Karol Lewandowski

Karol Lewandowski

Karol Lewandowski
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Early version of the Fold Trailer, showing the mechanism of the folding axel. The trailer is only 25 cm deep when stored vertically at a wall.

Homekit Philips HUE clone with standard non addressable RGB strip here is the first accessory for our HomeKit system using an ESP8266 for convenience i'm u

Homekit Philips HUE clone with standard non addressable RGB strip here is the first accessory for our HomeKit system using an ESP8266 for convenience i'm u

47 Raspberry Pi Projects to Inspire Your Next Build

Need a raspberry pi project to make at home? Check out these 47 raspberry pi projects that were entered into the Make: Raspberry Pie Design Contest.

Install OpenCV and Python on your Raspberry Pi

Want to use your Raspberry Pi Zero for computer vision? I'll show you how to install OpenCV 3 with Python bindings on your Raspberry Pi Zero.

Easy Arduino Menus for Rotary Encoders

Rotary encoders with centre-push buttons are cool input hardware for projects, especially if you want to be able to scroll through menus and select options.

Here we introduced one OV7670 camera module just purchased online, including the communication of camera module and Arduino UNO, the using ways to take photo via...

Here we introduced one camera module just purchased online, including the communication of camera module and Arduino UNO, the using ways to take photo via.

The more I get to play with hardware, the more I get to see how security is lacking or implemented poorly (and I'm being very polite here). This time, I would like to share my 315mhz/434mhz RF Snif...

RF Sniffer – open gates, cars, and RF remote controlled devices with ease.

Learn how to make a remotely viewable pan and tilt security camera with a Raspberry Pi. This project can be completed in a morning with only the simplest of parts. Here's the end result: https://youtu.be/1KjYMPFSKLo What you Need Raspberry Pi 2 or 3 with Micro SD card Arduino UNO or similar 2 x micro or…

Learn how to make remotely viewable pan and tilt security camera with a Raspberry Pi. This project can be completed in a morning with only the simplest of parts.