MCU Smart touch Fascial Gun Solution

Recently, in the field of fitness and office workers, fascial gun is favored and pursued by fitness enthusiasts and commuters. To this end, Eason technology has launched a single chip fully integrated touch fascia gun solution, providing customers with the main control chip (MCU), PCB circuit design and MCU chip program
1、 Principle and function of fascial gun

Fascial gun can reduce local tissue tension, promote blood circulation, relax muscles and improve muscle soreness by producing high-frequency vibration to deep muscle. When you have delayed muscle soreness, using a fascia gun can help you improve the pain, relax the muscles, and increase the range of motion of the joint. For sedentary people often have shoulder and neck stiffness, upper back trapezius muscle is too tight condition, fascia gun is also useful.

Stiff muscles will lead to poor blood circulation, resulting in local muscle hypoxia and accumulation of metabolic waste, which will cause muscle inflammation and pain, and vicious cycle will cause muscle tightening and jumping At this time, the fascia gun has the effect of relieving pain and relaxing muscles.

Generally, a fascia gun will provide four different massage conversion heads to massage different muscles and fascia areas. For example, the spherical head is mainly used for the massage of large muscle groups; the flat head can be used for the massage of all parts of the body, and it is generally used to relax the leg muscles, especially for girls who wear high-heeled shoes. The U-shaped head is mainly used for the massage of the spine, which is absolutely sour for the students who are used to sitting for a long time, but it is not convenient to relax the back The small round head is used for joint massage.

2、 Design of fascial gun

1. Main hard parts of fascial gun scheme

1) Battery: 18650 2200mAh lithium ion battery with 12.6V protection plate

2) Charger: input AC 100-240V, output 13V 600mA, exposed wire length 1.5m

3) Motor: 12V brushless motor or DC brush motor

4) DC socket: 5.5mm diameter direct plug

2. Function setting of fascial gun scheme

1) Gear adjustment

a) The product is set with two touch buttons, namely +, - two touch buttons. There is an LED indicator in the middle of the button. When the touch button senses the button is pressed, the indicator light goes out, and when the touch button senses that the key is released, the indicator light is on.

b) Press the + key to increase the gear in turn. By default, the power on starts from gear 1-2 until the highest gear 30.

c) Press the - key to decrease from the current gear to the 0 gear, and the product will stop working after shutdown.

Note: the gear speed is controlled by PID intelligent adjustment, and the force will be increased slowly and gently to the current corresponding gear when the gear is adjusted)

2) Nixie tube indicator light:

a)This product is equipped with left and right two digit digital tube. The left nixie tube is used to display 0-30 gear setting. The right digital tube is used to display the battery power and charging state.

b) Working and standby: the right nixie tube displays the current power in percentage. When the battery power is low, the right digital tube will display "Lo" low power warning, and strongly stop the shutdown and prohibit work to protect the battery cell from excessive discharge damage.

c)Charging: when the charger is plugged in, the left nixie tube is closed and it is forbidden to start working. The right nixie tube displays the current power with a percentage of the running lamp. When the power is fully charged, the right nixie tube displays 99 and stops running the horse.

3)Intelligent timing:

a)After start-up, Magang starts timing, stops working automatically after 15 minutes of continuous work and enters standby mode. To prevent damage caused by long-term overuse.

b) When there is no key operation for 1 minute in standby mode, all indicator lights and nixie tubes are turned off. The product enters deep dormancy power saving mode.

3、Functional requirements of fascia gun control panel

1) Drive DC12V brushless motor or brush motor, linear speed regulation;

2) The power supply mode adopts 3 series of 18650 lithium batteries, 12.6v/1600mah, with overcharge and over discharge protection;

3) Charge, discharge, digital tube real-time monitoring display power;

4) Set two touch keys, increment key + (left side) and decrement key - (right side); press once to add or subtract 1, and long press to quickly increase or decrease;

5) Set the two-stage toggle switch on and off, no matter the switch is on or off, it can be charged normally; when the switch is on, touch the plus / minus button, it can work normally;

6) There are two groups of nixie tube display on the panel. The speed gear (00 ~ 30) is displayed on the left, and the electric power (01 ~ 99) is displayed on the right. The increment and decrease of the nixie tube is in the unit of 1;

7) When charging, the left nixie tube turns off the display, and the right run code displays the real-time charging power. When the battery is fully charged, the code running display 99 is stopped.

