Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01-IPX User ManualCopyright ©2012–2018,成都亿佰特电子科技有限公司 19password on the APP to make connection between module and router.5.4 Usage of PWMStepsE103-W01-IPX supports 4 channel PWM output, can be configured through the AT instruction to fast PWM cycle(1~10ms) and duty cycle,Steps: enter "peripheral control option" to configure parameters:1 Period range 1000~10000 corresponds to 1ms~10ms