HD74LSP Specifications: Flip-Flop Type: J-K ; Triggering: Negative-edge Triggered ; Supply Details, datasheet, quote on part number: HD74LSP. Hitachi HD74LSP: available from 4 distributors. Explore Hitachi on Octopart: the fastest source for datasheets, pricing, specs and availability. HD74LSP from Renesas Electronics. Find the PDF Datasheet, Specifications and Distributor Information.
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See it in action on this video and watch out for the fire part! Here we have a simple example of the Shift Register for controlling a display. As you can see in the image above, a 7 segment led display is nothing more than some leds arranged in a particular position.
You have 7 of them, and with that you can arrange to display the numbers from 0 to 9, a minus sign, and a few letters. Our 4 digit led display is common anode, what does this means? Se the schematic for the 4 digit display: This allows several binary devices to be controlled using only two or three pins — the devices in question are attached to the parallel outputs of the shift register, then the desired state of all those devices can be sent out of the microprocessor using a single serial connection.
Similarly, PISO configurations are commonly used to add more binary inputs to a microprocessor than are available — each binary input i. We are also using the Thermistor to check the temperature and send an analog value to our arduino UNO board, who will transform this analog data in a digital value and store it on a variable.
We use this value to determine the number to be displayed. We are attaching it to Analog 0 in our Arduino Board.
RENESAS (RENESAS TECHNOLOGY CORP) Electronic Components Datasheet –
Explaining the 4 digit 7 segment Led Display: Using the shift register: This is a very simple proyect too. We are measuring the ambient temperature with a Thermistor 4,7k and showing the results by an RGB Led. We are assuming the cool temperature is Blue and the hot is Red.