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       <dc:date>2026-04-10T23:08:24+00:00</dc:date>
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        <title>youtube:andreas_spiess:esp8266_sensor_runs_17_days_on_a_coin_cell_transmits_data_to_sparkfun.com_and_ubidots.com</title>
        <link>https://www.wiki.leomartin.net/doku.php?id=youtube:andreas_spiess:esp8266_sensor_runs_17_days_on_a_coin_cell_transmits_data_to_sparkfun.com_and_ubidots.com&amp;rev=1502666994&amp;do=diff</link>
        <description>service pour l’envoi des données

	*  data.sparkfun
	*  ubidots
	*  adafruit.io

Batteries

	*  CR2032 : non, 8mA avec Wifi et CR2032 faites pour très faible courant (0.19mA)
	*  LIR2450 ~100mAh / 3.6V

sur ESP07, led red allumée en deepSleep, à dessouder, prend trop d’énergie. Pas de led du genre sur ESP12.</description>
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        <dc:date>2017-08-19T01:08:04+00:00</dc:date>
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        <title>youtube:andreas_spiess:how_to_use_the_rtc_memory_in_esp8266_and_reduce_power_consumption_by_factor_of_10_tutorial</title>
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        <description>How to use the RTC Memory in ESP8266 and reduce power consumption by factor of 10

Avec le deep-sleep, on perd ce qui est en mémoire, le programme reboot au bout de n temps.

On pourrait vouloir stocker des informations dans l’EEPROM, mais celle-ci, constitué de mémoire flash dans l’ESP8266, à un nombre limité de lectures/écritures (10000, à 30 écritures par heure, cela tiendrait 333 heures).</description>
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        <description>n°  titre  29  Internet of Things with ESP8266/Arduino IDE #1: Calling RESTful JSON Services 30  Internet of Things with ESP8266 #2: Physically Programming ESP-12  31  Internet of Things with ESP8266 #3: Interacting with your Smartphone  32  Internet of Things with ESP8266 #4: Upload Programs Over the Air (OTA) 33  Internet of Things with ESP8266 #5: Watchdogs, Timers &amp; Stability  47  Power Saving with ESP8266 (Sleep Mode) Tutorial with some Tricks  48  Connect ESP8266 with the world (and IFTT) …</description>
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        <dc:date>2017-08-14T01:06:45+00:00</dc:date>
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        <title>youtube:andreas_spiess:internet_of_things_with_esp8266_arduino_ide_1_-_calling_restful_json_services</title>
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        <description>Besoins pour l’iot

	*  connection simple à Internet (cette vidéo)
	*  interfacage simple avec un smartphone
	*  sleep mode pour augmenter la durée de vie sur batterie
	*  chargement du logiciel ota (over the air)

test : départs d’un système de transports en commun</description>
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        <dc:date>2017-08-14T00:35:47+00:00</dc:date>
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        <title>youtube:andreas_spiess:power_saving_with_esp8266_sleep_mode_tutorial_with_some_tricks</title>
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        <description>n°47 Power saving with 8266

	*  Modem-sleep (no wifi) : 15mA
	*  Light-Sleep : 0.9mA
	*  Deep-Sleep : 10uA
	*  Power-Off: 0.5uA

Modem Sleep

ne semble pas marcher si on utilise le WiFi, utilisable que si on ne s’en sert pas ?


WiFi.forceSleepBegin();
WiFi.forceSleepWake();</description>
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