Thermoelectric System
A Hands-On semiconductor cooling system combining hardware and circuit design
This is a tangible and comprehensive DIY project centered around temperature control. Backers who purchased our Lab-On-The-Go or other learning kits may find this one particularly engaging, as it relates you to topics such as semiconductors, power, sensors, and microcontrollers. With hands-on, tangible components, you can also dive deeper into embedded programming and real-world applications. The assistance of common AI tools like ChatGPT, Copilot, and Gemini, learning becomes even more interactive and accessible.
Projects in this Kit
Thermodynamics
We use a thermoelectric cooling module (TEC) to create a cold surface by absorbing heat; this hands-on approach helps us to directly relate the concepts learned in theory to practical, real-world applications.
Basic Power Electronics
We built a MOSFET-based current switch board that can be used to pass high current with a low voltage control signal (3.3V). We will also briefly cover the concepts of Low Dropout Regulator (LDO), which is a important and practical topic in DC-DC converters.
Microcontroller Circuits
The principles discussed in this book will primarily pertain to the Raspberry Pi RP2040 family, though many of the concepts are applicable to other microcontrollers as well.
Analog Sensors and ADC
We use an NTC thermistor and a voltage divider circuit to convert the thermistor's resistance change into a corresponding voltage signal. The output signal can then be accurately measured by the ADC input for further processing in the next stage of the system.
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