TechDisc uses the LED to display its current state. Generally green is goo, but see what each pattern means below:
Note: LED patterns were updated with the October 2026 firmware release
A green blinking LED means Bluetooth is not connected to any devices. Use the mobile app (Android or iOS) or web app to pair your TechDisc to your device. The green light will blink for up to 60 seconds while waiting for a connection.
A green solid LED means the TechDisc is connected and ready to throw. 
When TechDisc is thrown the LED blinks blue while the data is being transferred.
After the transfer the LED blinks cyan while it prepares for the next throw.
A solid red LED means the TechDisc is charging. When charging is complete the light turns off.
During power on the LED fades from cyan to green, and during power off the LED fades from green to cyan.
A red blinking light means an error has occurred or a red and green blinking light means an error has occurred. For errors or any other needed assistance, please contact TechDisc support via our Support Ticketing System, or send us an email to help@techdisc.com.
Note: The sensor will go to sleep if it is still for a minute in order to save battery. The sensor will automatically wake up when you pick it up or move it.
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