If you need to keep track of the location of some things like your car or your service workers you can sign up for a service that uses cell phones and GPS or you can use the APRS which stands for Automatic Packet Reporting System. Jim Whiteside demonstrates how he is using a Raspberry Pi to gather data, decode it and plot it on a map. Since the service
If you are looking for a new desk clock, look no further than this Arduino based RGB LED Hard Drive Clock. Via: Dangerous Prototypes “Used material: Arduino Uno, Tiny RTC modul, ULN 2003, IR diode and IR transistor (used like a sensor, more details in next steps) 4 pushbuttons (for controling the clock) TSOP4838 (allows us to control the clock with remote controler) Temperature sensor (DS18B20) RGB led
 If you are tired of waiting in a boring bus shack waiting for your bus I bet you wish the guys from Norwegian Creations pimped your bus shack! “The system consists of a Raspberry Pi running RetroPie and a (somewhat modified) Makey Makey. Because the controls needs to be available for the users they need to be somewhat environmentally sealed. Therefore, by using a Makey Makey and some aluminium tape,
If you are working on a project where you want to get rid of EMI from entering an input you might want to look into using some ferrite beads, they can help you out in removing high frequency noise from your circuit. The ferrite looks like a variable resistor that has no impact on your circuit at low infrequence and starts to conduct to short out higher frequencies. It
The Raspberry Pi is a very powerful heart of many cool projects including this Raspberry Pi Model Train Controller by MrNotbuyinit. The description of the electronics starts at around 2:35. The prototype interface from the Pi is a simple breadboard which looks to be ideal for quick and easy additions and modifications. The Pi is interfacing with a port expander to get more digital outputs out of the Pi.
Are you good at math? Not sure you will think that after you watch the TED Talk featuring Arthur Benjamin, the Mathemagician. “Dr. Arthur Benjamin is both a professor of mathematics and a magician. He has combined his two loves to create a dynamic presentation called “Mathemagics,” suitable for all audiences, where he demonstrates and explains his secrets for performing rapid mental calculations faster than a calculator.”
If you are looking to add some WiFi connectivity to your next project the HLK-RM04 Serial to WiFi Module might be just the thing if you want to go wireless. The $10 HLK-RM04Â module handles all of the WiFi overhead so your microcontroller project can simply send serial data to it using the TX and RX pins. RAYSHOBBY.NET has a great tutorial including code to get you started with
