- Category:
- SCM
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[ASM]
[源码]
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- 3.97mb
- Update:
- 2015-05-03
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- Uploaded by:
- 李生
Description: Darkroom Timer
April 99 Stan Ockers (ockers@anl.gov)
Modified by Vassilis Papanikolaou, April 05
Counts down 0-99 min and 0-59 sec giving an alarm at 0
initial counts are held in data EEPROM setable with one button
RBO-RB3 to bases of transistors connect to common cathode of displays.
RA0-RA3 to 1,2,4,8 BCD inputs of CD4511 7 segment latch and driver.
RB7 to start pushbutton used to start countdown and silence alarm.
RB6 goes to time set pushbutton use to sucessively set the digits.
RA4 with pull-up resistor goes to PB to 15 starting counts
RB4 goes to Dot Points
RB5 goes to Relay
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File list (Check if you may need any files):
DarkroomTimer PCB.pdf
DarkroomTimer Schematic.pdf
DarkroomTimer Silk.pdf
DarkroomTimer.doc
DarkRoomTimer.asm
DarkRoomTimer.hex
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