Toggle Sign Using an SR Flip-Flop -- The Learning Circuit 61

Matt — Wed, 15 Sep 2021 07:24:00 GMT

Current Revision posted to Documents by Matt on 9/15/2021 7:24:00 AM

Toggle Sign Using an SR Flip-Flop

The Learning Circuit | element14 presents | Project Videos

www.youtube.com/watch

In the last lesson episode, Karen explored SR and JK flip flops. In this episode, Karen uses an SR Flip Flop with Preset and Clear to demonstrate how the inputs affect the outputs. Using that circuit and no additional parts, Karen shows how to use that flip flop to create a toggle circuit. The final project shows how the circuit can be used to create a Yes/No, Either/Or sign.This circuit is just the beginning. Adding a 555 timer or sensors instead of a button opens the door to the many different ways this circuit can be useful in an everyday item.

Bill of Material:

Product Name	Manufacturer	Quantity	Buy KitBuy Kit
Super Bright White 5mm LED (25 pack)	ADAFRUIT	2	Buy NowBuy Now
Red LED, Through Hole, 5mm, 20 mA, 2.1 V	LED Technology	1	Buy NowBuy Now
LED, Green, Through Hole, T-3 (10mm), 20 mA, 2.2 V, 568 nm	Kingbright	1	Buy NowBuy Now
Flip-Flop, 74LS74, D, 13 ns, 33 MHz, 16 mA, DIP	TEXAS INSTRUMENTS	1	Buy NowBuy Now
Prototype Board, Phenolic, 1.6 mm, 45 mm, 91 mm, (2) small	Multicomp	1	Buy NowBuy Now
Rocker Switch, On-Off, SPST, Panel	ZF ELECTRONICS	1	Buy NowBuy Now
Through Hole Resistor, 10 kohm, 250 mW, ± 1%	TE Connectivity	4	Buy NowBuy Now
Through Hole Resistor, 100 ohm	Multicomp	2	Buy NowBuy Now
Through Hole Resistor, 220 ohm, 400 mW, ± 1%	Vishay	2	Buy NowBuy Now
Tactile Switch, 6mm, Black, Tall, 12 VDC, 50mA	E-switch	4	Buy NowBuy Now
Tactile Switch, 12mm, Black, Tall, 24 VDC, 50mA	Alcoswitch	1	Buy NowBuy Now
Hook-up Wire Spool Set - 22AWG Solid Core - 6 x 25 ft	Adafruit	1	Buy NowBuy Now
9V battery snap, flexible	Multicomp	1	Buy NowBuy Now
Battery, 9 V, PP3, Alkaline	Pro Elec	1	Buy NowBuy Now
Linear Voltage Regulator, 7805, Fixed, 10V To 35V In, 5V And 1A Out, TO-220-3	ON SEMICONDUCTOR	1	Buy NowBuy Now

Additional Parts:

Product Name
Super Bright White 5mm LED (25 pack) - PRODUCT ID: 754 - adafruit.com

Attachments:

community.element14.com/.../TLC_5F00_61-Resources.zip

Tags: don’t mosey, voltage regulator, toggle, clear, mosey, e14presents_makerkaren, the learning cir, preset, the learning circuit, sr latch, flip-flop

The Learning Circuit: 61: Toggle Sign Using an SR Flip-Flop

tariq.ahmad — Fri, 27 Dec 2019 14:35:13 GMT

Revision 1 posted to Documents by tariq.ahmad on 12/27/2019 2:35:13 PM