In today world, many things are changing in the leaps and boundaries speed, especially in the science and technology fields. There is always some new breakthrough every single day in the technology niche.

I’m sure many of you have heard about the wall climbing robots before, and you wish to know even further about it? Well, then you have to stick here and read about it.

The Waalbot wall climbing robot can perform numerous tasks, such as inspection, observation, repairing or as a communication relays in many fields.

The tiny and flexible size enables it to enter any narrow or dangerous areas, which it is impossible for human beings to do so. This tri-leg Waalbot uses its dry adhesion to stick and walking on the walls and ceilings without any problem.

A PIC microcontroller is used in each Waalbot to control and navigate the motion of the robot. In addition to the above feature, the wireless IR is responsible for the teleoperation.

This Waalbot design can be miniaturized and controlled easily whatever you like.

Although this Waalbot is not a high complexity robot, but the robot is very agile and fast in its movement.

You are bored for the normal water sprinkling system, and wishes a new change will spice up your watering routine?

Yep, you can wipe away the boredom by create a colorful sprinkler controller by your own.

Firstly, you must know what your own needs when you creating this controller which:

• It is simple and not too complicated to build
• Easy to navigate and control
• Easy to add or remove any features whenever you want
• It will support the extensive reporting
• It must electrically isolated
• Include the “In Place” flash upgradeable firmware

For this project, you can either choose to include control for an irrigation pump or not. The controller can be placed besides your sprinkler system wiring is, and its just only run a simple two or three wire control line from the automation controller to the sprinkler controller. Furthermore, choose the “send commands/requests” to the sprinkler controller without reports on your automation controller if you want to.

You can build this controller on a perfboard with wirewrap, and build as many valves as you want. You will take about an hour to set up the ten zones controller.

If you a die hard fan of Drums, I bet you must be excited about this unique and DIY eDrum too.

The required components for this project:

1. A PIC16F877 RISC microcontroller
2. Two line (16×2) LCD with backlight
3. Some amplifiers
4. Twenty-two analog inputs
5. Two digital inputs
6. Twenty-two input gain potentiometers
7. Four control buttons
8. One MIDI out
9. One serial RS-232 out

You need to remember the main goal for this project is to find and use the cheapest components, but can still be maintain results at the professional standard. By using the PIC microcontroller, the whole design becomes easier to expand and it’s also assembly language friendly as well.

Below is the list of eDrum special features:

• 24 unique velocity sensitive trigger inputs
• One Hi-Hat stereo input
• One Snare Dual-Piezo input
• Six Cymbal inputs with the choke
• Four Mono Piezo inputs
• Two modes HiHat pedal operation
• One MIDI output
• Four control buttons
• The RS232 serial port
• Assorted memory for snapshots
• Various controllable parameters

Since this project is mainly about the Trigger to MIDI conversion matter, therefore the eDrum will not offer any other drumkits or sounds on it.

Phone Dialer is the most common communication tool in an office (Can you imagine the mess and difficulty without this multipurpose tool?). An easy to access and fast connection DTMF Phone Dialer can be an excellent assistant in your office.

The reason why you must have a DTMF Phone Dialer:

• It has a big LCD screen with a fancy menus
• It equips with different modes
• PC connection for remote control of the phone
• E-mailing voice messages

The circuit that used in this phone dialer is NTE1690 DTMF dialer chip and a PIC 16F690 microcontroller.

Have you notice that the phone dialer box consist two RJ9 ports at the back. One is connected to handset’s port for the phone, while the other is to the headset itself. It is works efficiently both on IP-phones and standard phones.

This DTMF Phone dialer has the following features:

1. Storing phone number
2. Dialing the stored number
3. Copy the stored numbers from one portal to another
4. Dialing the phone number manually
5. Change the dial speed accordingly

I admitted, this DTMF phone dialer is a little bit ugly, but it definitely eases your communication matter.

Bored? Grab a PIC16F628, LM75 temperature sensor, one 3×7 segment LED indicator and solderless breadboard. And build a simple thermometer in few minutes.

PIC microcontroller reads temperature sensor LM75 via I2C interface and sends directly to 7 segment LED indicator. Program is written by using JAL but you can flash hex file without need to compile. Have fun.