aflatoon1989
New Member
hi ...my friend give me a task to install a an alarm circuit in his little industry.....he gave me instructions that a circuit should alarm after every 30 minutes,and it must only stops when any worker press the button,and when button is pressed the timer must restart ...every time a button is pressed. ckt should acknowledge the computer (data logging) the time button is pressed..
so i thought to use at89c2051 for this purpose i have made the ckt prototype....but still some problems are there, i have to design a driver ckt to on the alarm.and i dont know how to do data logging on pc...i saw ic ENC28J60 ethernetcontroller...but dont know how to program and wht its range to carry data signal....im not using serial communication bcoz it has distance limit too short......can anyone help me in programming this micro controller and ethernet controller...
so i thought to use at89c2051 for this purpose i have made the ckt prototype....but still some problems are there, i have to design a driver ckt to on the alarm.and i dont know how to do data logging on pc...i saw ic ENC28J60 ethernetcontroller...but dont know how to program and wht its range to carry data signal....im not using serial communication bcoz it has distance limit too short......can anyone help me in programming this micro controller and ethernet controller...