This tutorial shows how to use the Isolated USB EZO Carrier Board to interact with EZO circuits. With a few simple steps, you will be able to calibrate and debug circuits or even monitor in real time the parameter in question.
- Works with EZO circuits: pH, EC, DO, ORP, RTD, FLOW
- No wiring required
- No programming needed
- Offers isolation which protects circuits from electrical interference
- Onboard BNC connector for probe
- No microcontroller needed
- Isolated USB EZO Carrier Board
- USB-A to USB mini B cable
- Terminal Emulator (Termite used here )
Step 1: ASSEMBLE HARDWARE
- Ensure that the EZO circuit is in UART mode. Note: I2C mode will not work for this. For more information on how to change from I2C to UART, refer to this link.
- Insert the circuit into the Isolated USB EZO Carrier Board. Be sure to match the pins correctly. The carrier board's pins are labeled for convenience.
- Attach the probe to the BNC connector.
Step 2: INSTALL EMULATOR AND CONFIGURE THE SETTINGS
- After you have installed the emulator on your computer, launch it.
- Plug the USB-A end of the cable into your computer's USB port while the USB mini-B end goes to the carrier board. Your device should now be powered on.
- In termite, click on the "Settings" tab, a new window called "Serial port settings" will be opened.
- In "Serial port settings", make the changes in accordance with Fig1. Click on the "ok" tab when finished. Note: The port should be automatically detected once the USB is plugged into the computer. In this demo, port = COM13. The baud rate is set to 9600 as it is the default of the EZO circuits.
Step 3: INTERACT WITH YOUR EZO CIRCUITS
Refer to the specific datasheet of your circuit for the list of appropriate commands. Datasheets are on the Atlas Scientific website.