Test I2C Device MCP23008 with Comm Operator

Comm Operator v4.9 supports Quick Send – I2C Panel. It allows to you communicate with I2C devices through FTDI FT232H based USB to I2C bridge.

Here’s how to test I2C device MCP23008 with Comm Operator I2C Panel.

Download Comm Operator v4.9 beta version to try.

Step 1: Download and install Comm Operator.

Step 2: Connect I2C device MCP23008 with your computer through FTDI FT232H based USB to I2C bridge.

Connect I2C device MCP23008

Step 3: Run Comm Operator, and Open Connection –> I2C Bridge to connect I2C device MCP23008.

Comm Operator - I2C Bridge

Step 4: Click menu View –> I2C Panel to show Quick Send – I2C Panel.

Comm Operator - I2C Panel

Comm Operator - Quick Send - I2C Panel

Step 5: Click Scan button to search I2C device MCP23008 address.

Comm Operator - Scan I2C Devices

If you know the device address, you can just select it from the drop-down list.

Comm Operator - I2C Device Address

Step 6: You can communicate with I2C device MCP23008 now.

For example:

According to I2C protocol and I2C device MCP23008 document, check Write and Read, and input data ”00” (it’s Register Address of MCP23008), then click Send button to read the value of IODIR register.

Comm Operator - Test I2C Device MCP23008

Step 7: Click Edit button to show I2C Data Editor. You can edit address and data here in binary.

Comm Operator - I2C Data Editor

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