Ks0258 keyestudio 16-channel Servo Motor Drive Shield: Difference between revisions

From Keyestudio Wiki
Jump to navigation Jump to search
(Created page with "==keyestudio 16-channel Servo Motor Drive Shield== <br>500px|frameless|thumb<br> ==Introduction== This is a GPRS / GSM Arduino expansion boarddeveloped by...")
 
 
(21 intermediate revisions by the same user not shown)
Line 1: Line 1:
==keyestudio 16-channel Servo Motor Drive Shield==
<br>[[File:KS0258.png|500px|frameless|thumb]]<br>


[[image:KS0258.png|thumb|800px|right|keyestudio 16-channel Servo Motor Drive Shield]]
<br>
==Introduction==
==Introduction==
This is a GPRS / GSM Arduino expansion boarddeveloped by Keyes. It is a shield module with frequency of EGSM 900MHz / DCS 1800MHz and GSM850 MHz / PCS 1900MHz, integrated with GPRS, DTMF and other functions. It supports DTMF, when the DTMF function is enabled, you can get the character feedback from the conversion of button pressed down during the call, which can be used for remote control.<br>
When we are doing robot experiments, it needs to use multiple PWM ports to drive the servo motor, however, the commonly-used Arduino UNO R3 only has 6 PWM ports, really not enough. This allows you to use this expansion board, which is directly stacked on the Arduino UNO R3 board. It can drive up to 16 servos and use I2C input, occupying A4 and A5 pins of UNO. <br>
It is controlled by the AT command, you can directlystart its function through the computer serial port and Arduino motherboard. The SIM800C GPRS Shield board has abuilt-in SIM800H chip with good stability.<br>
The shield also comes with PCB double-sided holes, which can be used to solder with components to build up prototyping circuits.
<br>[[File:图片1- ks0258.png|700px|frameless|thumb]]<br>
 
<br>
==Specifications==
*I2C input, controlling 16-channel PWM output
*Servo power independent input V+, up to 6V.
*Logic signal and logic power independent output 3-5V
*Frequency: 40-1000Hz
*Channels: 16-channel
*Resolution: 12-bit
 
 
<br>
==Details==
*'''Dimensions:''' 69mm x 54mm x 24mm
*'''Weight:''' 20g
<br>[[File:图片2- ks0258.png|700px|frameless|thumb]]<br>
 
<br>
== Interface Explanation  ==
<br>[[File:Ks0258 pinout.jpg|700px|frameless|thumb]]<br>
 
 
== Simple Hookup==
Simply stack the shield onto [http://wiki.keyestudio.com/index.php/Ks0001_keyestudio_UNO_R3_BOARD  UNO R3 board ]. <br>
<br>[[File:KS0258-2.png|700px|frameless|thumb]]<br>
 
 
== Sample Code ==
*Copy and paste the code below to [http://wiki.keyestudio.com/index.php/How_to_Download_Arduino_IDE  Arduino IDE ]. <br>
*Or [https://drive.google.com/open?id=1YDzJsMsh73CfSdYTp9wnSdedQanG6fzj  click here ]to download the code. <br> 
*[https://drive.google.com/open?id=1uSpbRoHXHS3WPgWmKU0ex4NOjDMh0Z5j  Click here] to download the libraries ''Adafruit_PWMServoDriver.h'' <br>
'''Note:''' Before compile the code, do remember to add the libraries inside the libraries folder of Arduino IDE.
 
<pre>
/***************************************************
  This is an example for our keyestudio 16-channel PWM & Servo driver
  PWM test - this will drive 16 PWMs in a 'wave'
 
  The Servo Shield uses I2C to communicate, 2 pins are required to 
  interface. For Arduino UNOs, thats SCL -> Analog 5, SDA -> Analog 4
 
  keyestudio invests time and resources providing this open source code,  
  please support keyestudio and open-source hardware by purchasing
  products from keyestudio !
****************************************************/
 
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
 
// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
// you can also call it with a different address you want
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);
 
void setup() {
  Serial.begin(9600);
  Serial.println("16 channel PWM test!");
 
  // if you want to really speed stuff up, you can go into 'fast 400khz I2C' mode
  // some i2c devices dont like this so much so if you're sharing the bus, watch
  // out for this!
 
  pwm.begin();
  pwm.setPWMFreq(50); //maximum is 1600
   
  // save I2C bitrate
  //uint8_t twbrbackup = TWBR;
  // must be changed after calling Wire.begin() (inside pwm.begin())
  //TWBR = 12; // upgrade to 400KHz!
   
