Shenzhen Kuibu Electronic LT-L8 Electrical Keyboard User Manual

: June 5, 2024
: Shenzhen Kuibu Electronic

Table of Contents

Electrical parameters
Drive related
Bluetooth connection mode
USB connection mode
Combination key description
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User Manual

Electrical parameters

1.1.11 Charging voltage: 5V+-0.25V
1.1.12 Charging current: 300-500mA
1.1.13 Working current in constant light mode: less than 250mA
1.1.14 Turn off the backlight: 12mA
1.1.15 Sleep mode current: 0.05-0.25mA

1.1.11 Macro configuration: default 3, factory default configuration 0
1.1.12 Main backlight: 22 by default, factory default light wave (Customized lighting, sound rhythm, and light shadow only support drive control)
1.1.13 Button sensitivity: 10 gears by default, 1 gear at the factory
1.1.14 Sleep settings: Bluetooth off the backlight, Bluetooth deep sleep,
2.4G off the backlight, 2.4G deep sleep
Factory setting: 2 minutes 30 minutes 2 minutes 30 minutes
Setting range: 1-60 minutes, 10-60 minutes, 1-60 minutes, 10-60 minutes
Fn layer: default 1 layer
Onboard macros: The maximum limit supports 50 macros, and each macro supports 64 characters

Bluetooth connection mode

1.1.11 Bluetooth mode:
Bluetooth: FN+1/2/3 long press 3S to enter the corresponding channel pairing mode of Bluetooth, BT1 channel 1-blue, flashes quickly when pairing, flashes slowly when reconnecting, the pairing is successful and always bright blue, BT2 channel 2-cyan, it flashes quickly when pairing, and flashes slowly when reconnecting, the pairing is successful and always bright cyan, BT3 channel 3-purple, it flashes quickly when pairing, and flashes slowly when reconnecting.
If pairing succeeds, it will always light purple.2.4G: FN+4=long press for 3 seconds to enter 2.4G code matching mode, 2.4G-green,
It flashes quickly when pairing, and flashes slowly when you return, and it will always be green when pairing is successful.

USB connection mode

1.1.11 USB mode:
USB valid connection-always bright white Note: charging-always bright red, full-OFF, Low battery-red flashing slowly. When the USB cable is inserted for
charging, BT pairing and 2.4G pairing Indication priority, during normal operation, charging indication priority, battery voltage is lower than 3.3V, Turn off the light effect, when there is a key action (whether it is BT or 2.4G or whether the normal connection is successful. The red light of “LED Definition 2”
flashes slowly at 1Hz to indicate low battery), the battery voltage is equal to or lower than 3.0V, and The keyboard function is turned off (BT sleep, RF connection disconnected, MCU enters low power sleep), When the button is pressed (no code is sent), the red light in “LED Definition 2” flashes slowly at 1 Hz for 5 times to indicate low power.

Combination key description

Combination keys	Features	Combination keys	Features
FN+F1	brightness-	FN+Space bar	Long press to check battery
FN+F2	Brightness+	FN+ECS	Long press for three seconds to restore factory

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help.
The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction