Nice reverse engineering video here 33C3: Hunz Deconstructs the Amazon Dash Button

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