New build.

[Fernando Garcia]

Hi!

I didn't this board, I have only the project.

This board is very simple.

Best regards.

[Christopher Kindig]

I am going to do a prototype as I now have 2 jebao wp60 power heads and 2 24 volt power supplies.

[Christopher Kindig]

tested wave maker circuit on bread board and it works now to make the board

[Christopher Kindig]

on pin outs you have RJ-11 as one ground and one 5v, in board you have 2 gnd witch one is correct.

[Christopher Kindig]

how many PWM pins does Ferduino have, I want to control 4 jebao pumps (2 wave maker 2 dc return pumps), point is to use a single 24 volt by 450 watt power supply for all 4 pumps, also will make feed mode a lot easier and maintenance mode as well.

[Fernando Garcia]

Christopher Kindig » Yesterday 11:36 pm wrote:

on pin outs you have RJ-11 as one ground and one 5v, in board you have 2 gnd witch one is correct.

Hi!

For this PCB the 5V is useless so, do not connect the wire in 5V.

The 5V is useful if you want add a LED on PCB.

There 15 PWM pins but, for DC pumps there only 2 free pins.

You needs use the pins reserved for LEDs or use a PWM expander as PCA9685.

Best regards.

[Christopher Kindig]

So I have ordered the I2c expansion, 24v 350 watt power supply and 2 jebao return pumps I will also convert my skimmer to a jebao pump as well as I will have the room to do it with the expansion. Kind of excited about this. Got my wp60 today, that thing is a monster and moves a lot of water.

[Fernando Garcia]

Hi!

Waiting to see it working.

Best regards.

[Christopher Kindig]

Hi Fernando.
Do you have any thoughts on what the circuit will look like for using the board you have suggested, I have some stuff already worked out, but could use some help with details of things.

[Fernando Garcia]

Hi!

The wiring is like this:

Best regards.

[Christopher Kindig]

From what I have found the circuit I need to build looks just like the one on the forum only it will have 6 out put connections, I will have one 24 volt+ bus to run all 5 pumps, on 24 v- connected in common with ferduino and pwm expansion, and the I2c communication on its own from ferduino. So I will need an LDD driver I thought I might. Will a LDD 350 be large enough my highest wattage is going to 105 watts, or should I use 1000 LDD? Or should I use this circuit for lights and LED pwm for motor control?

[Fernando Garcia]

Yes, is right.

In the image above the LDD is your PCB and the LED is your pump.

[Christopher Kindig]

Ok so I do not need LDD just the circuit board I have been working on. Just need to add connections for the other pumps. I will finish the board layout today can you look and see if missed any thing, your knowledge about this surpasses mine by far.

[Fernando Garcia]

Hi!

For Jebao pumps the LDD is not needed.

This image is only to show the concept, I mean all GNDs connected and +24V and PWM going directly to your PCB.

Show me the project.

Best regards.

[Christopher Kindig]

I understand.

[Christopher Kindig]

Hi Fernando, what other I2c components will I have to program around, I have been reading up on how to do it, I would just like to know what I will be up against when my parts are all done. I am also going to make a separate screen for manual control of these pins as well thanks in advance for your support.

[Fernando Garcia]

Hi!

The PCF8575 on I2C bus should work normally with this new device. No changes on code are needed for others devices.

Best regards.

[Christopher Kindig]

Hi Fernando, I have to provide an I2c address fort his within the code only on setup as (0x40) correct?

-------------------------------- Last edited Wed Dec 23, 2015 10:50 am --------------------------------

[Fernando Garcia]

Hi!

Check this tutorial please: https://learn.adafruit.com/16-channel-pwm-servo-driver

A basic code for it is:

Code: Select all

#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
 
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x40);
 
void setup()
{
  Serial.begin(9600);
  Serial.println("16 channel PWM test!");
 
  pwm.begin();
  pwm.setPWMFreq(1600);  // This is the maximum PWM frequency

}

void loop()
{
  // Drive each PWM in a 'wave'
  for (uint16_t i=0; i<4096; i += 8)
 {
    for (uint8_t pwmnum=0; pwmnum < 16; pwmnum++)
    {
      pwm.setPWM(pwmnum, 0, (i + (4096/16)*pwmnum) % 4096 );
    }
  }
}


Best regards.

[Christopher Kindig]

-------------------------------- Last edited Wed Dec 23, 2015 11:02 am --------------------------------

Even with that code being for servos it will work for pwm motor?