This document describes how to send commands through serial terminal emulator software to monitor and control all the Numato Lab USB Modules.
PuTTY – Windows/Linux
The simple set of ASCII based human-readable command set supported by the USB modules makes controlling relays//GPIOs very easy.
The following sections give examples of how to use the module with PuTTY.
To use this module with PuTTY, please follow the steps below.
- Connect the module to the PC. Refer “User Manual” documentation of the module.
- Install Numato Lab USB CDC driver. Refer “Numato Lab USB CDC Driver Installation” documentation
- Note down the COM port number of the module from device manager.
- Open PuTTY, click on serial, input the COM Port number of the module, and click Open.
- A blank screen will be opened on successful connection.
- Press ENTER to start communicating with the module using the commands listed in product user manual.
GNU Screen – Linux
GNU Screen is a full-screen Window Manager that works with Serial Terminals as well
- Open Terminal and verify the device is detected and note down the device name using the “ls /dev”
- Enter the command “sudo screen /dev/<device name>” . Ex : “sudo screen /dev/ttyACM0”
- Command prompt appears on ENTER key press.
- Command listed in the command set can be entered here now.
The Screen – Mac OS X
Mac OSX provides a built-in command program called screen that can be used to communicate with any serial device attached to a Mac device. The screen program is a light-weight Terminal Emulator that is very easy to use.
- Verify the device is detected and note down the device name
- Enter the command “/dev/<device name>”as shown in the image below. Ex: Ex : “screen dev/tty.usbmodem141141”
- Command prompt appears on ENTER key press.
- Commands listed in the command set can be entered here now.
USB Serial Terminal Lite – Android
Device detected by Android can be controlled by sending commands using USB Serial Terminal Lite.
- Connect the device using USB Serial Terminal Lite.
- Enter the commands in the command window and press send button
- The commands and the results will be printed in the log window.