All posts in the 'MCS-51 projects' Category
Posted on 13 Feb 2008
This is a Data Acquisition & Logging System Using AT89c51.It is actually a temperature logging System. Here 8 temperature sensors are connected(4 shown in diagram for simplicity). values of all the sensors are sent serially by AT89C51 to pc. Software “DAQ System ” takes these values and show them on its front panel, and also logs them to the data base “daq.mdb” .we can set some parameters like set point , low limit ,and high limit . when temperature of some sensor increases beyond set point ,the heater connected to controller (specific for that sensor) will be turned OFF( ON in opposite case ).High limit and low limits are for alarm. when temperature goes above high limit or below low limit the alarm will be turned on.[more]
Posted on 13 Feb 2008
If you want to know your digital IC fail or good this project can help you.this is an Integrated Circuit tester (IC tester) is used to test Integrated Circuits (ICs). We can easily test any digital IC using this kind of an IC tester. For testing an IC, we need to use different hardware circuits for different ICs; like we need a particular kind of tester for testing a logic gate and another for testing flip flops or shift registers which involves more complication and time involved will also be more.This project use 8951 microcontroller.[more]
Posted on 13 Feb 2008
This is a simply and easy build 4-channel timer, suitable for energy saving, simple hardware and nice firmware with c coding. Automatic power down mode, simple settings, optional buzzer for sound alarm.This project use ATMEL AT89C4051 and MAX7219 as the main parts.[more]
Posted on 21 Jan 2008
This device is built on an AT89S52 (or AT89C52) micro controller, an alpha-numeric LCD module and and a proximity sensor to detect the rotation of the shaft whose speed is being measured.
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