#Partical io serial library how to#
#Partical io serial library Bluetooth#

To my surprise it took 300 millisecondsВ to send a message on my local network almost the same time as it took when communicating over the Particle Cloud. Luckily there is the Webduino library.В It makes use of the existing TCPServer and TCPClient functions on the Photon and adds the HTTP layer on top of that.В IвЂ™ve forked and updated the library ported by Matthew McGowan, because I noticed that in the previous version communication was slowed-down because of some kind of bug in the Particle Core. For the SoftAP configuration page this is already used, but that only works in Listen mode. Maybe it will come a the near future, because WICED (the Broadcom SDK for the microchip on the Particle Photon) implements a HTTP server (Adafruit implemented this HTTP-APIВ for their WICED feather WiFi). Set up the callback function.The idea is to run a small webserver on the Photon.В Unfortunately there isnвЂ™t yet an HTTP server available in the Particle API. Right after defining the characteristics, letвЂ™s add them so they show up: // Add the characteristicsД«LE.addCharacteristic(redCharacteristic) Д«LE.addCharacteristic(greenCharacteristic) Д«LE.addCharacteristic(blueCharacteristic) In this case weвЂ™re going to use the already available UUIDs. The only way we can know which characteristic was written to (in deviceOS at least) is by setting a context. What does this mean exactly? WeвЂ™re using the same callback for all three characteristics. When data is written to this callback, this function will fire.ДЇinally the last parameter is the context. The next parameter is the callback function. IвЂ™ve referenced the UUIDs as the next two parameters. This allows us to write the data and expect no response. Initialize each characteristic in Setup() BleCharacteristic redCharacteristic('red', BleCharacteristicProperty::WRITE_WO_RSP, red, serviceUuid, onDataReceived, (void*)red) Д«leCharacteristic greenCharacteristic('green', BleCharacteristicProperty::WRITE_WO_RSP, green, serviceUuid, onDataReceived, (void*)green) Д«leCharacteristic blueCharacteristic('blue', BleCharacteristicProperty::WRITE_WO_RSP, blue, serviceUuid, onDataReceived, (void*)blue) ДЇor this setup, weвЂ™re going to use the WRITE_WO_RSP property. This is the first step of вЂњregistering' your service. If you do want to double check you can go here and here.ДЇor now, weвЂ™ll stick with the first set of UUIDs.

#Partical io serial library Bluetooth#

But you have to be careful youвЂ™re not using the UUIDs reserved by the Bluetooth SIG.

ThereвЂ™s no right or wrong way to do this. The characteristics increment from there. That way we start with a nice clean suffix of 0. You can then create your service and characteristic UUIDS. Use the above settings to get your own UUID. You can also go to a website like Online GUID Generator. You can use uuidgen on the OSX command line. (Primarily for the Nordic UART Service) You should create your own. The above UUIDs are used in previous Particle examples. TheyвЂ™re used to differentiate different services and characteristics on a device. UUIDs are unique identifiers or addresses. In your Setup() function enable app control of your LED RGB.control(true)

The characteristics relate to the intensity of the RGB LEDs respectively. We want to set up a service with 3 characteristics. Then make sure you change the version of your deviceOS to > 1.3.0 Go to your /src/ directory and open your. I picked a suitable location and then named it ble_mesh Stage 1: Setting Up BluetoothД¬reate a new Project. If you want something to download, click here for a a beautifully formatted PDF. WeвЂ™ll configure some LEDs and watch them change over all devices in the Mesh network.

#Partical io serial library how to#

In this walkthrough, iвЂ™ll show you how to use ParticleвЂ™s Bluetooth API. The Particle Mesh Bluetooth Library is no exception. Since then itвЂ™s gotten easier and easier to develop. That was during the early days of Bluetooth Low Energy. I had spent the whole night trying to get a Bluetooth Low Energy project working.