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Archive for the ‘temperature-control’ Category

Photo20You'd think there'd be something like a dual set point thermostat on the market already, but it doesn't look like there is. Guess you'll just have to make one.

Read more on MAKE

The post Build a Dual Thermostat for Precise Preset Temperatures appeared first on Make: DIY Projects, How-Tos, Electronics, Crafts and Ideas for Makers.

Photo20You'd think there'd be something like a dual set point thermostat on the market already, but it doesn't look like there is. Guess you'll just have to make one.

Read more on MAKE

The post Build a Dual Thermostat for Precise Preset Temperatures appeared first on Make: DIY Projects, How-Tos, Electronics, Crafts and Ideas for Makers.

Mar
28

Arduino Controlled Cooling/Heating System for Beer Fermentation

arduino, ArduinoD14, beer, fermentation, Food & Beverage, homebrewing, tec, temperature-control Commenti disabilitati su Arduino Controlled Cooling/Heating System for Beer Fermentation 

FermentingTemperature control during fermentation is a key factor for the perfect homebrew—and is something that is mandatory if you would like to brew like a pro—and that's a perfect fit for the Arduino.

Read more on MAKE

blindMinder

Any opportunity to shave a few bucks off your power bill is probably worth considering, especially if it’s a device like [Steve Hoefer's] Mini Blind Minder. This little guy staves off (or welcomes) the sun by monitoring the room with a temperature sensor and checking against a setpoint. If the room is too warm or too cool, the top-mounted servo will spin the wand and close or open the blinds, respectively.

[Steve] started by building a homemade Arduino shield from some perfboard to which he added a handful of discrete components: some current-limiting resistors for the RGB LED indicator light and a 10k trim pot for fine-tuning the temp sensor. Although this build forgoes an LCD readout to display precise information, it does provide feedback by stepping the RGB LED’s color through a spectrum of blue to red to indicate how the current room temperature compares to your setpoint. The two momentary pushbuttons beneath the light allow the user to adjust the setpoint up or down.

See the video below for a detailed guide to building your own, and take a look at a similar automatic blinds build from earlier this year that opens and closes in response to ambient light.


Filed under: Arduino Hacks, home hacks

smsTempController

As connected as we are, reliable and affordable internet is still a luxury in the far reaches. [kohleick's] country home is not just remote; with temperatures dropping to -30C in the winter, it’s practically Arctic. His solution for controlling the thermostat from afar was to take advantage of the GSM network and implement a SMS-based heater controller. The unit typically operates in “antifreeze mode,” but sending a simple text message prior to visiting causes the heater to kick it up to a more comfortable setting for your arrival. Daily logs report the system’s status, and an alert will trigger when temperatures fall below a set limit, thus indicating potential faults with the heater.

The build uses a Freeduino paired with an external GSM modem for communication and an LCD to display current status and menus, which users access via three buttons on the side of the picture frame. [kohleick] connected two temperature sensors: one directly to the Freeduino’s shield and a second outside the house. After the temperature sensors detect deviance from the set point, or upon SMS instruction, the Freeduino will crank up the heat through a 5V relay attached to the home’s boiler. Head over to the Instructables page linked above for a bill of materials, schematics, and the code. The Siemens GSM modem in this build is nothing to worry about, but be careful if you try to reproduce this project with an Arduino GSM shield, or your house might really heat up.


Filed under: Arduino Hacks, Cellphone Hacks, home hacks, Microcontrollers


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