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Arduino - Dot Matrix Screen Writing LED

1. Objectives

Achieve a pen writing on dot-matrix screen.

2. Circuit analysis
Dot matrix screen handwriting consists of three main parts: the row scanning circuit, column scanning circuit shown, light pen detection circuit, block diagram below. 778 more words

Pen Plotter - The Idea

When I started playing with electronics, we had some few options to create your Circuit Board at home. Basically, we could draw everything by hand using a special pen. 293 more words

The Best Place PCB Designers Choose to Stay

Until now, we have more than 10thousands creative, brilliant and well-educated pcb designers and electronic engineers as our esteemed members.

And our pcb service business is growing dramatically, there must be reasons why it happen.  279 more words

i2c Relay Expander Uses Nifty Card-Edge Connection

wanted to use an off-the-shelf relay board from Numato Labs. The board lacks a suitable computer interface, which meant that would have to build one, and its input connectors are screw terminals, which meant a lot of wiring. 225 more words

Pcb

Dyson 360 Eye: How It's Engineered


You think designing and testing a product for mass production is easy! Well, this is just a glimpse of the process…

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