A motorized window treatment may provide a low-cost solution for controlling the amount of daylight entering a space through a window. The window treatment may include a covering material (e.g., a cellular shade fabric or a roller shade fabric), a drive assembly for raising and lowering the covering material, and a motor drive unit including a motor configured to drive the drive assembly to raise and lower the covering material. The motorized window treatment may comprise one or more battery packs configured to receive batteries for powering the motor drive unit. The batteries may be located out of view of a user of the motorized window treatment (e.g., in a headrail or in a battery compartment). The motorized window treatment may use various power-saving methods to lengthen the lifetime of the batteries, e.g., to reduce the motor speed to conserve additional battery power and extend the lifetime of the batteries.

Methods and apparatus to control an architectural opening covering assembly are disclosed herein. An example system includes a first architectural opening covering assembly to identify a first position of a first covering as a first reference position in response to a first command to store a first speed at which the first assembly is to be driven. The first assembly is to operate a first motor to move the first covering at the first stored speed in response to a second command. The example system includes a second architectural opening covering assembly to store a second speed at which the second covering is to be driven in response to a third command. The second assembly is to operate a second motor at the second stored speed in response to a fourth command to move the second covering.

A motorized window treatment for controlling the amount of daylight entering a space through a window includes a covering material, a drive shaft, and a motor coupled to the drive shaft for raising and lowering the covering material. The window treatment also includes a spring assist unit for assisting the motor by providing a torque that equals the torque provided by the weight on the cords that lift the covering material at a position midway between fully-open and fully-closed positions to minimize motor usage and conserve battery life. The window treatment may comprise a photosensor for measuring the amount of daylight outside the window and temperature sensors for measuring the temperatures inside and outside of the window. The position of the covering material may be automatically controlled in response to the photosensor and the temperature sensors, or in response to an infrared or radio-frequency remote control.

A dual control architectural covering is disclosed. A dual control architectural covering includes a clutch to disengage a motor when the motor is not in use. The dual control architectural covering further includes a manual control to move the covering of the architectural opening while the motor is disengaged. The dual control architectural covering further includes a braking element to resist movement of a drive element of the covering when the motor is disengaged.

A battery-powered motorized window treatment for covering at least a portion of a window may be adjusted into a service position to allow for access to at least one battery that is powering the motorized window treatment. A headrail of the motorized window treatment may be adjusted to the service position to allow for easy replacement of the batteries without unmounting the headrail and without requiring tools. The motorized window treatment may comprise brackets having buttons that may be actuated to release the headrail from a locked position, such that the head rail may be rotated into the service position. The headrail easily rotates through a controlled movement into the service position, such that a user only needs one free hand available to move the motorized window treatment into the service position and change the batteries.

Methods and apparatus to control an architectural opening covering assembly are disclosed herein. An example system includes a first architectural opening covering assembly to identify a first position of a first covering as a first reference position in response to a first command to store a first speed at which the first assembly is to be driven. The first assembly is to operate a first motor to move the first covering at the first stored speed in response to a second command. The example system includes a second architectural opening covering assembly to store a second speed at which the second covering is to be driven in response to a third command. The second assembly is to operate a second motor at the second stored speed in response to a fourth command to move the second covering.

A motor drive unit for driving a motor of a motorized window treatment may comprise software-based and hardware-based implementations of a process for detecting and resolving a stall condition in the motor, where the hardware-based implementation is configured to reduce power delivered to the motor if the software-based implementation has not first reduced the power to the motor. A control circuit may detect a stall condition of the motor, and reduce the power delivered to the motor after a first period of time from first detecting the stall condition. The motor drive unit may comprise a stall prevention circuit configured to reduce the power delivered to the motor after a second period of time (e.g., longer than the first period of time) from determining that a rotational sensing circuit is not generating a sensor signal while the control circuit is generating a drive signal to rotate the motor.

A motorized window treatment system is provided for moving a covering material (e.g., a shade fabric). The motorized window treatment system includes a motor drive circuit configured to generate signals that cause a motor to change a position of the covering material. A sensor circuit is provided to generate one or more sensor signals indicative of the position of the covering material. The motorized window treatment system further includes a control circuit coupled to the sensor circuit to receive the one or more sensor signals. The control circuit is configured to detect a power-down event when a supply voltage is equal to or less than a threshold value, and stores a power-down position and one or more power-down sensor states. The control circuit is configured to determine a present position based on the stored power-down position and the one or more power-down sensor states.

Programmable and removable automatic motorized roller shade with color LED night lights is a fully automatic programmable motorized window shade incorporates many functionalities including automatic shade open and close, automatic programmable shade position or shade length position, foldable and removable tubular tubes, rechargeable and programmable wireless remote controls, built-in matching color LED night lights and easy removable color shade fabric. The system automatically open and close depending on the programming parameters, software timers and the light level detects through the photoresistor sensor which is programmed and controlled by the micro controller. The system consisting of two or more tubular tubes joined together with at least one set of quick connecting and disconnecting couplings creating a single removable and foldable tubular tube. The number of tubular tubes and couplings needed to create a single tubular tube are depending on the physical window width the shade fabric intents to cover. The built-in internal color LED night lights, external color LED night lights and matching removable color shade fabric brings to life an exciting colorful environment in the dark of night. Rechargeable lithium batteries provide necessary continuous backup power and programmable wireless receiver provides manual and wireless remote controls programming and manually operating of the system.

A motorized window shade system may comprise a shade tube in a pocket; a window shade attached to the shade tube; a motor configured to rotate the shade tube; an internal temperature sensor configured to measure a first temperature of the motor; an external temperature sensor configured to measure a second temperature of the pocket; and a controller configured to adjust a mode of the system from an override mode to an automated mode.