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Blink(1) USB LED Notification Light

Overview

Blink(1) is a small USB RGB LED notification light made by ThingM. Plug it into any USB port and Apprise can flash it in a color that reflects the notification type:

Notification TypeColor
InfoBlue
SuccessGreen
WarningYellow
FailureRed

The plugin talks to the device directly over USB HID using the hidapi Python package. There is no cloud service, no API key, and no network connection required.

blink1://
blink1://{serial}/
blink1://{serial}/?duration={ms}&fade={ms}&ledn={n}

Use blink1:// (or blink1://_/) to target the first connected device. Supply the device serial number in the host position to address a specific unit when more than one Blink(1) is attached.

VariableRequiredDescription
serialNoUSB serial number of the target device. Omit (or use _) to use the first available device.
durationNoHow long in milliseconds to hold the notification color before switching the LED off. Default: 5000. Range: 0-300000.
fadeNoFade transition time in milliseconds. 0 = instant. Default: 0. Range: 0-10000.
lednNoWhich LED to address: 0 = all (default), 1 = first LED only, 2 = second LED only (mk2 devices).
VariableDescription
overflowThis parameter can be set to either split, truncate, or upstream. This determines how Apprise delivers the message you pass it. By default this is set to upstream
👉 upstream: Do nothing at all; pass the message exactly as you received it to the service.
👉 truncate: Ensure that the message will fit within the service’s documented upstream message limit. If more information was passed then the defined limit, the overhead information is truncated.
👉 split: similar to truncate except if the message doesn’t fit within the service’s documented upstream message limit, it is split into smaller chunks and they are all delivered sequentially there-after.
formatThis parameter can be set to either text, html, or markdown. Some services support the ability to post content by several different means. The default of this varies (it can be one of the 3 mentioned at any time depending on which service you choose). You can optionally force this setting to stray from the defaults if you wish. If the service doesn’t support different types of transmission formats, then this field is ignored.
verifyExternal requests made to secure locations (such as through the use of https) will have certificates associated with them. By default, Apprise will verify that these certificates are valid; if they are not then no notification will be sent to the source. In some occasions, a user might not have a certificate authority to verify the key against or they trust the source; in this case you will want to set this flag to no. By default it is set to yes.
ctoThis stands for Socket Connect Timeout. This is the number of seconds Requests will wait for your client to establish a connection to a remote machine (corresponding to the connect()) call on the socket. The default value is 4.0 seconds.
rtoThis stands for Socket Read Timeout. This is the number of seconds the client will wait for the server to send a response. The default value is 4.0 seconds.
emojisEnable Emoji support (such as providing :+1: would translate to 👍). By default this is set to no.
Note: Depending on server side settings, the administrator has the power to disable emoji support at a global level; but default this is not the case.
tzIdentify the IANA Time Zone Database you wish to operate as. By default this is detected based on the configuration the server hosting Apprise is running on. You can set this to things like America/Toronto, or any other properly formated Timezone describing your area.

Flash the first connected Blink(1) with all defaults (blue, instant, 5 s):

Terminal window
apprise -vv -t "Deploy finished" -b "All checks passed." \
blink1://

Address a specific device and use a 250 ms fade with a 2-second hold:

Terminal window
apprise -vv -n warning -b "Disk almost full." \
"blink1://ABCD1234/?fade=250&duration=2000"

Light only the second LED on a mk2 device:

Terminal window
apprise -vv -n failure -b "Build failed." \
"blink1://?ledn=2"
Questions or Feedback?

Documentation

Notice a typo or an error? Report it or contribute a fix .

Technical Issues

Having trouble with the code? Open an issue on GitHub:

Made with love from Canada