Category Archives: Arduino

Simple Stepper Driver

Posted on March 29, 2017 by robertwilkie

Basically this is a nice write-up on a simple stepper driver with an arduino nano and a EasyDriver board. Easydrivers are a nice stepper motor controller, but….they are a bit pricy http://www.instructables.com/id/Simple-Low-Cost-and-Accurate-Stepper-Motor-Driver/?ALLSTEPS

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Make a simple WiFi Analyzer with ESP8266

Posted on March 28, 2017 by robertwilkie

I see more and more write ups lately with the ESP8266. This is a nice one that basically makes a portable “fing” with one. Figure this will run you 10-15 dollars in parts…not including the battery. Me…I’ll stick to my … Continue reading →

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

Posted on March 23, 2017 by robertwilkie

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

Posted on March 15, 2017 by robertwilkie

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

Posted on March 14, 2017 by robertwilkie

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

Posted on March 14, 2017 by robertwilkie

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

Posted in Arduino, Cheap, Security | 2 Comments

Simple small weather station with ESP8266

Posted on March 13, 2017 by robertwilkie

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

Posted on March 3, 2017 by robertwilkie

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

Posted on February 24, 2017 by robertwilkie

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 →

Posted in Arduino, Cheap | 3 Comments

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

Posted on February 8, 2017 by robertwilkie

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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