3 questions from a newbie

gavpret · May 4, 2016, 10:36pm

Hi.
As the subject say I have 3 questions about Photon, that I will appreciate if someone could answer:

ADC
"The function setADCSampleTime(duration) is used to change the default sample time for analogRead()."
And the default sample time is…
FIRMWARE
"System.disableUpdates()
Disables OTA updates. An attempt to start an OTA update will fail."
This will disable the Particle firmware updates or my firmware updates or both?
Can I only enable my firmware updates and only my?
CLOUD VARIABLES
Could I force the update of the cloud variables at any moment? Not sure how this works. I did some tests
and found variables being refreshed with intermediate results. Can I declare that a variable is ready to be
"uploaded"

Thank you very much.

kennethlimcp · May 5, 2016, 2:26am

1.) Not sure if i’m right but it should be ADC_SampleTime_480Cycles

particle-iot/firmware/blob/9a99ba61c7b6399ccdf8a1238d05803beb7bd1ee/hal/src/stm32f2xx/adc_hal.c

/**
 ******************************************************************************
 * @file    adc_hal.c
 * @authors Satish Nair
 * @version V1.0.0
 * @date    22-Dec-2014
 * @brief
 ******************************************************************************
  Copyright (c) 2013-2015 Particle Industries, Inc.  All rights reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation, either
  version 3 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

This file has been truncated. show original

2.) No one is authorized to update your firmware without using your account and deliberately performing an OTA update.

Particle will only handle the OTA of system firmware when the user firmware and current system firmware on the Photon mismatches, nothing else.

3.) Cloud variables are “polled/pulled”. Which means it reads the value of the variable declared for the particular Cloud variable and sends it to the .

gavpret · May 5, 2016, 3:12pm

Thank you very much for your kind and quick reply!

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3 questions from a newbie

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