Wifi spark core

Bill of Materials. Pin mapping. View code. Releases 6 Spark Core v0. Aug 15, Packages 0 No packages published.

Contributors 8. You signed in with another tab or window. It loops forever, making it an infinite pattern. Each timeslot is made up of a unique connection. A schedule is static and is configured only at initialization.

Hence, it is not possible to update or reconfigure the schedule while an application is running. The illustration above shows a basic schedule which enables bi-directional communication between two devices. Information is in one direction during the first timeslot, and in the other direction during the second timeslot.

The schedule repeats indefinitely. A connection is defined by a unidirectional link between a source address and a destination address. One device can have one or multiple connections. Since a connection is unidirectional, two connections are necessary to have a bidirectional link between two given devices.

For a device to send data, a connection must be associated with one or more timeslots inside the schedule. A connection between two devices will share the same network configuration. Within this configuration, a payload queue is assigned to the connection. If the destination address is 0xFFFF, the transmitting device communicates with every device within reach. Figure 4: Connection within Timeslots and Broadcast.

The figure above shows three unique connections in the three timeslots forming the schedule. The first connection shows a data transfer between transmitting device at source address 0xCD02 and receiving device at destination address 0xAAAA. The second connection shows a data transfer between transmitting device at source address 0xCD01 and receiving device at destination address 0xAAAA. It can be observed that it is the same device 0xAAAA receiving data from both transmitters. The third connection shows a data transfer between transmitting device at source address 0xAAAA and two receiving devices at destination address 0xCD01 and 0xCD This is because the broadcast subnetwork specified by 0xCDFF was used as the destination address.

This broadcast mechanism can be used for basic communication or to create a beacon connection. A beacon is a special connection used only for synchronization purposes. The beacon is broadcasted over-the-air at a specific time by a single device, assigned to the role of coordinator. Other devices in the network must use the beacon as a time reference to determine the time location of timeslots.

The beacon is used to compensate for any clock drift between devices and stay synchronized to a TDMA schedule. The beacon connection needs to be configured by the user like any other connection.

The API requires a connection, a payload, and the size of that payload. The payload will be automatically forwarded to its destination at the next available timeslot for the required connection. The WPS offers great flexibility when it comes to designing a schedule. It enables the ability to configure a point-to-point network topology between two devices or configure a star network topology containing many devices.

Every device knows when they should be listening and when they should transmit since all the devices inside a network follow the same schedule. The Core will go through the following sequence of lights:.

Your Core is now connected to the Spark. All this means is that you will need to take ownership of your Core by loggin into the Spark Cloud. Thanks mate, my newly arrived photon's weren't as simple to setup as the original Core kickstarter. Your putty steps in the previous instructable worked great. Reply 6 years ago on Introduction. I just got mine Friday, have not had time to play with them yet. Got two online classes, my Viper boards and Photon prototyping boards to do and play with at the same time.

More by the author:. Smartconfig is used to pass wifi details to the core in the spark app, and TexasInstruments provide a sample app that you can modify. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 7 years ago. Active 6 years, 10 months ago.

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