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Electrons: Data In and Data Out with an HC-SR04 and a 16x2 Display

99p buys you the cutest mini robot face ever.

Electrons: Data In and Data Out with an HC-SR04 and a 16x2 Display

Previously, I added the display board to a nano - but this just outputted pre-programmed text, and I wanted the nano to send out information that it collects itself. Part of that was so I could play with this rather beautiful-looking distance sensor. My idea is to use this as a proximity sensor for some sort of arduino controlled vehicle in the future...but for now I just wanted to test this little board.

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23-Jan-2015 Permanent Link

 

Electrons: Driving a text display screen from an Arduino

Using the HD44780 Character LCD Display Module

Electrons: Driving a text display screen from an Arduino

Now that I've got an Arduino controlling things, I want some way to let it communicate with me. You can get them to talk back to a computer via a serial port, but really I want these experiments to stand alone (after programming) so I need another way.

Enter the HD44780 text display: a whopping £1.26, delivered from eBay. This came without headers fitted, so I used some from the electronic component pack which I mentioned in an earlier post. However, I'll also need a variable resistor (volume control) to make it work, taken from the same kit.

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18-Jan-2015 Permanent Link

 

Electrons: My first LED matrix

Time for retro 1 bit graphics with the MAX279

Electrons: My first LED matrix

The next parts kit for me to experiment with is the:

MAX7219 Dot Arduino Matrix Display Module Cascade Control Arduino Module DIY New

This was £1.27 supplied as components and a board.  You can get the board ready built for a few pence more. The board has a LED driver chip, and sockets for an 8x8 LED grid.

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12-Jan-2015 Permanent Link

 

It's all about me...

I'm a 46 year old married father who works with websites for a living. Doing that for work means I dont often update this site, unless I can think of something useful to say. I mostly like taking photos - and most of my internet presence now will be related to that.

Something else?

Dont you find it ironic that people invest so much in bringing you to a website only to give you a list of links to take you elsewhere? So I'm not going to give you a list of my favourite haunts to send you away from this site.

(c) somewhere in space and time: M.Norman