Curious Inventor shows us how to make a small batch of SMD PCBs. The video demonstrates how to use a vacuum pencil to hand place SMD components onto a PCB that has been prepared with squeegeed on solder paste. The board is then reflowed in a toaster oven keeping an eye on the temperature profile of the solder paste and the components.
  If you like music and microcontroller check out this Arduino controlled DrummerBot that Steffest built. It uses an Arduino to control a bunch of bits and pieces of spare parts.  “The Arduino receives the string, unpacks it back to a pattern and simple loops over the steps controlling each servo. I’m specifically fond of the “Horns” They are 2 little fans with a servo pushing a piece of plastic
 Check out this cool Self-Balancing Robot Build that Kerry Wong shared with us. He has used some very inexpensive parts to get this thing built. To read through the build process have a look at part 1, part 2 and part 3 of the build. “I used a LPY450AL for the gyroscope and anMMA8453Q for the accelerometer. These two devices are rather inexpensive and the IMU can be
 If you are looking for a cool project have a look at this Open Source Hardware Sentry Gun Controller. The board you see above is a new version that has mainly surface mount parts to make the board much smaller than the older version which used lots of through hole components. The board has lots of I/O pins for added functionality. You can see a few of the main
 Check out this Spooky Animatronic Hand Carved Wooden Head that rosemarybeetle made. I am not sure I could have this on my side table because I would always be staring at the spooky face. The face carving is very well done, it looks like it should be a museum piece! “I did not work up detailed design drawings, having decided to let the final look of the head
Voltage measurement is something that is very handy. There will come a time when you need more than one meter to monitor the project that you are putting together. This DIY Digital Volt Meter Project will let you build your second Digital Volt Meter so you can monitor a voltage source while your hand held DMM is in use monitoring a different part of your circuit.
If you want the most accurate DIY clock possible have a look at this DIY Atomic Clock Synced LED Clock build. This clock is built to use the DCF77 which stands for D=Deutschland (Germany), C=long wave signal, F=Frankfurt, 77=frequency: 77.5 kHz. Via: LED Projects “The 77.5 kHz carrier signal is generated from local atomic clocks that are linked with the German master clocks in Braunschweig. With a relatively high power of 50
