Differences
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iothings:laboratoare:2025:lab5 [2025/10/22 11:33] dan.tudose [Zigbee Router + End Device] |
iothings:laboratoare:2025:lab5 [2025/10/28 11:35] (current) dan.tudose [Switch as a Sleepy ED] |
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| - | ====== Lab 5. Zigbee ====== | + | ====== Lab 5. Zigbee Networking ====== |
| Zigbee is a low‑power, low‑data‑rate wireless protocol for building sensor/actuator networks (home automation, smart energy, lighting, industrial monitoring). It sits on top of IEEE 802.15.4 radios and adds networking, security, and application profiles. | Zigbee is a low‑power, low‑data‑rate wireless protocol for building sensor/actuator networks (home automation, smart energy, lighting, industrial monitoring). It sits on top of IEEE 802.15.4 radios and adds networking, security, and application profiles. | ||
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| [[iothings:laboratoare:2025_code:lab5_2|Click here to get the code for this example.]] | [[iothings:laboratoare:2025_code:lab5_2|Click here to get the code for this example.]] | ||
| + | ====== Switch as a Sleepy ED ====== | ||
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| + | The previous example has the downside that the ED can be battery powered, but the code is not particularly optimized for energy saving. As a regular user will not press the switch more that a dozen times a day, it makes a lot of sense to keep the switch ED in deep sleep and wake only when the button is pressed. waking from deep sleep equates to having a hardware reset, so we will need to persist switch logic into the non-volatile RTC memory. This is all handled in the code below. | ||
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| + | [[iothings:laboratoare:2025_code:lab5_3|Click here to get the code for this example.]] | ||
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| + | <note>**Assignment 1:** | ||
| + | Use the on-board BME680 sensor to switch lights on/off depending on the switch temperature instead of pushing a button. For example, if the temperature is above 25 degrees C, the light should turn on. | ||
| + | </note> | ||
| + | |||
| + | <note>**Assignment 2:** | ||
| + | Encode more than simple on/off behavior from the switch. For example, a press toggles, and a hold dims up/down. Add a long-press detector on GPIO 9 and send MoveWithOnOff / Stop commands; on the bulb, implement Level Control callbacks to set NeoPixel brightness with transition times. | ||
| + | </note> | ||
| + | |||
| + | <hidden> | ||
| + | Pentru asistenți: la laboratorul ăsta o să aveți nevoie de un gateway Home Assistant cu stick Zigbee Coordinator atașat. Dacă nu aveți așa ceva, întrebați-l pe Dan Tudose. | ||
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| + | </hidden> | ||
