https://forge.codesys.com/forge/talk/Runtime/thread/aa1fbd1cda/2021-10-12T22:55:47.113000ZRecent posts to Adafruit PCA9685 issues2021-10-12T22:55:47.113000Z2021-10-12T22:55:47.113000Zdavewkoenighttps://forge.codesys.com/u/davewkoenig/https://forge.codesys.comc5eb26fffeac9af0b95cb9ac92bbd7cb95d846a7

<div class="markdown_content"><p>Here is 400Hz PWM</p></div>

2021-10-12T22:55:02.905000Z2021-10-12T22:55:02.905000Zdavewkoenighttps://forge.codesys.com/u/davewkoenig/https://forge.codesys.com79a48f2e4ab66e0da55f7159282d7e68c417ff56

<div class="markdown_content"><p>Here is 100hz PWM signal</p></div>

2021-10-12T22:52:48.086000Z2021-10-12T22:52:48.086000Zdavewkoenighttps://forge.codesys.com/u/davewkoenig/https://forge.codesys.com89c799e64d2c20aad72fafb777593cc24da72180

<div class="markdown_content"><p>I am trying to use the PCA9685 board with PWM output. I can only seem to change the voltage never full range of 0V for no PWM, and 5V for full PWM. I can only change Frequency <span>[Hz]</span> the higher the frequency the higher the voltage range, also other parameters do not effect it like _alrMin, _alrMax, _freq, _rPeriod</p> <p>100hz Frequency = Adafruit_PWM.alrPWM<span>[0]</span> :=0 is 0.468V and 1 is 0.972 output does not appear to actually PWM, higher frequency</p> <p>400hz Frequency = Adafruit_PWM.alrPWM<span>[0]</span> :=0 is 1.949V and 1 is 3.894 PWM does not go to zero, and closer to 100% </p> <p>A attached program archive.</p></div>

2020-05-04T17:53:24.462000Z2020-05-04T17:53:24.462000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.comaf89e910ad0a69e8dae8eff3cffb326128738fc7

<div class="markdown_content"><p>not really a scheme, but a picture, there was quadcopter for a fair which was controlled by Raspberry PI and the adafruit pwm</p></div>

2020-05-03T11:40:35.585000Z2020-05-03T11:40:35.585000Zbpalaciohttps://forge.codesys.com/u/bpalacio/https://forge.codesys.com692980890131c5a8b7be3902a280920ede1333bf

<div class="markdown_content"><p>Hello: In the configuration that you started, a servo motor appears and I want to move a dc motor. Would it serve me in the same way with that configuration that you send me? Do you have any scheme with rl wiring for a dc motor</p></div>

2020-05-03T11:40:33.016000Z2020-05-03T11:40:33.016000Zbpalaciohttps://forge.codesys.com/u/bpalacio/https://forge.codesys.com2a046d88aec5fcd527e38a1725afb9a2eb0b967c

<div class="markdown_content"><p>Hello: In the configuration that you started, a servo motor appears and I want to move a dc motor. Would it serve me in the same way with that configuration that you send me? Do you have any scheme with rl wiring for a dc motor</p></div>

2020-05-03T07:08:06.255000Z2020-05-03T07:08:06.255000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com81cd6297d5340d52cbb5f0c2c9b04296cb41459d

<div class="markdown_content"><p>hm.. what happens if you use "c:\Users\&lt;windowsusername&gt;\CODESYS Control for Raspberry PI\3.5.15.40\Examples\I2CExamples.project" &lt;/windowsusername&gt;</p> <p>if wiring to the first port is done your motor should move if you set here <br/> .<br/> .<br/> Adafruit_PWM.alrPWM<span>[0]</span> := lrvalue;</p> <p>additional it should be possible to use the Softmotion part (sure only MC_MoveVelocity might work with this)</p> <p>BR<br/> Edwin</p></div>

2020-05-01T13:14:56.911000Z2020-05-01T13:14:56.911000Zbpalaciohttps://forge.codesys.com/u/bpalacio/https://forge.codesys.comb61560da271465747a570171f3e8474330e276ae

<div class="markdown_content"><p>Hello: I have specified the projects but they do not provide enough information about the adafruit pwm library. I have already made it move in one direction but without a specific procedure. I would like to know what each of the parameters of the adafruit pwm library mean in addition to the connections.</p></div>

2020-05-01T06:23:58.161000Z2020-05-01T06:23:58.161000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.come1a50422c62fca3b46902b95d5b14716c529a057

<div class="markdown_content"><p>Hi,<br/> did you check:<br/> "c:\Users\&lt;yourwindowsusername&gt;\CODESYS Control for Raspberry PI\3.5.15.40\Examples\I2CExamples.project" <br/> "c:\Users\&lt;yourwindowsusername&gt;\CODESYS Control for Raspberry PI\3.5.15.40\Examples\SoftMotion Servo Example.project" &lt;/yourwindowsusername&gt;&lt;/yourwindowsusername&gt;</p> <p>or here a lot of older snippets not only for the Adafruit PWM<br/> <a href="https://forge.codesys.com/forge/talk/Runtime/thread/04361f89ec/?limit=25#333d">https://forge.codesys.com/forge/talk/Runtime/thread/04361f89ec/?limit=25#333d</a></p> <p>BR<br/> Edwin</p></div>

2020-04-30T12:31:39.053000Z2020-04-30T12:31:39.053000Zbpalaciohttps://forge.codesys.com/u/bpalacio/https://forge.codesys.combf2ab83ba902f478f0efbdc070918d23e661f454

<div class="markdown_content"><p>Hello:</p> <p>I am using the adafruit pwm to control a DC motor but I cannot get it to work. Could someone give me a hand or share an example project in which the PWM output of said card is configured.</p> <p>Cheers</p></div>