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JeeLabs Analog Plug jcw

4-channel 12- to 18-bit ADC connected via I2C

jeelabs.net/projects/hardware/wiki/Analog_Plug

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  • psd schematic processed6 years ago
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Description

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.

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.

Schematic

Board

Bill of Materials

Designator Value Description
C1 0.1µ Capacitor
IC1 MCP3424 18-Bit, 4-Channel Sampling ANALOG-TO-DIGITAL CONVERTER with I2C? Interface
PORT1 JEEPORT PIN HEADER
PORT2 JEEPORT PIN HEADER
SJ1 A0 Solder Jumper
SJ2 A1 Solder Jumper
SV1 PIN HEADER

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This project is © Jean-Claude Wippler, and is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence.