The CellularPhone is communication device which very important for people. It so happens facilities is given by CellularPhone is not only function astelephone, but more facilities others given. One of them is SMS (Short Message Service), with this facilities we can send a short message from CellularPhone to others CellularPhone. The price is cheap and time deliver fast, so his facilities can…
At this modern period, especially in technology make everything simple for used because of that, editor have idea for design and make key code with DTMF. This tool is designed by various modul and main component as condensor mic, IC MT8888, AT89C51, motor driver, stepper motor an other support component. The function of condensor mic as input DTMF code from push the bottom keypad in handph…
Mankind depend on uncenewablenatural resources for energy, the nature supplies are greatly reduced especially the supply of gas and oil. To solve this problem, mankind turned to technology to find a solution. One solution has been the use of windmills, as a source of alternative energy, by using the wind strength combined with a mechanical working system, which is able to supply energy to an el…
The advance of technology, particulary electronics, has grown extremelly fast, which can be seen from the increasing numbers of costumer or user and the innovation of technology never stops. So, the demand of mobilization technology raised up. There are many systems of learning which can be applied in society and student. There are face to face, learning system between student and teacher, ind…
In this feature, the growth of technology was so fast, when we doing a job, we needed a voice playback device which can be an information that has been schedule. In this case we used the device in a factory. The aplication of this voice playback has been used by people, such as door bell,ect, we could no select the specified the track of recording in design of this device, the writer want’s t…
The application of recording and voice playback have already by people nowadays. Some people use the specified voices integrated circuit, otherwise there is a lack such as: we could not select the specified trackof the recording. In this research, the EEPROM had filled with sound file like *.wav file. To playback the voice recorded in the EEPROM, we used microcontroller and R-2R DAC ( Digital…
All this time, Air Conditioning temperature has been changed by pushing remote control as what temperature needed. If room temperature has been changed, Air Conditioning temperature that comes out has also to be changed till the temperature is suitable with room condition. Since the mechanism is complicated, it needs to make program controlling temperature that is come out from Air Conditioning…
Development of knowledge in science and technology therefore something will be faster, easier and accurate. Like as project to note down the time. So that we can know the time when visitor arrived. This appliance consisted by RTC ( Real time clock ) as to note down the time. If visitor push the button Mikronkontroller taking time from RTC , then time will be saved in Eeprom and data about …
The progress in technology particularly in the field of electronics has now been bringing any changes and advances for human live.the construction of this tool was to make operators easier and alleviate them in controlling automated scheduled school bell, such that the student do not get difficulty in learning about the teory and technology of microcontroller, for thereby applying one of applie…