Semiconductor refrigeration experiment, it only takes a few minutes to drop from room
https://youtu.be/x_Gr5dRMUQs
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I made a gear pump for him today to see how it works.
https://www.youtube.com/watch?v=ROxacqsj6OM
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Explore the control method of one port controlling two parallel servos
https://www.youtube.com/watch?v=d1uJD9NhIt0
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How to use the brushless motor control board to drive and test the brushless motor
https://youtu.be/jUJgPqSafCw https://www.sinoning.com/product/small-brushless-motor-brushless-low-power-motor/
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Use the brushless motor control board to drive and test the brushless motor
https://youtu.be/0VWZpnn4k30
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Test to explore the principle and pumping effect of
https://youtu.be/Qeot5oe21gA https://www.sinoning.com/product/dc3-7v-electric-piston-water-pump-some-motors-are-rusty/
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arduino nrf2401 to control four-way steering gear or ESC or motor
https://youtu.be/0U0ZQKM7ID8
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F450 self-made quadcopter drone take-off and landing demonstration
https://youtu.be/sDe3bZsMN3k
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