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Posted by kevinlau | Sep 03, 2019 @ 01:04 AM | 766 Views
The servos DOMAN S2003MD and S2000MD are now available with digital position feedback without the need of additional wires.

How to

To get the current angle, send a 50us (microsecond) pulse to the servo motor. The servo will pull the control wire high after the microseconds that represent the current position. This can be done using Arduino:

pinMode(pin, OUTPUT);
digitalWrite(pin, HIGH);
delayMicroseconds(50); // send a 50 us pulse to get the current position
digitalWrite(pin, LOW);
pinMode(pin, INPUT);
int position = pulseIn(pin, HIGH); //e.g. 500-2500

Examples
Teach and Replay
Wire the servo as shown below:


01





Press enter on the serial monitor (enable Carriage return) to teach the current angle. 3 angles can be teached. Press enter to replay the angles.

Mirror movement
Wire two servos according to:



Move the servo connected to pin 9. The servo on pin 10 should follow. Open the serial plotter to view the read angle.
Posted by kevinlau | Mar 30, 2016 @ 08:56 PM | 3,076 Views
DOMAN RC hobby recently release a series of Magnetic Induction servos,The Special Characters:
1,It is a non-contact and wear-free magnetic encoder,so it will be with especially long life,the servo life will not be suject to the potentiometer's life;
2,It is a non-contact and wear-free magnetic encoder,so the precision will not go down with the time used,this is what the traditional potentiometer unmatched;
3,non-contact and wear-free magnetic encoder goes with high linearity, high accuracy, high reliability,this make the position feedback smoothly,so if it used on the platform,it will be stepless, this completely solve the problem of multistep by traditional potentiometer;
4,Because there is no block in the gear and the potentiometer,so it can rotate 360degree,and if the output shaft runs beyond the limit,this could also avoid and reduced damage to the potentiometer and gear set;
5,magnetic encoder could go to any point of 360degree,which break through the angle limit of traditional potentiometer,this makes your product running 360degree freely and no dead angle;

All of the coreless servos could upgrade to Magnetic Induction servo,and also could do OEM servos,
one of the servo specification as bellow:

Item No. DM-CLS205TD
Operating Voltage: 6V~7.4V
Speed: 0.13 sec/60deg (6.0v) 0.11sec/60deg (7.4v)
Torque: 18.5kg.cm (6.0v) 22.8kg.cm (7.4v)
Size: 40mmX20mmX37mm
Rotation angle:360degree(PWM500-2500us)
Weight: 58gram
Motor: Coreless
Gear Train: Metal(Titanium gear)
Ball Bearing: 2BB
Dead band width: 2usc
Interface: (JR)
Wire length: 30cm
Type: Digital,middle Aluminium heat sink,Coreless,Magnetic Induction
Posted by kevinlau | Nov 25, 2015 @ 03:05 AM | 3,190 Views
DOMAN RC HOBBY newest servo online now!This series servos specially design for robot used,especially for 17DOF Humanoid robot,it go with titanium alloy gears,15kg and 20kg torque available,offered 180degree/270degree/360degree styles,and also offer Magnetic Induction version for controllable 360degree,12bit digital IC,2 ball bearings,low profile style, output shaft 25T .
And we offer new style U frame and flange bearing for this servo,

the specifications as bellow:

Item No. DM-RS2010MD
Operating Voltage: 6V~7.4V
Speed: 0.28 sec/60deg (6v) 0.26sec/60deg (7.4v)
Torque: 18.5kg.cm (6v) 21.6kg.cm (7.4v)
Size: 44mmX23mmX26.5mm
Weight: 51gram


Item No. DM-RS1510MD
Operating Voltage: 4.8V~7.4V
Speed: 0.25 sec/60deg (6v) 0.23sec/60deg (7.4v)
Torque: 14.4kg.cm (6v) 16.5kg.cm (7.4v)
Size: 44mmX23mmX26.5mm
Weight: 51gram
Posted by kevinlau | Oct 15, 2015 @ 05:34 AM | 3,731 Views
DOMAN RC HOBBY offers a economy series of low profile servos for 1/10 rc drift car, these series servo have been on market for 1year yet,feedback well in China market,we hope more and more people enjoy it,the spec as bellow:
Item No. DM-S0911M
Voltage: 4.8V-7.4V
Speed: 0.12 sec/60deg (4.8v) 0.10sec/60deg (6.0v)
Torque: 7.1kg.cm (4.8v) 8.5kg.cm (6.0v)
Size: 40.5mmX20mmX28.3mm
Weight: 50gram
Motor: Brushed
Gear Train: Metal(Titanium gear)
Ball Bearing: 2BB
Type: Low Profile Servo

