Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I've reviewed as many posts and circuits as I could find in the forum about LED sequencing. I need a circuit that will sequence through 42 LED's a pair at a time with a push button using 21 channels. I used the much referenced Bowden matrix sequence circuit with two 4017 IC's. My circuit adds...
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