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Step 4The schematics
I did the best as I could to make a good schematic, I hope you will understand it.
(Note : That I forgot to add the resistor to the reset pin in the schematic so you will need to add a 1K resistor to the reset pin and Vcc)
To see the schematic better download it.
Some things I didn't added in there and they are the connection of the transistors to the display.
Now for the transistors that are connected to the 4017: There are just one unused pin in there and thats the collector and you need to connect it the ground of the seven segment display, each resistor is for one digit.
The transistors the are connected to the micro-controller has the emitter pin unused and you need to connect is to the segments via a current limiting resistor, each segment gets one transistor.
The 2 transistors that have a LED connected to them represent the 4 dots in the display you can see how to connect in the display picture.
Look at all the pictures in this step to know what goes where.
(Note : That I forgot to add the resistor to the reset pin in the schematic so you will need to add a 1K resistor to the reset pin and Vcc)
To see the schematic better download it.
Some things I didn't added in there and they are the connection of the transistors to the display.
Now for the transistors that are connected to the 4017: There are just one unused pin in there and thats the collector and you need to connect it the ground of the seven segment display, each resistor is for one digit.
The transistors the are connected to the micro-controller has the emitter pin unused and you need to connect is to the segments via a current limiting resistor, each segment gets one transistor.
The 2 transistors that have a LED connected to them represent the 4 dots in the display you can see how to connect in the display picture.
Look at all the pictures in this step to know what goes where.
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ph-heema@hotmail.com
sorry but just one more thing how many days it took from you to make it ?
membrane_owner@yahoo.com
Thanks in advance :)
And the AT27C01 is actually the ATMega328/168, the named changed because my software is stupid.
uzonigor@live.com