0802 LCD I2C Adapter

Name: 0802 LCD I2C Adapter
SKU: 10616
Price: 1.00 USD
Availability: Discontinued
Rating: 5.00 (1 reviews)

(1 Review)

This board allows an I2C LCD backpack to be mounted to an 0802 display

Designed by Red Hunter in United States of America

Product Retired

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2017-10-18T04:12:41.799Z-lcd0802adapterblue.jpg

2017-10-01T21:01:58.528Z-lcd802green.jpg

2017-10-01T21:01:58.528Z-lcd0802adapterworks.jpg

After 9 years on Tindie I am retiring my listings and moving them over to my Etsy store which is named "redhunterstore". See the About page for details.

This board allows an I2C LCD backpack to be mounted to an 0802 display

What is it? This is a circuit board which acts as an adapter between the common I2C backpacks and the 0802 format display, providing a compact and tidy result. It works with the 14-pin and 16-pin dis…

What is it?

This is a circuit board which acts as an adapter between the common I2C backpacks and the 0802 format display, providing a compact and tidy result. It works with the 14-pin and 16-pin display types.

Why did you make it?

I made one up by hand with proto-board and kynar wire and it took ages. Then I needed another one. So I made up 3 prototypes at OSHPark and put the extras on Tindie. Then I ran out. So it's now a product.

Instructions

Place the display face down.
Insert 2 x 7 header pins into positions 1-14, short end first. DO NOT SOLDER. On 16 pin displays, leave 15 & 16 open (they are the same as A and K).
Insert 2 single header pins into position A and K, short end first. DO NOT SOLDER.
Place the adapter board on the pins. Display pin 1 to board pin 1.
There are two positions for A and K - move the single pins around for the best fit with your display - there appears to be no standard locations for these on the displays. The single pins have a bit of wiggle, so it's ok to lean them a bit if needed.
Solder the headers to the adapter board. DO NOT SOLDER TO THE DISPLAY.
Lift the adapter board off the display.
Trim off the long ends of the header pins with wire cutters. Eye protection is advised - those things fly!
These instructions assume that the I2C adapter has the 16 pin header already installed. If not - you need that done before the next step.
Insert the I2C module into the adapter board - on the other side from where you had the display. The GND pin on the I2C module is closest to the 14-pin header. Look at the picture.
Solder 1 pin on the I2C module, then straighten it up. Then solder the other 15 pins.
Trim off the long ends of the header pins with wire cutters.
Position the display back on its headers.
Solder the 16 pins to the display.

Notes:

The I2C modules which I supply include a jumper to the backlight circuit. My preference is to solder a 330R resistor in that position as a current limiter, at least on 5V projects. probably not needed on 3.3V
These modules also include the contrast pot and address jumpers. Default address is 0x27.
I2C bus requires pullup resistors somewhere on the bus. 4.7K usually does the trick.
I use this library for these displays.