SMS Controlled Car Alarm Security System
It’s been awhile that I have last posted my projects here since I have helped my friends build their Senior Year Design Project. Now, it is finally done and I will be so happy to share it here. The project is all about a cellphone that will inform the user through Short Message Service (SMS) when an intruder triggered the alarm. Using the AT Commands the serial communication with the phone and the microcontroller was made possible.
The project comes into a case but temporarily removed for the presentation to the panel of judges since the case wont fit on the prototype.
There are two ways of sending and receiving SMS messages: by text mode and by PDU (protocol description unit) mode. The text mode (unavailable on this phone) is just an encoding of the bit stream represented by the PDU mode. The phone used was Sony Ericsson T68i and the only mode supported is PDU mode. It was a headache at first since I can only see hexadecimal figures but as time goes by I got used to it.
Self-balancing and Light Following Robot
Shake is a robot inspired from a Segway (You can google it if you haven’t heard it yet). He is a self-balancing and light following robot. Most of the balancing robots use Gyrometers or Accelerometers or even both for a very good accuracy but since I don’t have enough funds to have them I decided to use Light Dependent Resistors.
The concept of its action is the same with the line follower mobile robot. When the light is received by the LDR then it tells the robot that it is near to the floor. Two LDRs are used on its front and back. When the back LDR doesn’t receive any light then the robot will move forward. When the front LDR doesn’t receive any light then the robot will move backward. It is stable when both LDRs are receiving light.
- Heart-shaped LEDs
My third microcontroller hobby project was dedicated to Jesus’ birthday since he helped me on my previous projects. I love lights so I created this simple project of mine. It is composed of 34 LEDs soldered in a heart shape figure. It comes in over 25 unique patterns. I utilized MikroC PRO for PIC for programming in C language. In line C coding was used here.
Cruddy Line Follower Mobile Robot and my Serial PIC Programmer
This is my first Microcontroller Hobby Project. He is “Cruddy” my line follower mobile robot. I named him Cruddy because he’s quite a mess on his structure. It is my first time on building a robot so expect that my soldering skills are not yet that good. The chassis was from a remote controlled toy car. I removed its PCB and made a better PCB. Cruddy follows lines although quite slow to avoid exceeding the line. He moves backward when he exceeds the line. He is a revision from our first project “MVGAT”, an obstacle and cliff avoider mobile robot. Although MVGAT didn’t functioned well because of sensor defects and power inaccurate design, his sensor board was changed and few design revised thus Cruddy was made in to success. The PIC Programming Language used here was PIC Assembly.