DS1820 simulator

This project was awarded to vikramkadiaan for $155 USD.

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Project Description

I need a DS 1820 firmware simulator.
firmware had used the 18F252 microcontroller, and will have four keys and an LCD display 16x2 working mode 4-bit bus ( +, -, enter, tab) to program a temperature value to be simulate.
The output will simulate the one wire protocol (as slave), simulate the DS1820 response.

The LCD text will show: Temp: [url removed, login to view], where:
A: Temperature signal: (+ or -)
B: Hundred temperature digit: (0 to 1)
C: Decimal digit: (0 to 9)
D: unit digit: (0 to 9)
E: First position after the point: (0 to 9)
F: Second position after the point (0 or 5)
The Tab button will navigate between the digits, and the keys + and - will increment / decrement the value, as stipulated above.
The Enter key will update the record to the new value.

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