Abstract: The description relates to prototyping systems, including hubs for electrically connecting devices. One example can include an electrically insulative substrate and at least two connector tabs defined by the substrate. Each connector tab can include a data contact a power contact and a ground contact positioned on the substrate. A data bus can be positioned relative to the substrate and electrically connect all of the data contacts, a power bus can be positioned relative to the substrate and electrically connect all of the power contacts and a ground bus can be positioned relative to the substrate and electrically connect all of the ground contacts in accordance with a first prototyping format. The example can also include adapter contacts positioned on the substrate and configured to electrically connect to a data contact, a power contact, and a ground contact of another device that complies with a second different prototyping format.

Abstract: The description relates to prototyping systems, including hubs for electrically connecting devices. One example can include an electrically insulative substrate and at least two connector tabs defined by the substrate, each connector tab including a data contact, a power contact, and a ground contact positioned over the substrate. A data bus can be positioned relative to the substrate and electrically connect all of the data contacts, a power bus can be positioned relative to the substrate and electrically connect all of the power contacts, and a ground bus can be positioned relative to the substrate and electrically connect all of the ground contacts.

Abstract: An external device, such as a head-mountable device, can be operated with a ring input device worn on a finger of a user. Such devices can be operated to provide inputs that are received and acted upon by the external device. The inputs can be provided as rotating, tilting, and/or sliding at least a portion of the ring input device with another finger of the user. The ring input device can provide feedback to the user as confirmation that the inputs are being received. A feedback system can also be operated to limit or otherwise provide a force on the finger and/or another portion of the hand to simulate sensations perceived by the user.

Abstract: The invention provides an indoor air quality monitor (10) which has: a housing (12) providing an air intake (24) leading via a flow path, which is formed within the housing and which comprises a flow chamber (70), to an air outlet (28); a fan arranged to M propel air from the air intake (24) through the flow path to the air outlet (28); at least one sensor (56, 58, 60, 62) which is for sensing at least one air pollutant, the sensor (56, 58, 60, 62) being exposed to air in the flow chamber (70); and an air guide arrangement (46, 48, 64, 66, 74) which is downstream of the air intake (24) in the flow path and which forms a plurality of flow passages (76, 78, 80) through each of which air passes in operation of the indoor air quality monitor to reach the flow chamber (70).

Abstract: An external device, such as a head-mountable device, can be operated with a ring input device worn on a finger of a user. Such devices can be operated to provide inputs that are received and acted upon by the external device. The inputs can be provided as rotating, tilting, and/or sliding at least a portion of the ring input device with another finger of the user. The ring input device can provide feedback to the user as confirmation that the inputs are being received. A feedback system can also be operated to limit or otherwise provide a force on the finger and/or another portion of the hand to simulate sensations perceived by the user.

Abstract: A head-mountable device can be operated with devices worn on wrists, arms, hands, and/or other limbs of a user. Such devices can provide indicators that allow a head-mountable device to determine both an identity and a characteristic (e.g., position, orientation, distance, etc.) of the devices and therefore the user. The information regarding the tracking devices and/or the hands can be used to produce a virtual representation of the hands or otherwise be used to receive and interpret gestures as user input. The devices that facilitate such tracking can be worn in a variety or arrangements depending on whether the tracking is to be performed. As such, they can be compactly stored in a manner that allows them to be readily accessible for deployment.

Abstract: An external device, such as a head-mountable device, can be operated with a ring input device worn on a finger of a user. Such devices can be operated to provide inputs that are received and acted upon by the external device. The inputs can be provided as rotating, tilting, and/or sliding at least a portion of the ring input device with another finger of the user. The ring input device can provide feedback to the user as confirmation that the inputs are being received. A feedback system can also be operated to limit or otherwise provide a force on the finger and/or another portion of the hand to simulate sensations perceived by the user.