}
 
void loop() {
  // Drive each PWM in a 'wave'
  // "safe" limits of 200 and 400 are used here to protect servos with undetermined end stop points
  for (uint16_t i=200; i<400; i += 4) {
    for (uint8_t pwmnum=0; pwmnum < 16; pwmnum++) {
      pwm.setPWM(pwmnum, 0, i);
    }
    delay(2);
  }
}
 
</pre>
 
<br>
 
== Test Result ==
Done uploading the above code to UNO R3. Then connect 16 servo motors shown below, finally you should see 16 servos rotate successively.
<br>[[File:KS0258-3.png|600px|frameless|thumb]]<br>
 
 
<br>
==Resources ==
 
'''Download libraries and code: '''<br>
 
https://fs.keyestudio.com/KS0258
 
 
<br>
 
==Get One Now ==
*[https://www.keyestudio.com/keyestudio-16-channel-servo-motor-drive-shield-for-arduino-p0339.html    '''Official Website''']
 
*[https://www.aliexpress.com/store/product/Keyestudio-16-channel-Servo-Motor-Drive-Shield/1452162_32830961097.html?spm=2114.12010612.8148356.64.1e95276fWVKZK9  Shop on Aliexpress]
 
*[https://www.ebay.com/itm/Keyestudio-16-Channel-12-bit-PCA9685-Servo-Motor-Drive-Module-Board-for-Arduino/132746581592?hash=item1ee8501658:g:hyYAAOSwUC1bV0NP  Shop on eBay ]
 
*[https://www.amazon.com/KEYESTUDIO-16-channel-12-bit-Shield-Arduino/dp/B0797JK4RW    Shop on Amazon]
 
 


==Specification==
[[Category: Shield]]

Latest revision as of 11:16, 22 December 2023


keyestudio 16-channel Servo Motor Drive Shield



Introduction

When we are doing robot experiments, it needs to use multiple PWM ports to drive the servo motor, however, the commonly-used Arduino UNO R3 only has 6 PWM ports, really not enough. This allows you to use this expansion board, which is directly stacked on the Arduino UNO R3 board. It can drive up to 16 servos and use I2C input, occupying A4 and A5 pins of UNO.
The shield also comes with PCB double-sided holes, which can be used to solder with components to build up prototyping circuits.
thumb


Specifications

  • I2C input, controlling 16-channel PWM output
  • Servo power independent input V+, up to 6V.
  • Logic signal and logic power independent output 3-5V
  • Frequency: 40-1000Hz
  • Channels: 16-channel
  • Resolution: 12-bit



Details

  • Dimensions: 69mm x 54mm x 24mm
  • Weight: 20g


thumb


Interface Explanation


thumb


Simple Hookup

Simply stack the shield onto UNO R3 board .

thumb


Sample Code

Note: Before compile the code, do remember to add the libraries inside the libraries folder of Arduino IDE.

/*************************************************** 
  This is an example for our keyestudio 16-channel PWM & Servo driver
  PWM test - this will drive 16 PWMs in a 'wave'

  The Servo Shield uses I2C to communicate, 2 pins are required to  
  interface. For Arduino UNOs, thats SCL -> Analog 5, SDA -> Analog 4

  keyestudio invests time and resources providing this open source code, 
  please support keyestudio and open-source hardware by purchasing 
  products from keyestudio !
 ****************************************************/

#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>

// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
// you can also call it with a different address you want
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);

void setup() {
  Serial.begin(9600);
  Serial.println("16 channel PWM test!");

  // if you want to really speed stuff up, you can go into 'fast 400khz I2C' mode
  // some i2c devices dont like this so much so if you're sharing the bus, watch
  // out for this!

  pwm.begin();
  pwm.setPWMFreq(50); //maximum is 1600
    
  // save I2C bitrate
  //uint8_t twbrbackup = TWBR;
  // must be changed after calling Wire.begin() (inside pwm.begin())
  //TWBR = 12; // upgrade to 400KHz!
    
}

void loop() {
  // Drive each PWM in a 'wave'
  // "safe" limits of 200 and 400 are used here to protect servos with undetermined end stop points
  for (uint16_t i=200; i<400; i += 4) {
    for (uint8_t pwmnum=0; pwmnum < 16; pwmnum++) {
      pwm.setPWM(pwmnum, 0, i);
     }
    delay(2);
  }
}


Test Result

Done uploading the above code to UNO R3. Then connect 16 servo motors shown below, finally you should see 16 servos rotate successively.
thumb



Resources

Download libraries and code:

https://fs.keyestudio.com/KS0258



Get One Now