Experiment

Časová dotace: 10 min.

IoT tlačítkem ovládáme LED pásek

Popis experimentu

V rámci experimentu budeme ovládat LED pásek pomocí tlačítka a na základě naměřené teploty. Naučíme se také pracovat s RGB barevným modelem.

Kroky experimentu

Postavení tlačítka
Postavení ovladače LED pásku
Připojení tlačítka k Playgroundu
Nastavení funkce ovládání LED pásku

Postavení tlačítka

Moduly v sestavě:

Core Module
Mini Battery Module
Push Button Module

Postavte si jednotku podle videonávodu:

Postavení ovladače LED Pásku

Moduly v sestavě:

Core Module
Power Module
LED Pásek

Postavte si jednotku podle videonávodu:

Připojení jednotek do Playgroundu

(Pokud ještě aplikaci nemáte ve svém počítači, tak si ji prosím stáhněte a nainstalujte)

Zasuňte do USB portu svého počítače Radio Dongle
Otevřete aplikaci Playground a běžte na záložku Devices
Vyberte váš Radio Dongle v nabídce USB zařízení a klikněte na Connect
Klikněte na Start pairing
Vložte do tlačítka baterie a v seznamu zařízení se vám objeví nové s označením push-button:0
Znovu klikněte na Start pairing
Připojte adaptér k ovladači LED pásku do zásuvky. V seznamu zařízení se vám objeví nové s označením power-controller:0.

Pokud se v seznamu objevilo nové zařízení, ale má jiné označení, bude potřeba do něj nahrát správný firmware. Jak na nahrávání firmware se podívejte do tohoto návodu. Pro tlačítko potřebujete firmware twr-radio-push-button a pro ovladač LED pásku twr-radio-power-controller.

Nastavení funkce zobrazení počtu zmáčknutí a teploty tlačítka

Přepněte se na záložku Functions
Proveďte import flow:

[{"id":"e1c78aec22a2b30f","type":"tab","label":"IoT button","disabled":false,"info":""},{"id":"df77fa76ec57b83c","type":"mqtt in","z":"e1c78aec22a2b30f","name":"","topic":"node/push-button:0/push-button/-/event-count","qos":"2","datatype":"auto","broker":"a382db22.fb11e8","inputs":0,"x":200,"y":180,"wires":[["f459f618531641e5"]]},{"id":"db42bc1c50d5c6bf","type":"mqtt in","z":"e1c78aec22a2b30f","name":"","topic":"node/push-button:0/thermometer/0:1/temperature","qos":"2","datatype":"auto","broker":"29fba84a.b2af58","inputs":0,"x":210,"y":360,"wires":[["f285b637e508b347"]]},{"id":"f285b637e508b347","type":"ui_text","z":"e1c78aec22a2b30f","group":"57ff470b.93fdf8","order":3,"width":0,"height":0,"name":"","label":"Temperature","format":"{{msg.payload}}°C","layout":"row-spread","className":"","x":550,"y":360,"wires":[]},{"id":"f459f618531641e5","type":"ui_text","z":"e1c78aec22a2b30f","group":"57ff470b.93fdf8","order":4,"width":0,"height":0,"name":"","label":"Counter","format":"{{msg.payload}}","layout":"row-spread","className":"","x":540,"y":180,"wires":[]},{"id":"a382db22.fb11e8","type":"mqtt-broker","name":"","broker":"127.0.0.1","port":"1883","clientid":"","autoConnect":true,"usetls":false,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closeQos":"0","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""},{"id":"29fba84a.b2af58","type":"mqtt-broker","name":"","broker":"127.0.0.1","port":"1883","clientid":"","autoConnect":true,"usetls":false,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""},{"id":"57ff470b.93fdf8","type":"ui_group","name":"Default","tab":"11207769.c31889","order":1,"disp":true,"width":"6","collapse":false},{"id":"11207769.c31889","type":"ui_tab","name":"Home","icon":"dashboard"}]

Klikněte na tlačítko Deploy vpravo nahoře.
Přepněte se na záložku Messages, pokud vše proběhlo správně, tak byste měli vidět příchozí zprávy z jednotky (push-button)
Přepněte se na záložku Dashboard, pokud vše proběhlo správně, tak byste měli vidět počet zmáčknutí tlačítka a jeho teplotu

Pozn.: 1. Pro urychlení odeslání dat na tlačítko dýchněte 2. Jednotka měří teplotu a data o teplotě odesílá do systému každých 15 min., a o zmáčknutí okamžitě 3. Jednotka odešle data ihned, pokud dojde mezi dvěma měřeními teploty k nárustu vyššímu než 0,2°C.

Nastavení funkce ovládání LED pásku

Přepněte se na záložku Functions
Proveďte import flow:

[{"id":"b0e6a61052f6464e","type":"tab","label":"LED controler","disabled":false,"info":""},{"id":"c150a9bf93daec3d","type":"mqtt out","z":"b0e6a61052f6464e","name":"","topic":"node/power-controller:0/led-strip/-/color/set","qos":"","retain":"","respTopic":"","contentType":"","userProps":"","correl":"","expiry":"","broker":"54516ae2.8f3d14","x":910,"y":120,"wires":[]},{"id":"c1d16ecd5e7996a6","type":"mqtt in","z":"b0e6a61052f6464e","name":"","topic":"node/push-button:0/push-button/-/event-count","qos":"2","datatype":"auto","broker":"54516ae2.8f3d14","nl":false,"rap":false,"inputs":0,"x":200,"y":120,"wires":[["dc7bbeb8ef8e5bea"]]},{"id":"0e2d5607022ff3d2","type":"mqtt in","z":"b0e6a61052f6464e","name":"","topic":"node/push-button:0/thermometer/0:1/temperature","qos":"2","datatype":"auto","broker":"54516ae2.8f3d14","nl":false,"rap":false,"inputs":0,"x":210,"y":200,"wires":[["421ceca3a1e659e6"]]},{"id":"e3fdded3dab459dd","type":"change","z":"b0e6a61052f6464e","name":"Color change","rules":[{"t":"set","p":"payload","pt":"msg","to":"\"#FF0000\"","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":640,"y":200,"wires":[["c150a9bf93daec3d"]]},{"id":"421ceca3a1e659e6","type":"switch","z":"b0e6a61052f6464e","name":"Condition","property":"payload","propertyType":"msg","rules":[{"t":"gt","v":"25","vt":"num"}],"checkall":"true","repair":false,"outputs":1,"x":480,"y":200,"wires":[["e3fdded3dab459dd"]]},{"id":"dc7bbeb8ef8e5bea","type":"change","z":"b0e6a61052f6464e","name":"Color change","rules":[{"t":"set","p":"payload","pt":"msg","to":"\"#0000FF\"","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":640,"y":120,"wires":[["c150a9bf93daec3d"]]},{"id":"54516ae2.8f3d14","type":"mqtt-broker","name":"","broker":"localhost","port":"1883","clientid":"","autoConnect":true,"usetls":false,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""}]

Klikněte na tlačítko Deploy vpravo nahoře.
Přepněte se na záložku Messages, pokud vše proběhlo správně, tak byste měli vidět příchozí zprávy z ovladače (power-controller)
Flow je nyní nastavena tak, že po překročení teploty nad 25 °C změní barvu LED pásku na červenou a po stisknutí tlačítka se změní barva na modrou.
Pokud vše proběhlo správně, tak byste měli měnit barvu LED pásku podle zadané barvy.

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Last updated 2 years ago

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