Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .
Shipping Methods
You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:
1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)
Delivery Time
Airmail and Airmail Registered
Area
Estimated Delivery Time
United States, Canada
7-25 business days
Australia, New Zealand, Singapore, United Arab Emirates
10-25 business days
United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland
10-25 business days
Italy, Brazil, Russia, South Africa
10-45 business days
Other countries
10-35 business days
Expedited Shipping
3-10 business days to Worldwide
Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.
If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.
Return Process
To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:
Alex NLD
Attn: Returns
RMA #
HaGiborim St 8
Tiberias, 14388
Israel
Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.
All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.
Refunds
After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.
Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.
Exceptions
If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.
Please provide us with following:
1. Photos of the front and back sides of the packaging box; 2. A photo, video or screenshot of the defective item or the defective part of the parcel.
Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.
Warranty & Repair service
If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team and the problem is acknowledged, you can send the items back to us for a repair.
Note: Please be aware, we do not cover the cost of the returns fees in warranty & repair service.
Order Cancellation
If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.
Questions
If you have any questions concerning our return policy, please contact us at:
1. The onboard stable 8-bit MCU is used to generate high-resolution PWM signals with precise control.
2. Support manual mode and return to medium mode, switch by button, with mode indicator.
3. Support knob adjustment or serial command control in manual mode.
4. The serial port command control can use the matching host computer software or connect to the external MCU.
5. Number of control channels: 2 channels (M0 and M1 servos). When using the knob adjustment and return function, the 2 servos are controlled at the same time. When using the serial command, the 2 servos can be controlled separately.
6. Steering gear control accuracy: 0.09 degrees (that is, PWM minimum change value 1us)
7. Support steering gear with control period of 20ms and pulse width in the range of 0.5-2.5ms (such as Futaba, Huisheng, etc.)
8. Can directly use 2S lithium battery charging head to debug and return to the steering gear
9. Power supply voltage range: 5-9V (Based on the actual servo supply voltage)
10. Product size: 47.2*29.8mm
11. Product weight: 11g
Package includes:
1 x Serial Port Control Board
Manual:
1. About wiring:
VCC, GND connect to power, insert the servo into the 2X3P pin header, where VCC is positive, GND is negative, and S is signal. (The Steering gear are not includes)
2. Manual mode:
The manual mode is selected by the onboard button, at which time the manual light is on and the neutral light is off.
The manual mode includes knob control and serial port control. The default is knob control. The two control modes will automatically switch, that is, when the potentiometer is detected to rotate, the knob is selected. When the serial port receives a valid control command, the serial port control is selected.
2.1 Knob control:
Directly turn the potentiometer to control the steering gear to rotate in the range of 0-180°
2.2 Serial port control:
The onboard MCU can receive and analyze the servo position command sent from the host computer, external MCU and other devices (baud rate 9600, compatible with 3.3V/ 5V level), thus controlling the 2-way servo respectively, where the servo position command format For: #P
The respective meanings are as follows:
a, # is the starting symbol, indispensable.
b, indicates that the number of steering gears controlled, total 2 channels (range: 00-01 corresponds to servos M0 and M1 respectively);
c, P is a fixed symbol in the instruction format, which is indispensable.
d,
e, ! is the end symbol of the instruction, indicating the end of an instruction, which is indispensable.
For example: Send #00P1500! to turn the servo M0 to 90° position
Send #01P1000! to turn the servo M1 to 45° position
For example. First, prepare a USB to _TTL serial port module (such as CH340, FT232, etc.). The TX, RX and GND of the serial port module are respectively connected to the RX, TX and GND of the control board. select a correct port number, after the connection is successful, drag the 0 and 1 progress bars to control the M0 and M1 servos respectively.
3. Back to medium mode:
The back to medium mode is selected by the onboard button. At this time, the manual light is off, the neutral light is on, and the servos M0 and M1 are simultaneously returned to the neutral position.
Reviews
There are no reviews yet.
Be the first to review “Dual Servos Knob Serial Port Control Board Futaba MG995 SG90 Steering Gear Debugging Module” Cancel reply
Q & A
There are no questions yet
Ask a question
Your question will be answered by a store representative or other customers.
Availability: 
Shipping: Free Airmail 
Reviews
There are no reviews yet.