https://forge.codesys.com/hax/blog/2018/07/driving-12v-with-softpwm/2018-07-10T20:16:35.127000ZRecent changes to Driving 12V with SoftPWM2018-07-10T20:16:35.127000Z2018-07-10T20:16:35.127000ZIngohttps://forge.codesys.com/u/ingo/https://forge.codesys.comf8ad046af37c545baef2ebb0dde8aab10aa3209f

<div class="markdown_content"><p>Source Code</p></div>

2018-07-04T22:29:41.023000Z2018-07-04T22:29:41.023000ZIngohttps://forge.codesys.com/u/ingo/https://forge.codesys.com66275c4fa5e11bb7f64ec9068dea062a743bf572

<div class="markdown_content"><p>For my current project I need a 12V Analog output. Today I did some first tests.</p> <p><iframe height="270" src="https://www.youtube.com/embed/oyWTSpI9OXk?feature=oembed" width="480"></iframe></p> <h1 id="getting-12v">Getting 12V</h1> <p>I used a voltage regulator which is rising the 5V of the Pi to 12V. The reason is, that I want to be able to power the whole thing with a standard power bank.</p> <h1 id="getting-a-pwm-signal">Getting a PWM signal</h1> <p>I used the SoftPWM FB from the <a class="" href="/drv/gpio-mod">GPIOMods</a> project to get a PWM signal out of GPIO4.</p> <h1 id="driver">Driver</h1> <p>To drive a voltage that is higher than 3.3V, I used a usual combination of an NPN and a PNP transistor. I just had not the correct resistors at hand, why lower volatages can't be correctly reached (you will notice in the video ;) )</p></div>