I2C oled and a DS1307 on vero board.

I'm going to make a small vero board with at least this small display and this RTC. Then I'll have power and ground wires out, as well as the SDA and SCL in some colour or other.. Probably also include a couple of EEPROMs.

The idea is to have a handy module with display, time and memory, with just the 2 data lines and power.

Those are the common I2C devices I've used: what else would you include as a norm (ie a module you would use in many projects, not specialised devices, unless of course your normal project includes specialised devices.)

i dont have resistor with SDA & SCL Line . you need include The Resistor to make it work.

https://www.google.co.in/search?q=ds1307+schematic+arduino&rlz=1C1GGGE___IN618IN618&espv=2&biw=1360&bih=653&source=lnms&tbm=isch&sa=X&ei=o3aSVOOEG42fugSm0YHwDg&ved=0CAYQ_AUoAQ#facrc=&imgdii=&imgrc=2a8EG6zx8cGBhM%253A%3BNUe1n7yNhvm7rM%3Bhttp%253A%252F%252Fwww.electroschematics.com%252Fwp-content%252Fuploads%252F2013%252F07%252Fds1307-circuit-diagram.png%3Bhttp%253A%252F%252Fwww.electroschematics.com%252F8921%252Fdigital-clock-with-arduino-and-ds1307%252F%3B640%3B291

you need at these resistor;

Which board you are using for coding>>>

Yep I know about the pullups, thanks.

How about making it so it can also read and display serial data. Sometimes handy to debug stand alone code.

Add a few buttons that can be switched between pull to GND or pull to VCC

Add a 10K potentiometer or two

And finally some bi-colour (2 pin) leds for debugging pins on output or input mode.

Riva:
How about making it so it can also read and display serial data. Sometimes handy to debug stand alone code.

Not sure what you mean by that Riva?

Add a few buttons that can be switched between pull to GND or pull to VCC

Add a 10K potentiometer or two

And finally some bi-colour (2 pin) leds for debugging pins on output or input mode.

Yeah I was thinking a few LEDs would be handy. Switches and pots good idea, but I think I'll put them on a separate board.

JimboZA:
Not sure what you mean by that Riva?

The display is I2C but if you had a chip that can read TTL serial and display it then you have a portable serial monitor that can be used to maybe help debug stand alone projects (not connected to PC via USB)

Ah, right.

Decided on the format as attached. I2C oled screen and DS1307 on the left with 2x EEPROMs to go below. On the right a couple of pots, piezo buzzer, 4x dip switches and a couple of buttons, 2 LEDs with 2 more to put in.

The LEDs are resistored for 5V; they and the piezo have one side grounded, header pin for 5V from Arduino. NTS: remember to use INPUT_PULLUPs on the switches since one side is grounded.

Very handy little doo-dah methinks.