Keypad Decoder

Khalid.ak · Jan 28, 2016

I am building a keypad decoder using a circuit diagram below, however i have come across a problem where LED 2 and 4 will not light up, i have been unable to find the error i have been doing, so any help would appreciated

Khalid.ak · Jan 28, 2016

photo of my current board in correct orientation

Thread starter	Similar threads	Forum	Replies	Date
	Wiring keypad control for 115vac fuel pump	General Electronics Chat	5	Feb 2, 2024
	Reverse engineering a membrane keypad	Test & Measurement	2	Nov 10, 2023
T	Life Fitness T3 Treadmill no longer responds to keypad	Technical Repair	0	Nov 8, 2023
C	Keypad matrix decoder	Homework Help	1	Sep 1, 2011
F	Help, designing a keypad matrix decoder	Homework Help	3	Aug 15, 2005

Keypad Decoder

Join our Engineering Community! Sign-in with:

Keypad Decoder

Khalid.ak

Attachments

Khalid.ak

Attachments

You May Also Like

AMD Launches Embedded+ Architecture Blending Ryzen and Versal

TI Launches Compact Power Devices Ahead of APEC 2024

Nordic, MediaTek, and U-blox Take on New Wireless Frontiers

Heart Sensor Grows With Tissue to Measure Both Mechanical, Electrical Data