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Explore three of the cheapest Arduino alternatives suggested by viewers in this informative video. Learn about the features, pricing, programming ease, and Arduino IDE compatibility of the CH32V003, LGT8F328P, and STM8S103 microcontrollers. Follow along as two test circuits are created to evaluate each option. Discover the pros and cons of the CH32V003 as the most affordable choice, the LGT8F328P as an Arduino Nano "clone," and the STM8S103 as a middle-ground option. Gain insights into the programming process, available resources, and overall performance of these budget-friendly microcontrollers. Conclude with a verdict on which alternative might best suit different project needs and skill levels.