Item No. DM-CLS119TD
Voltage: 4.8V ~ 7.4V
Speed: 0.08 sec/60deg (6.0v) 0.07sec/60deg (7.4v)
Torque: 8.3kg.cm (6.0v) 9.5kg.cm (7.4v)
Size: 40.5mmX20mmX25.5mm
Weight: 45gram
Motor: Coreless
Gear Train: Metal(Titanium gear)
Ball Bearing: 2BB
Type: Digital,Coreless,Low Profile Servo
Posted by kevinlau | Jul 05, 2014 @ 11:12 PM | 4,402 Views
DOMAN RC HOBBY offers a series of brushless servos for 2 years yet,the production and QC with experience now,this make sure the quality and economy brushless servo could be true,thanks to the hard work people,they bring so much benefit to the rc fans,let's enjoy the rc hobby fun.
Item No. DM-BLS200TD Voltage: 4.8V ~ 7.4V Speed: 0.15 sec/60deg (6.0v) 0.13sec/60deg (7.4v) Torque: 17.8kg.cm (6.0v) 21kg.cm (7.4v) Size: 40mmX20mmX37mm Weight: 60gram Motor: Brushless Gear Train: Metal(Titanium gear) Ball Bearing: 2BB Type: Digital,Aluminium heat sink,BrushlessStandard Packing: clear PS case luxurious packing

Features:
Apply for rc car,rc plane,rc helicopter;rc boat
High presicion import titanium gears made by CNC;
Select brushless motor,could compare with import one;
1million life Japan Potentiometer;aluminium heatsink middle case
expert and experienced in brushless circuit for many years;
TOP choice on case plastic,and best mold manufacture,

We work hard to give our clients the lowest price and quality products. We have many years experience in servo design and production in China, and also OEM for some brands in hobby industry."Quality and Economy is our key mind", We hope all distributors could make money on the nice products,and the customers could enjoy the fun of rc hobby models!
We offer products on :

Anolog Servos
Digital Servos
Brushless Servos
Robot Servos
Full Metal Case Servos
Posted by kevinlau | Jun 17, 2014 @ 08:00 PM | 5,156 Views
Go with second generation programmable 12 Bits digital circuit,This circuit has twice the resolution of the original circuit while adding programmable overload protection. Coreless motor,titanium gears,double ball bearing,aluminium heatsink middle case,digital servo

Item No. DM-CLS118TD
Voltage: 4.8V ~ 6.0V
Speed: 0.11 sec/60deg (4.8v) 0.09sec/60deg (6.0v)
Torque: 7.2kg.cm (4.8v) 8.45kg.cm (6.0v)
Size: 40.8mmX20.5mmX25.6mm
Weight: 46.5gram
Motor: Coreless
Gear Train: Metal(Titanium gear)
Ball Bearing: 2BB
Type: Digital,Aluminium heat sink,Low Profile Servo
Posted by kevinlau | Jun 05, 2014 @ 10:55 AM | 4,074 Views
Coreless motor,titanium gears,double ball bearing,
Full Metal Case,New second generation programmable 12 Bits digital circuit,This circuit has twice the resolution of the original circuit while adding programmable overload protection.
Item No. DM-CLS205TD
Voltage: 4.8V ~ 7.4V
Speed: 0.14 sec/60deg (6.0v) 0.12sec/60deg (7.4v)
Torque: 18kg.cm (6.0v) 21.5kg.cm (7.4v)
Size: 40mmX20mmX37mm
Weight: 75gram
Motor: Coreless
Gear Train: Metal(Titanium gear)
Ball Bearing: 2BB
Type: Digital,Full Aluminium heat sink Case

Item No. DM-CLS155TD
Voltage: 4.8V ~ 7.4V
Speed: 0.12 sec/60deg (6.0v) 0.10sec/60deg (7.4v)
Torque: 15.5kg.cm (6.0v) 17.5kg.cm (7.4v)
Size: 40mmX20mmX37mm
Weight: 75gram
Motor: Coreless
Gear Train: Metal(Titanium gear)
Ball Bearing: 2BB
Type: Digital,Full Aluminium heat sink Case
Posted by kevinlau | Apr 17, 2014 @ 12:13 PM | 3,855 Views
Item No.M-S901TD
Weight:21g
Size:23mmX12mmX27mm
Speed:0.07 (4.8v)0.06(6.0v) )0.05 (7.4v) sec/60degree:
Torque:2.5kg.cm (4.8v)3.1 kg.cm (6.0v)3.7 kg.cm (7.4v):
Work Voltage:4.8-7.4Volts
Wire lenth:18cm
Posted by kevinlau | Nov 30, 2013 @ 04:05 AM | 4,139 Views
A few days ago,I get 3 new torque standard size digital servo,amazing 30kg,35kg,40kg,DM-CLS400MD
size :40X20X41mm,
Speed :0.13s/60degree
Torque:38.8kg.cm (6.0v) 40.6kg.cm (7.4v)