Project Description
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Project description
We use PIC16F84A MCU with 4 × 2SC945 general purpose NPN transistors to drive this TOD-4201LR SSD unit. This proposed system is design to work with +5V DC power supply and may not need any additional input data source.
Supplied software for this project is for demonstration purposes only and it perform counting from 0 to 99 and then reset back to 0. To generate the output user need to assign required number to the value variable and make jump to the show_num section of code. According to the given lookup table this software may be able to generate digits from 0 to 9 and “E”, “-“ and “.” symbols.
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Component (8)
Qty
Description
![](https://upverter.com/static/renders/components/465/46533193dfcca7e5_48x48.png)
microchip:PIC16F8*:P
IC1
1
microchip:PIC16F8*:P
![](https://upverter.com/static/renders/components/572/5726325612de77bf_48x48.png)
special:XTAL:
Q1
1
special:XTAL:
![](https://upverter.com/static/renders/components/ab4/ab4004e29e029eb4_48x48.png)
capacitor-wima:C:5/2.5
C1, C2
2
capacitor-wima:C:5/2.5
![](https://upverter.com/static/renders/components/7b5/7b5aa5fea01d723c_48x48.png)
supply1:GND:
GND1, GND2, GND3, GND4, GND5, GND6
6
supply1:GND: