 Okay y'all, today we are going to unbox the SD25DVPWM ESET board. This board has the SD25DVPWM device, basically an NFC tag device, SOA and package, and it has two PWM outputs, so technically you can use NFC to change the port with the duty cycle, the frequency, and basically change the PWM parameters, so you can use it to drive motors and LED drivers, whatnot, so to illustrate how to use this board, we need a USB micro, and you want to use the NFC tab app, and just do a read tag, go to more, in here we're going to do ST25 PWM control, here we can do a typical control of the duty cycle, so here the bank of LED illustrates the amount of the duty cycle of the PWM signal by changing the slide, it dynamically changes the PWM output, so if you want to be at about 50% duty cycle, you're about there, using the app you have option to change all the parameters including the frequency and the duty cycle of the signal, so these four pins has the PWM output ground and external VCC, so you can actually connect to a fed switch to a motor to control speed, be aware that the output of the PWM IC itself doesn't have enough current to drive the motor, because in many cases that could be tens of milliamps, so you would want to use an external power source and a fed switch of some sort to drive the motor, okay thank you.