How To Choose Whether The Torque Of Mg90s Micro Servo Is Enough?

Have you also encountered this situation? I wanted to turn an idea into reality with full confidence, but when it came to selecting the key mg90s microservo, I was at a loss. The mg90s on the market all look similar, but the prices vary. How should you choose? Don’t worry, today we are going to talk about this little guy that is inseparable from many innovative products, and help you understand all aspects of it, so that you can feel confident in your next project and no longer step into pitfalls.

Is the torque of mg90s enough?

The torque parameter of mg90s is the issue that many people are most concerned about. This smallservocan usually provide a torque of about 1.8kg·cm, which doesn’t sound like much, but for many micro-projects, this is exactly its golden value. ️You can imagine using it to drive a lightweight camera pan or control the joints of a small robot. This power is just right.

However, if you plan to use it to lift a heavier robotic arm, it may be a bit difficult. At this time, you can judge by simple physical estimation: gently pinch theservoarm with your fingers and feel the force of its rotation. If it feels very strenuous, it means that your load may be beyond its capacity. The key to choosing mg90s is to accurately evaluate the weight and resistance of the moving parts in your project.

mg90s Which one is better, plastic teeth or metal teeth?

This is a question that almost every newbie struggles with. There are two common versions of mg90s: one with all-plastic gears and one with metal gears. The advantages of plastic gears are that they are cheap and operate with very little noise. Moreover, because the material has a certain degree of toughness, it is possible to sacrifice oneself to protect the motor inside the steering gear when encountering a sudden jam.

The metal gear version is just the opposite. It is extremely durable and can withstand greater impact, so there is basically no need to worry about tooth scanning. ️But the price is that the noise will be slightly louder and the price will be more expensive. My suggestion is that if your project is like a remote-controlled car that often encounters collisions, or requires high-intensity operation for a long time, then it will be more secure to spend more money on metal teeth. If you are just making a simple home idea, plastic teeth are enough and you can save money.

mg90s voltage should be 5v or 3.3v

This problem is directly related to whether the steering gear can work stably. The recommended operating voltage of mg90s is usually 4.8V to 6.0V, so using a 5V power supply is a very ideal choice. At this time, the steering gear has the fastest response speed and the torque can reach the nominal value. Many microcontroller development boards, for example, the 5V output port on them can directly power it.

But if you only have a 3.3V system at hand, such as some ESP32 development boards, you may find that the servo rotates slowly or even not at all when you connect it directly. This is because the voltage is insufficient. ️The solution is also very simple. You need an external 5V power supply, then connect the power and ground wires of the servo to the external power supply, and only connect the signal wire to the 3.3V microcontroller. This will solve the problem perfectly.

How to accurately control the rotation angle of mg90s

The control principle of mg90s is actually very simple. It relies on a continuous pulse signal to "tell" it which position to turn to. The width of this pulse, usually between 0.5 milliseconds and 2.5 milliseconds, corresponds to the rotation range from 0 degrees to 180 degrees. You don't need to calculate these complicated timings yourself, mainstream microcontrollers on the market have ready-made servo control libraries.

For example, here, you can do it with just a few lines of code. Call.write(90);and the servo will immediately turn to the 90-degree position. ️The key is that you must first go through a simple test procedure to find the precise values corresponding to your servo at 0 degrees and 180 degrees, because different brands of mg90s may have subtle differences. Once calibrated, your robotic arm or gimbal can point to where to hit.

What is the difference between mg90s and sg90?

These are the two models that are most easily confused. sg90 can be said to be the predecessor of mg90s. They are very similar in appearance, size and basic performance, and many parameters are even the same. The biggest difference is hidden in their names: the "M" in mg90s usually stands for metal, which means that mg90s was designed with the metal gear version as the standard.

And sg90 usually refers to the standard plastic gear version. So you can simply understand that mg90s is an upgraded version derived from sg90 in order to provide stronger durability. ️Many merchants now sell mg90s with metal teeth by default, while sg90 has plastic teeth by default. Knowing this difference, you can have clear goals when choosing and place an order directly according to your needs.

Where can I buy reliable original mg90s?

This problem is the most practical and the most troublesome. Because mg90s is so popular, there are many imitation and OEM products on the market, and the quality varies. If you want to use it in important projects and have requirements for stability, it is best to find a regular agent or go to some well-known electronic component malls to buy it.

️You might as well open the search engine now and search for "mg90s company official website" or "mg90s authorized agent" to see which are officially recognized channels. Before buying, read more reviews from buyers, especially those who posted disassembly pictures, which can help you determine whether the gears are metal or coated with a layer of metallic paint. Taking the time to find a reliable source can save you countless troubles in troubleshooting during subsequent debugging.

I hope what we talked about today can give you a more comprehensive understanding of the small servo mg90s. What's the weirdest problem you've ever encountered using mg90s in your project? Or are you still unsure about the selection? Welcome to leave a message in the comment area, let's discuss and solve it together, don't forget to like and share so that more friends can see it!