4、Chip parameters of fascial gun program

◆Core: 8051 core;

◆ROM：16.0K；

◆RAM ：2 Bytes；

◆Working voltage:1.8-5.5V；

◆Clock source：IHRC 16MHz（1.8V～5.5V:±1%@-25℃～85℃；±2%@-45℃～125℃）；

◆PWM：16 bit counter, 6 independent PWM outputs with the same cycle and flexible duty cycle;

◆I/O：with 17 bidirectional CMOS;

◆Touch port: it can support up to 7 channels of low-power and high-performance touch buttons;

◆AD port：12bit ,11个；

◆Package：SOP20

3、Usage and precautions of fascial gun

Fascial gun is mainly used for muscle movement, such as lower limb muscle massage after squatting, shoulder deltoid muscle massage after upper limb exercise, arm muscle group massage

Methods: the same site with fascia gun about 30-120 seconds, time should not be too long. The frequency can be started from the lowest frequency and gently placed on the muscle without heavy pressure. Deep and thick muscles (such as gluteus muscle) can increase the vibration frequency. It is easy for the muscle in pain to feel sore when using the fascia gun. The correct frequency should feel that the muscle is gradually relaxed. If increasing the frequency will make people unconsciously tighten the muscle, then the frequency should be reduced.


Do not use on joints or protrusions. The position of blood vessels and nerves passing through the joint is usually shallow, and it is easy to damage the blood vessels or nerves by using the fascia gun directly.

Fascia guns are not suitable for "acute sprains and contusions," such as ankle sprains or muscle tears. Delayed muscle soreness is different from acute strain and contusion. Laceration usually occurs at the moment, with obvious pain. Delayed muscle soreness is mainly due to the pain the next day or longer after exercise.

4、Do fascial guns work?

When the fitness exercise is finished, the muscle is out of tension, causing the enhancement of metabolic activity. When the muscle metabolic activity is enhanced, it will produce metabolites. We often say that lactic acid is like this. The production of metabolites will cause muscle pain cells. Such pain will make muscle muscle continue to contract, resulting in tissue ischemia. The damaged myofibrillar cells lead to the lack of ATP supply due to local ischemia, which is not conducive to local circulation; on the other hand, it will reduce the oxygen supply of muscle fiber tissue, aggravate the damage of muscle fiber, and form a vicious cycle, and finally produce energy metabolism crisis. After the occurrence of metabolic crisis, a number of tense muscle fibers will be formed to form a tension cord, which will cause pain points. Sometimes our muscle soreness does not mean that the whole muscle is damaged. It is likely that there is a nodule in the middle of a certain section of this muscle that causes the whole muscle ache.

Fascia is the connective tissue attached to our muscles and subcutaneous tissue. After a long period of exercise, the sympathetic nerve will be particularly active, and the muscle will be tense and stiff when static, which makes the fascia produce adhesion.

The fascial gun is used to break the tension of muscles and reduce the accumulation of lactic acid through high-frequency vibration. In this process, you will feel very relaxed. The fascia gun is very suitable for the relaxation of large muscles. However, if it is for the nodules and small pain points in the muscles, it is relatively safe to carry out professional treatment. The principle of fascial gun comes from deep muscle stimulator (DMS). It is an effective method to treat soft tissue pain introduced from the United States in recent years. Mechanical vibration acts on deep muscle tissue to stimulate its proprioceptive function, which can effectively relieve muscle tension and achieve the purpose of pain relief. The maximum vibration times per minute of deep muscle stimulator is 3600 times / min, and the depth can reach 20 ~ 60mm. It can effectively relax the effect of muscle spasm, and it can also be used when you have cramps.


1. Competitive demand

For example, boxers or football players can use the fascia gun to relax muscles during the interval of the match to prevent injury and have better sports performance.

2. Auxiliary use of rehabilitation therapists

Rehabilitation therapists refer to those who are qualified, have studied and thought about knowledge, obtained relevant certificates or know how to carry out rehabilitation treatment. It does not mean that which muscle is weak and which muscle is tight will relax which muscle. It needs certain knowledge for professional treatment.

3. High intensity trainers

In some gymnasiums, some barbell trainers suffer from muscular pain after stretching high strength training. The general stretching and foam shaft relaxation can not alleviate and relax the muscles in depth. The fascia guns can be regarded as a good choice. General fascia guns have three different gears. For different degrees of muscle relaxation, some high price fascial guns will have five gears, designed for professionals. And some other people who exercise and keep fit, usually pay attention to stretching and other relaxation activities, which can meet a rest of our muscles.