/Two-Motors-With-L293D-and-Eye-Led-of-Robotic-Tinkercad-

Primary LanguageC++

Two Motors With L293D and Eye Led of Robotic (Tinkercad)

1. Two Motors With L293D

  • This circuit is just about controlling Two Motors by L293D. Simply:)

    • Battery: To calculate how long a battery will last, we need two figures; the battery’s capacity and how much current will be drawn by the motor. Batteries measure their capacity in milliamp hours, mAh. This states how many hours the battery can supply 1 mA of current, or how many mA of current it can supply for one hour.The current draw depends on the motor, for this, we can refer to the datasheets found on the product pages. The Typical Performance Characteristics graph shows how the current varies with the input voltage (vibration motors) or with the torque load (DC and gearmotors, at rated voltage). Not all batteries are created equal, make sure the voltage is at an appropriate level. For example, while a 3V motor will likely run from a 1.5V AA battery but you will get better performance connecting two AA batteries in series to create a 3V supply. Conversely, if the motor is rated at 1.5V using a 3V battery runs the risk of immediate damage the motor (as would anything above the Maximum Operating Voltage).The reduced voltage causes motors to turn slower. This reduces the torque handling capabilities for DC and gearmotors, whilst causing vibration motors to vibrate less.

2. Eye Led Robotic

  • This circuit is about creating Two single eye Neopixel Led and for increase the fun we can imagine the seven segement display is the nose and the mouth is the Neopixel strip:). However, the next circuit is about creating Two Led in series (PWM) so it will be the eye of our robotic.

    • Series Connection: The eye led is connected in series. The most efficient way to run high power LEDs is using a series circuit with a constant current LED driver. Running a series circuit helps to provide the same amount of current to each LED. This means each LED in the circuit will be the same brightness and will not allow a single LED to hog more current than another. When each LED is receiving the same current it helps eliminate issues like thermal runaway.

    • What is an LED driver you might ask? An LED driver is an electrical device that regulates power to an LED or a string of LEDs. It is a crucial piece to an LED circuit and to operate without one will result in system failure.

2.2. Eye Led Robotic [Pulse-width modulation](PWM)

LINKS

SCREENSHOOT
PWM Led Circuit