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SCM series tutorial -1LED
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Application background
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Ultrasonic ranging LC1602 display experiment 2
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Application background At present, the measurement of the velocity and time of the wave propagation is generally used in the media. Common techniques areThree kinds of ultrasonic ranging for laser ranging and microwave ranging. Laser ranging. This is the use of laser monochromatic and phase transmissionThe speed of V is easily influenced by the air temperature, humidity, pressure and other factors, which is dry, strong, and so on.Achieve high-precision measurement and detection, such as the amount of length, distance, speed, angle, etc.. Handheld and portable rangingMeter, the distance is hundreds of meters to tens of kilometers. General application to remote measurement. Microwave radar ranging is the target of the use ofThe target was detected and its position was determined by the electromagnetic reflection.. Depending on the microwave radar, the target may be determinedAircraft, missiles, vehicles, buildings, rain etc.. Microwave ranging is generally applied to
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Key control LED Marquee
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Through the experiment to master the configuration method of CC2530 chip GPIO, master the principle of Led drive circuit and Led switch, master the use of keys, to achieve human-computer interaction
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Led flashing _ water light
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CC2530 chip GPIO configuration method through experiments, grasp the principle of Led Led drive circuit and switch operation iseedeadpeople of IO control 3 LED lights and all, blink, water light
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ZigBee basic experiments--GPIO output control expe
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CC2530 chip GPIO configuration method through experiments, take you step by step into the embedded gate, grasp the principle of Led Led drive circuit and switch. Try to see data sheet cc2530-datasheet.PDF Because led one-way electrical properties, that is, only in forward voltage (diode cathode and anode negative) conduction under light. Pins P1.0 light emitting diode (D1) the negative P1.0 pin output low level D1, P1.0 pin output level D1 is off.
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