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I2C 4x A/D 1x D/A I/O expander based on a PCF8591T

• Merged with LightUI sliders to make a self contained track mountable lighting controller

• 3.0
• 2.0
• 1.1
• 1.0

I2C-AD4DA Version 3.0

Not built

Note: Experimental design, not released

• 1.0 - initial internal test version - proof of concept slider board tied to stand alone I2C 8591 with a single small slider (LightUI)
• 2.0 - replace slider with larger unit, quantity 4
• 3.0 - move PCF8591 onboard, ise I2C interconnect
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Bot Silk

Board

Top Silk

UNPUBLISHED

I2C-AD4DA Version 2.0

First built: 2018-07

• Convert to SPCoast preferred board style (3.17” Tyco mounting track plus carrier)

Bot Silk

Board

Top Silk

UNPUBLISHED

I2C-AD4DA Version 1.1

First built: 2014-12

Note: Replaced by a newer version.

• Added decoupling caps to A/D inputs, filter caps to power supply, inductor between VDD and REF

Bot Silk

Board

Top Silk

UNPUBLISHED

I2C-AD4DA Version 1.0

First built: 2014-10

Note: Replaced by a newer version.

• Simple 5x5cm board, initial experiments

Bot Silk

Board

Top Silk

UNPUBLISHED

This project’s technical documentation is licensed under the CERN Open Hardware Licence v1.2