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Analog Plug

The Analog Plug is an 4-channel 12- to 18-bit ADC connected via I2C. It’s based on the MCP3424 chip.

There is a 2x6-pin female header on the side, with the 4 differential analog inputs as well as GND, +3V, PWR, and IRQ. The Breadboard Connector can be used to hook up to the first 3 analog channels, GND, and +3V.

An I2C bus running at 3.3V is used for I/O, with all the power and signal lines brought out to to both sides of the board to allow daisy-chaining with other I2C-conformant boards.

Configuration

There are two solder jumpers to configure each plug for one of the following 7-bit I2C addresses:

More addresses are supported by using other combinations, as described in the MCP3424 datasheet.

Header Pinouts

Design Info

Dimensions: 21.1 x 24.1 mm
CadSoft EAGLE design files: see below.
This plug can be operated at 5V as well as 3.3V.

This board uses the conventions of a JeePlug and can be used with the ports on a JeeNode. It can also be used with other boards and MCU’s, if you hook it up properly and adapt the interface code for it.

How to Get It

http://jeelabs.com/products/analog-plug

See Also

The previous version was lab/AP1.

Related Weblog Posts


ap2.DSC_0780.jpg (12.7 KB) myra, 2012-07-17 13:13

ap2.DSC_0779.jpg (11.3 KB) myra, 2012-07-17 13:13

ap2._00000353.png (12.1 KB) myra, 2012-07-17 13:13

ap2._000004c6.png (33.5 KB) myra, 2012-07-17 13:13

jlpcb-064.pdf (12.2 KB) myra, 2012-07-17 16:10

jlpcb-064.sch (19.8 KB) myra, 2012-07-17 16:10

jlpcb-064.brd (14.7 KB) myra, 2012-07-17 16:10

jlpcb-064.png (88.1 KB) myra, 2012-07-17 16:10