Camera control project build.

Other Hardware 3rd Party Boards
1

Hi folks,

Recent events have got me closer to the final build on a Camera control unit for "Time laps" and other things with the camera.

All the testing has been done on my UNO, but I am going to use a NANO finally. Size matters.

I am hooking up an RTC, a keypad (Membrane 1x4 Keypad + Extras : ID 1332 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits) and a custom built board. 4 ICs, 2 x 7 Seg LED displays and 1 x LED bar graph.

As it is getting close to actually putting it all together, I am stuck on how to connect the keypad to the Arduino NANO.

As the pins don't allow a direct connection (as to say there isn't any where that the key pad could directly connect pin for pin to the NANO.

Alas there is no room on my board as it is a small "prototype" kind of board which amazingly worked out well for the 4 ICs.

What would be "nice" is a bit of vero board 5 x 2 so the key pad could go in one set of holes )via solder pins) and wires in the other. Then I could take the wires to where ever I wanted on the NANO.

I'll try to get piccies soon, but for now am bogged down in the program and the menu layout.

As I said, I would like to make it as small as possible. I've seen some nice battery packs available and shall have to get one.

Thanks in advance.

2

"Time laps"

I assume you mean "Time Lapse"

as opposed to "Timed Laps"

What is the objective of your post ?
Is there a question ?

3

raschemmel:

"Time laps"

I assume you mean "Time Lapse"

Google

as opposed to "Timed Laps"

Google

What is the objective of your post ?
Is there a question ?

Yeah, I can't spell. Time Lapse.

An easy way to connect the "keypad" to the circuit.

As I mentioned it is being tested on an UNO but going onto a NANO because I want to make it as SMALL as possible.

4

Exactly what is "the keyboard"?

5

As per original post:

I am hooking up an RTC, a keypad (Membrane 1x4 Keypad + Extras : ID 1332 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits) and a custom built board. 4 ICs, 2 x 7 Seg LED displays and 1 x LED bar graph.

As it is getting close to actually putting it all together, I am stuck on how to connect the keypad to the Arduino NANO.

6

Since each key separate you treat them just like switches.

I built my own keypads and use Alexander Brevig’s button library. This makes the management of the key presses fairly simple.
I have a brief post at Keypads and Button Switches on the Arduino | Martyn Currey

7

Not bad, but I am using CButton and that is even better. :stuck_out_tongue:

Shame you didn't know if the keypad I mentioned. That would have been good for what you needed.

One thing I notice:
You are using resistors to "pull up" the inputs. So when the button is pressed the line goes low.
(or vice versa)

You know you could save pins by setting the internal pull up resistors on?

Just a suggestion.

Anyway, good luck with it.

8

Haven't tried CButton may look into it. At the moment Alexander Brevig’s button library does everything I need and is light weight.

I wanted a traditional navigation keypad ( cross layout) and couldn't find anything suitable so I made my own. I have since found similar keypads that use a single wire and I use these in new projects.
http://forum.arduino.cc/index.php?topic=226185.msg1666247#msg1666247