team 58: tobias zhao, owen sun, naomi peng smart-kettle
TRANSCRIPT
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Smart-Kettle-ModuleTA: Dean Biskup
Team 58: Tobias Zhao, Owen Sun, Naomi Peng
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Introduction
The project is a portable Smart-Kettle-Module that is designed to improve user’s experience with kettles.
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ObjectiveProblem:
The functions of kettles existing in the market are not ideal enough.
● Requires users to wait for filling water.
● Unknown boiling time.
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ObjectiveSolution:
We propose a kettle-module that has three main features
● Enables the kettle to be filled with water automatically. (mode1)
● Displays the remaining time to reach the target temperature on an LCD screen. (mode2)
● The time of keeping warm is also controllable. (mode3)
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Design
Block Diagram
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Design
Physical Diagram
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DesignActual project
The Kettle
Control Unit circuit
PowerRelay
LCD display
Water Tank with the pump
Weight sensor is below the kettle
Probe of the temperature sensor is inside the kettle
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Design
Flowchart
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Control unitTwo main functions:
Three timers:
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Unit Test & RV
Component Unit Test:Associated with the arduino code closely.
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Unit Test & RV
LCD Requirements:● Display at the designed location● Display the same data showed on
the Serial monitor with no delay
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Unit Test & RV
HX711 Weight Sensor● Operation supply voltage range: 2.6 ~ 5.5V● Operation temperature range: -40 ~ +85℃
Requirements:● Be able to scale weight with +- 10g error within the weight
range (0-20kg)
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Unit Test & RV
Requirements:● Needs to be waterproof. ● The accuracy of the sensor should be within ± 2 °C
when operating in temperature range.
DS18B20 Temperature Sensor● Measures Temperatures from -55°C to +125°C● ±0.5°C Accuracy from -10°C to +85°C● Voltage Range on Any Pin Relative to Ground: -0.5V to +6.0V
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Unit Test & RV
IoT Power Relay 5VDC Power Relay
Always ON
Normally ON
Normally OFF
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Challenge
● PCB design● Probe
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Success
● The design is fully functional as intended.● The remaining time calculation is accurate.● The overall appearance is clean and tidy.
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Conclusion
Thank you! :)