Mikroelektronika d.o.o.
Vibro Motor Click-Platine
Vibro Motor Click-Platine
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Das Vibro Motor Click Board™ verfügt über einen kompakten ERM-Motor (Excentric Rotating Mass) mit der Bezeichnung C1026B002F. Dieser Motortyp wird häufig für haptisches Feedback bei vielen kleinen Handheld-Geräten wie Mobiltelefonen, Pagern, RFID-Scannern und ähnlichen Geräten verwendet. Dieser Motor enthält ein kleines exzentrisches Gewicht auf seinem Rotor, sodass er beim Drehen auch einen Vibrationseffekt erzeugt. Aufgrund seiner Form wird dieser Motortyp manchmal als Münzmotor bezeichnet.
The Vibro Motor Click Board™ features a compact size Eccentric Rotating Mass (ERM) motor, labelled as C1026B002F. This type of motor is often used for haptic feedback on many small handheld devices, such as the cellphones, pagers, RFID scanners and similar devices. This motor contains a small eccentric weight on its rotor, so while rotating it also produces vibration effect. This kind of motors is sometimes referred to as coin motors, due to its shape.
Besides the vibration motor, the click is also equipped with the DMG3420U, a small MOSFET, which is used to drive the motor. The Vibro Motor Click Board™ is an ideal solution for adding a simple, one pin driven haptic feedback on any design.
How Does The Vibro Motor Click Board™ Work?
The Vibro Motor Click Board™ uses the DMG3420U MOSFET to drive the ERM motor, since the MCU itself cannot provide enough power for the motor driving. The circuit also contains a protection diode, which is used to protect the transistor from the reverse voltage, since the motor represents an inductive load and turning off its current can produce a kickback voltage that can damage the transistor.
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The gate of the MOSFET is driven by the PWM signal, routed through the PWM pin of the mikroBUS™. The PWM signal toggles the gate of the MOSFET with the pulses of a certain width. As a result, the current through the motor is varied depending on the pulse width of the PWM signal, which directly affects the speed of the motor, effectively controlling the vibration force that way. The small, eccentric weight attached to the rotor of the coin motor, generates the centrifugal force while it rotates, which in turn results with the wobbling effect of the motor itself. The faster the rotation is, the bigger the force gets. Controlling the motor speed allows for the vibration intensity to be controlled.
MikroElektronika library contains functions that are used to easily drive the motor by changing the PWM pulse width, saving time for the application firmware development.
SPECIFICATIONS
| Type | Haptic |
| Applications | The Vibro Motor Click Board™ is an ideal solution for adding a simple, one pin driven haptic feedback on any design. |
| On-board modules | C1026B002F Eccentric Rotating Mass (ERM) motor |
| Key Features | Low power consumption, compact size |
| Interface | PWM |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V |
PINOUT DIAGRAM
This table shows how the pinout of the Vibro Motor Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| NC | 1 | AN | PWM | 16 | PWM | Motor speed control | |
| NC | 2 | RST | INT | 15 | NC | ||
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | NC | ||
| NC | 6 | MOSI | SDA | 11 | NC | ||
| Power supply | 3V3 | 7 | 3.3V | 5V | 10 | NC | |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
VIBRO MOTOR CLICK SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Rated ERM motor speed | 9000 | RPM | ||
| Bracket deflection strength | 9.8 | N | ||
| Mechanical noise | 50 | dB | ||
| Operating Temperature | -20 | +60 | °C |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| VM | Vibro motor | - | Vibration motor |
| PWR | Power LED | - | Power LED indicator |
Software Support
We provide an example for the Vibro Motor Click Board™ on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Example Description
This demo application demonstrates how to control the Vibro Motor Click Board™ by using the MCU's PWM module. The demo application is composed of two sections:
- systemInit - Initializes the PWM module
- applicationTask - Sequential call of each pattern with 1 second delay in between
Additional functions:
void vibromotor_pattern1(uint8_t loops)- Long vibration pattern - 1 second vibration + 1 second delay
void vibromotor_pattern2(uint8_t loops)- Short vibration pattern - 200 ms vibration + 500 ms delay
The full application code and ready to use projects can be found on our LibStock page.
Other mikroE Libraries used in the example:
- PWM
Additional Notes and Information
Depending on the development board you are using, you may need a USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.
MIKROSDK
The Vibro Motor Click Board™ is supported with mikroSDK, the MikroElektronika Software Development Kit.
Vibro Motor Click-Platine
Frequently Asked Questions
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