Need to identify a RFID card, and allow access to a controlled space? Maybe log the time and date when a user swipes their card? Now you can with an inexpensive (<$10) RFID solution. Just supply a Arduino, and maybe

We had a successful run with the $30 RPT-2D repeater cable using two Baofeng HT’s. One radio was set to talk on 446.000, the other was set to talk to our local repeater on 146.805. The cable links the mic/spk

We took the Neo-6M GPS module from a previous tutorial, added the LCD Rotary Encoder shield, and are displaying the GPS data (lon / lat, time / date, altitude, speed / heading) on the LCD. Turn the Rotary Encoder to

Lots of projects require a battery backed time and date display or stamp. In this project we took a SainSmart DS1307 RTC Module and connected it to a SainSmart UNO & LCD Shield. We are displaying the date and time

We took our LCD Keypad Shield, and added our Weather Shield that we used with the web server project. Now we have temperature, humidity, pressure, and more displaying on the LCD. Just press the buttons to see the various readings.    

I have a couple 13.56 mHz RFID modules coming for different projects I’m working on. One project is key-less entry for auto or home use, the other is for object tracking. A lot of fun for under $10. Let us