Monitor and log water quality (pH & ORP) and temperature from everywhere. Instead of performing regular checks with tester kits to maintain adequate pH and chloride levels in our (small) swimming pool, I decided to build a project that monitors the water continuously and...

Earlier this month, the multifunctional autonomous mobile robots "AMY A1" and "AMY M1" had been launched as the first batch of products of AMY Robotics. Amy Robotics is an innovative technology company focusing on research and development of service robots that enhance quality of life...

electrobob @ electrobob.com tipped us with his latest teardown of a battery powered Bosch glue pen. He writes: On the right side we can see the fuse and a IRF3711Z 6mΩ 20V HEXFET driving the heating element. At the glue melting end there is no temperature sensor, they are probably...

Pastilda is an open-source hardware password manager, designed to manage your credentials in a handy and secure way. Pastilda works as a middleman between your computer and keyboard. It provides easy and safe auto-login to your OS, bank accounts, mailboxes, corporate network or...

Alek Kaknevicius @ ti.com discuss about load switches and the advantages of intergrated switches over discrete ones. The most common approach to load switching solutions is to use a Power MOSFET surrounded by discrete resistors and capacitors; however, in most cases using a fully...

Our friends on educ8s.tv uploaded a new Arduino tutorial. Let's check it out. Dear friends welcome to another Arduino Tutorial! Today we are going to take a first look at this very promising new shield for Arduino, the Arduino Easy Module Shield! Also we are going to build a couple...

Due to the advances of technology, we are able now to produce water out of thin air without using the resources usually applied like mains utilities. Such approach would be perfect in places that lack natural resources like deserts. Working from the effects of direct solar radiation, a...

vlk @ hackaday.io build a very nice soldering pen with a OLED display. I found some projects where is used Weller soldering tips designed for WMRP soldering iron with standard 3.5mm jack and inside the tip is also thermocouple for sensing temperature. These tips are not so cheap but...