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Name: Around the world in 80 Microamps - ESP32 and LoRa for low-power IoT
--client lca --show lca2019 --room c2 14503 --force
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Author(s):	Christopher Biggs
Location	C2
Date	jan Wed 23	Days Raw Files
Start	13:30	First Raw Start	13:19
Duration	0:45:0	Offset	0:10:33
End	14:15	Last Raw End	14:19
Chapters	00:00 0:18:51
Total cuts_time	45 min.

https://2019.linux.conf.au/schedule/presentation/114/
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assets release.pdf Around_the_world_in_80_Microamps_ESP32_and_LoRa_for_lowpower_IoT.json
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Description:	Learn how to design and deploy battery powered IoT sensors that can go years between charges. You could be forgiven for thinking (as I did) that the proliferation of wireless IoT solutions means that implementing environmental monitoring is a simple process. Typically, everything goes swimmingly for the first two hours until your battery runs flat. Many wireless development boards (even the ones with built in battery chargers) are actually not well suited to ultra-low-power applications. Being truly wireless means (shock) no wires, not even for power. So we rely on battery, and perhaps solar. This brings a host of challenges: selecting the right battery, avoiding power-hungry components, coping with the limitations of a low-power radio platform like LoRa, learning the intricacies of deep-sleep modes, and choosing and using solar cells. This is a case-study and lessons-learned from a real project for IoT utility metering. What seemed like a simple problem led to a deep dive into ultra-low-power subsystems of modern IoT processors, and the practicalities of the LoRa radio platform. markdown
Comment:	production notes

2019-01-23/13_19_27.ts Apply: 13:19:27 - 13:30:36 ( 00:11:09 ) S: 13:19:27 - E: 13:49:27 D: 00:30:00 (End: 669.0) show more...

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	13:19:27		seconds: 0.0 Wall: 13:19:27
Duration	00:30:00
	13:49:27		seconds: 669.0 Wall: 13:30:36
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2019-01-23/13_19_27.ts Apply: 13:30:36 - 13:49:27 ( 00:18:51 ) S: 13:19:27 - E: 13:49:27 D: 00:30:00 (Start: 669.0) show more...

vlc ~/Videos/veyepar/lca/lca2019/dv/c2/2019-01-23/13_19_27.ts :start-time=0669.0 --audio-desync=0

	Raw File	Cut List
	13:19:27		seconds: 669.0 Wall: 13:30:36
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	13:49:27		seconds: 0.0 Wall: 13:19:27
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2019-01-23/13_49_27.ts Apply: 13:49:27 - 14:16:16 ( 00:26:49 ) S: 13:49:27 - E: 14:19:26 D: 00:29:59 (End: 1609.0) show more...

vlc ~/Videos/veyepar/lca/lca2019/dv/c2/2019-01-23/13_49_27.ts :start-time=00.0 --audio-desync=0

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	13:49:27		seconds: 0.0 Wall: 13:49:27
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	14:19:26		seconds: 1609.0 Wall: 14:16:16
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2019-01-23/13_49_27.ts Apply: 14:16:16 - 14:19:26 ( 00:03:10 ) S: 13:49:27 - E: 14:19:26 D: 00:29:59 (Start: 1609.0) show more...

vlc ~/Videos/veyepar/lca/lca2019/dv/c2/2019-01-23/13_49_27.ts :start-time=01609.0 --audio-desync=0

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	13:49:27		seconds: 1609.0 Wall: 14:16:16
Duration	00:29:59
	14:19:26		seconds: 0.0 Wall: 13:49:27
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mp4 mp4.m3u	dv.m3u	Split: Sequence:: delete

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2019-01-23/13_19_27.ts
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