Mezishicage Also from where did u buy the IC? After making the circuit we encounter some problems, instead of just counting from it continuous up to They are further described in Table 1. The function of many pins is determined by the configuration of the FTH. For the IC SI, you ddatasheet ground the device by connecting acomputer hardware. Disconnects the RS.

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Kahn You may also be interested in other Timer circuits we have in our website: How to make one transistor FM transmitter on a stripboard- page Remote operated musical bell. Previous post Next post. Media New media New comments Search media. If any use of RTOS system in electronics industry. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I cant find mm74c in multisim too. Datasheets, Manuals or Parts.

Hi guys i built the circuit successfully however it doesnt reset at 60 senconds and instead continues to 99 does anyone have any soulutions. Rotary switch S1 is used to select the different time periods at the output of the astable multivibrator IC1. Like that all the terminals of the IC is connected to the respective terminals of the 7-segment display. I was made this projects. Wat will be the cost of tis project.! Can u tell me which tansistor to use? To participate you need to register.

Hi Naish use the following data for your connections http: If you want to stop the clock, close S2. And also this is a suitable hobby project for newbies. Articles Top Articles Search resources. When monostable circuit generates output, astable mode timer starts giving pulses to the counter module.

How are the resistors connected to the 7-segments? You can buy the kit at BuildCircuit store. So, what i do or anything wrong in project. The circuit works off a 5V power supply. Dark sensor on breadboard September 8, TO know more about the terminals of the 7-segment display check this link http: How does the IC work?

But there are not any effect of LDR on display. Pin 3 of monostable circuit has been connected to pin 4 of astable timer. Hi Kkak52, You have to add pull-down resistors at the reset, latch and diplay select inputs.

How does the IC work? How to use variable resistors November 15, Digital object counter DIY kit September 1, By continuing to use datasbeet site, you are consenting to our use of cookies.

Open inputs are never a good idea when designing with digital circuits, especially when they are CMOS. For a datsheet experience, please enable JavaScript in your browser before proceeding. Check it once more time Akshada. What will be the price of overall project. I have Made digital stopwatch using this cct.

Your email address will not be published. Auto-Detection l Bluetooth l Smart Multimeter. Jc switch December 18, Any idea how to fix this. Powering up 3 digit object counter with USB cable. For more circuits, please check our category on Clocking and Timer Circuits. My soldering is also propered. Related Posts





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