sainsmart_relay_usb repository

Repository Summary

Checkout URI https://bitbucket.org/DataspeedInc/sainsmart_relay_usb
VCS Type hg
VCS Version default
Last Updated 2018-10-26
Dev Status MAINTAINED
Released RELEASED

Packages

Name Version
sainsmart_relay_usb 0.0.2

README

sainsmart_relay_usb

ROS interface to SainSmart USB relay boards for automation

List Devices

rosrun sainsmart_relay_usb list

Relay Node

rosrun sainsmart_relay_usb relay_node

Parameters

  • serial Explicitly specify device serial number. Default <empty>
  • desc Explicitly specify device description. Default <empty>

Published topics

  • ready, std_msgs/Bool, true when device is connected, otherwise false, (latched topic)
  • serial, std_msgs/String, serial number of the connected device (latched topic)

Subscribed topics

  • relay_cmd, std_msgs/Byte, relay command (one bit per relay channel)

Troubleshooting

  • Unable to connect to the device (no terminal messages)
    • Can Linux see the USB device?
      • lsusb | grep 0403:6001 * Only one executable can use a hardware device at a time. * Make sure no other running software is using the hardware. * By default, Linux USB devices have very limited permissions. Udev rules are used to modify device permissions when connected. * When installing with binaries with apt-get, the udev rules are installed automatically. * Check if this package's udev rules are installed: ls /etc/udev/rules.d/ | grep 90-SainSmartRelayUsbRules.rules or ls /lib/udev/rules.d/ | grep sainsmart-relay-usb.rules * Otherwise, follow the directions in 90-SainSmartRelayUsbRules.rules to perform a manual install. * When the board is connected to the PC and the PC is restarted, the relays will be toggled several times. This is because of the structure of the FTDI chip.

Repository Summary

Checkout URI https://bitbucket.org/DataspeedInc/sainsmart_relay_usb
VCS Type hg
VCS Version default
Last Updated 2018-10-26
Dev Status MAINTAINED
Released RELEASED

Packages

Name Version
sainsmart_relay_usb 0.0.2

README

sainsmart_relay_usb

ROS interface to SainSmart USB relay boards for automation

List Devices

rosrun sainsmart_relay_usb list

Relay Node

rosrun sainsmart_relay_usb relay_node

Parameters

  • serial Explicitly specify device serial number. Default <empty>
  • desc Explicitly specify device description. Default <empty>

Published topics

  • ready, std_msgs/Bool, true when device is connected, otherwise false, (latched topic)
  • serial, std_msgs/String, serial number of the connected device (latched topic)

Subscribed topics

  • relay_cmd, std_msgs/Byte, relay command (one bit per relay channel)

Troubleshooting

  • Unable to connect to the device (no terminal messages)
    • Can Linux see the USB device?
      • lsusb | grep 0403:6001 * Only one executable can use a hardware device at a time. * Make sure no other running software is using the hardware. * By default, Linux USB devices have very limited permissions. Udev rules are used to modify device permissions when connected. * When installing with binaries with apt-get, the udev rules are installed automatically. * Check if this package's udev rules are installed: ls /etc/udev/rules.d/ | grep 90-SainSmartRelayUsbRules.rules or ls /lib/udev/rules.d/ | grep sainsmart-relay-usb.rules * Otherwise, follow the directions in 90-SainSmartRelayUsbRules.rules to perform a manual install. * When the board is connected to the PC and the PC is restarted, the relays will be toggled several times. This is because of the structure of the FTDI chip.

Repository Summary

Checkout URI https://bitbucket.org/DataspeedInc/sainsmart_relay_usb
VCS Type hg
VCS Version default
Last Updated 2018-10-26
Dev Status MAINTAINED
Released RELEASED

Packages

Name Version
sainsmart_relay_usb 0.0.2

README

sainsmart_relay_usb

ROS interface to SainSmart USB relay boards for automation

List Devices

rosrun sainsmart_relay_usb list

Relay Node

rosrun sainsmart_relay_usb relay_node

Parameters

  • serial Explicitly specify device serial number. Default <empty>
  • desc Explicitly specify device description. Default <empty>

Published topics

  • ready, std_msgs/Bool, true when device is connected, otherwise false, (latched topic)
  • serial, std_msgs/String, serial number of the connected device (latched topic)

Subscribed topics

  • relay_cmd, std_msgs/Byte, relay command (one bit per relay channel)

Troubleshooting

  • Unable to connect to the device (no terminal messages)
    • Can Linux see the USB device?
      • lsusb | grep 0403:6001 * Only one executable can use a hardware device at a time. * Make sure no other running software is using the hardware. * By default, Linux USB devices have very limited permissions. Udev rules are used to modify device permissions when connected. * When installing with binaries with apt-get, the udev rules are installed automatically. * Check if this package's udev rules are installed: ls /etc/udev/rules.d/ | grep 90-SainSmartRelayUsbRules.rules or ls /lib/udev/rules.d/ | grep sainsmart-relay-usb.rules * Otherwise, follow the directions in 90-SainSmartRelayUsbRules.rules to perform a manual install. * When the board is connected to the PC and the PC is restarted, the relays will be toggled several times. This is because of the structure of the FTDI chip.