MEET OUR BINARY COUNTER, The fun and easy 8 bit binary counter via LED kit.

 

Our binary COUNTER - B8 kit has many applications; Manual press the push button to count up to 2 ^ 8 (1 to 255 decimal) counts. The binary counts will display on bright 8 LEDs! Automatic, short the switch to automatically count again and again. Draw attention and have fun! The unique small design will allow you to mount it almost anywhere. Simply connect the switch to your room door and you can count the number of time your brother "pick-in." Operate it with 9V battery, 12V car battery, four 1.5V batteries, or via one of our battery simulator kits. The alternative uses are endless. It’s designed for the beginner as well as the expert. Please drop us a line at sales@eidusa.com and let us know how you and your kids use your COUNTERS!

 

The COUNTER-B8 heart is the PIC micro-processor Integrated Circuit (IC) PIC12F675 (4MHZ version) by Microchip, Corp.

 

This kit is an educational electronics kit that allows one to customize the LED sequence rotation speed and more by changing the Assembler code (software) provided (YES .ASM and .HEX are AS-IS and FREE!).

 

One can program the PIC using PIC-KIT2 by Microchip Corporation directly from personal computer (PC) via  Universal Serial Port (USB). 

 

Note: The PIC 12F675 IC is 8 pin DIP, 14bit type Micro-processor with 4 Analog to Digital port and 6 I/O. Click here to download the the PIC 12F675 chip data-sheet.

 

Do It Yourself (DIY) Software driven micro-processor base kit, and have a blast!

 

 

(Both, switch and wires are options)

Kit Includes:

  • PIC 12F675                         1pc.

  • 78L05  Voltage regulator       1pc.

  • Diode 1N4007                      1pc.

  • 330 Ohms         Resistor        4pc.

  • 0.1uf/50v          Capacitor     1pc.

  • Red                 LED              8pc.

  • 9V battery clips Connector     1pc.

  • PCB                                    1pc.

Schematic:  

 

 

MEET COUNTER – Our binary counter via LEDs kit. The kit  is based on “PIC micro-processor PIC12F675. Using software code to control  (turn ‘on’ and ‘off’) the corresponding LED. This basic kit can work with many conventional color LEDs Green, Yellow or Red etc.

 

The 330 Ohms resistor determines the LED's brightness and limits the current flow to about 10mA when running with 9V battery. Standard LED will operate on 10-20mA and the voltage developed on the LED is about 1.6VDC, therefore:

 

R_Led = (V_Bat – V_CE – V_LED) / 20mA = (5VDC - 1.6VDC) / 10mA = 340 Ohms we use standard 5% 0.25W 330 ohms resistors. Please be advised you should never exceed the LED maximum current limitations. Doing so will result in burning the LED.

 

The COUNTER flash rate is determined by the software; Each push button press will skip to the next binary count that represented via LED (L1 to L8). 

 

Finally, one can easily change the code to run the LEDs automatically. the only hardware change will be shorting the SW on the PCB (point A short to Point B).

 

Note:  The push button switch is for demonstration only and is not included in this kit. When using the push button switch add R5 pull-up resistor on the back of the board at designate pads.

Description and SKU#

Price

Picture

PIC BINARY COUNTER Kit 

EID-K-COU-NTER-B8-ASM (Fully assembled)

 

27.33

 

EID-K-COU-NTER-B8-KIT Kit Only

24.93

 

EID-K-COU-NTER-B8-PCB PCB Only

12.87

 

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