[VicPiMakers Projects] Projects Digest, Vol 6, Issue 5

[Deid Reimer]

Hey George you need to start using DS18B20s to measure temperature. 

⁣Deid 
VA7REI​

On Dec 17, 2020, 12:00 PM, at 12:00 PM, projects-request at vicpimakers.ca wrote:
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>Today's Topics:
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>   1. Code for turkey stuffed with microprocessor. (George Bowden)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Wed, 16 Dec 2020 19:10:59 -0800
>From: George Bowden <gtbowdeng at gmail.com>
>To: "Talk about Raspberry Pi / embeded projects"
>	<projects at vicpimakers.ca>
>Subject: [VicPiMakers Projects] Code for turkey stuffed with
>	microprocessor.
>Message-ID:
>	<CAMon6WtuHHDwC_x=dcDe9vB6YmxR-j+dQ8P0zfcRiZxR+_gYiQ at mail.gmail.com>
>Content-Type: text/plain; charset="utf-8"
>
>Per Lynne's request to see the code, here it is
>
>Every few minutes, the microprocessor measures the temperature inside
>the
>turkey bag, posts the temperature to a website, and goes into deep
>sleep on
>top of the turkey.  (I was going to stuff the micro inside, but that is
>all
>frozen up tight)..
>
>Because the micro is only awake for a few seconds every 20 minutes, it
>will
>run for weeks off the battery, long after the turkey has thawed.
>
>The website receiving the post just appends the current local time()
>and
>data from the micro processor (humidity, temperature, ADC value) to a
>log
>file. The website replies to the micro with the number of minutes that
>the
>micro should sleep.  No jason, no mqtt, just php and html.  Webpage
>file is
>attached.. "fromdht.php"
>
>Here is a snippet of the temperature log
>
>1608169225 90.50 2.50 2704
>1608170427 90.70 2.50 2704
>1608171628 90.80 2.50 2703
>1608172830 91.00 2.50 2644
>
>The ADC reading is broken... I thought I could use a GPIO as the
>source voltage for the thermistor, so that I could turn it off when
>not needed, but it doesn't work yet.   Maybe need the gpio pin to turn
>on a mosfet to 3.3volts
>
>The Arduino .ino code file is also attached
>
>-- 
>
>George Bowden,
>gtbowdeng at gmail.com
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