Bubble Display I2C adapter

Pesky Products created this nifty breakout board:

Retro bubble displays in a convenient I2C package

2014-07-14T06:48:09.060Z-BubbleDisplay.png.2560x2560_q85

These HP QDSP-6064 bubble displays have a cool retro look right out of the seventies. More practically, they allow compact numerical displays and, coupled with the HT16K33 LED driver chip, 16 digits can be displayed with only two I2C wires, power and ground. That’s a lot of display without taking up a lot of GPIO pins.

The design offers several advantages:

  • no external current-limiting resistors with the HT16K33 chip
  • power the display board with 3.3V or 5V
  • only 4 wires to control up to 8 x 4 four-digit displays
  • 8 boards can be independently addressed via solder jumpers
  • small footprint at 1.46″ x 1.51″b

Arduino code to display integer and floating point numbers on the bubble display:

gitkriswiner/HT16K33_Display_Driver

a55e100a-f9b7-11e3-8383-eef494fc2576

 

PeskyProducts shared the board on OSH Park:

BubbleDisplayFrontPack.v02x

i (15)
Order from OSH Park

Bubble Display I2C adapter

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s