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Expected completion time of this lab:
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Unlike the other lab, the instructions of this lab are not step-by-step. They should rather be considered as a reference; your instructor will guide the work during this lab. |
Goal
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You are called in by a building manager who wants to turn his building into a "Smart Building". She wants to deploy a number of low-power wireless motes around her building, connected to sensors and actuators. She wants to be able to dynamically (re)configure the interactions between the nodes. For now, she wants the following interactions:
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Cheatsheets
OAP
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device
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action
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command
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temperature
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change period
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0500 02 ff0105 010400007530
note: 00007530 corresponds to 30s
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digital_out
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switch high
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0500 02 ff020302 000101
note: 02 corresponds to the LED
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switch low
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0500 02 ff020302 000100
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digital_in
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enable
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0500 02 ff020200 000101
note: 00 corresponds to D0 (pin DP2)
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disable
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get
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0500 01 ff020200
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enable notifications
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0500 02 ff020200 030101
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analog_in
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enable
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0500 02 ff020400 000101
note: 00 corresponds to pin AI_0
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disable
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0500 02 ff020400 000100
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get
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0500 01 ff020400
Wiring up the reed switch
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By convention, let's connect:
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Start by building the following circuit:
Gliffy name circuit_digital_in
Through {{APIExplorer}}Node-RED, communicate with your mote to:
enable the digital input
enable “on-change” notifications
Verify that you see notifications with different values.
Wiring up the buzzer
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By convention, let's connect the buzzer to GPIO digital_out/D4 (DC9003 pin I_MOSI) |
Start by building the following circuit:
Gliffy name circuit_buzzer
Through APIExplorer, communicate with your mote to switch the buzzer on/off.
MQTT
We will use the MQTT broker of HiveMQ, see http://www.hivemq.com/. All topic will start by "DustAcademy/".