What power needs the
- Adafruit HUZZAH ESP8266 vs.
- Adafruit Feather ESP8266 vs.
- ESP8266 SMT Module
in deep sleep? In the wild you can find 10 uA http://bbs.espressif.com/viewtopic.php?t=133 for a bare bone ESP. The HUZZAH ESP8266 has an additional voltage regulator. What does it and the additional parts on the board consume? On the Feather is an additional USB-Serial converter and a Lipo charger but I read also that the voltage regulator (??) can be switched off, the voltage regulator or USB-converter and other parts also?
So what is the best Adafruit ESP board for ultra low power? I want to run it with sensor readings once a day and transmission as long as possible, best a year.
An additional suggestion: The charger on board is great but e.g. a CN3065 Lithium Battery AND Solar Charger would be a more universal solution. The CN3065 is used for example in Seeeduino's data logging board "Stalker".
ESP6288 ultra low power
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Please be positive and constructive with your questions and comments.
- clemens
- Posts: 41
- Joined: Fri Jan 06, 2012 12:21 am
Re: ESP6288 ultra low power
Oh, this sounds not good: viewtopic.php?f=53&t=78281&p=396789
I also noticed that after calling
the red LED is light dimming, after the triggered reset it is totally switched off shortly and also between blinking the LED is totally dark and off. Hmm, how can I influence the status of the LED in the deepSleep mode? Why is it not totally switched off and consumes so power?
My test sketch:
I also noticed that after calling
Code: Select all
ESP.deepSleep(1000000 * 10, WAKE_RF_DEFAULT); // 1000000 * sleepTimeS *
My test sketch:
Code: Select all
int ledPin = 0; // LED is attached to ESP8266 pin 5.
void setup(){
pinMode(ledPin, OUTPUT); // Set LED pin (5) as an output
for (int i=0; i < 5; i++){
digitalWrite(ledPin, HIGH); // turn the LED on (HIGH is the voltage level)
delay(250); // wait for a second
digitalWrite(ledPin, LOW); // turn the LED off by making the voltage LOW
delay(250); // wait for a second
}
digitalWrite(ledPin, LOW);
ESP.deepSleep(1000000 * 10, WAKE_RF_DEFAULT); // 1000000 * sleepTimeS *
}
void loop(){
// intentionally left blank
}
- clemens
- Posts: 41
- Joined: Fri Jan 06, 2012 12:21 am
Re: ESP6288 ultra low power
Ok, for the red dimming LED the reason is a missing pullup in the board design
viewtopic.php?f=53&t=86178&p=434123&hil ... ep#p434123
viewtopic.php?f=53&t=86178&p=434123&hil ... ep#p434123
Please be positive and constructive with your questions and comments.