LattePanda and Sen0177 (Gravity:Laser PM2.5 sensor)

Hi, I´m using an LattePanda(4G/64G) for the sensor. I followed all the support of this page(https://wiki.dfrobot.com/PM2.5_laser_du ... KU_SEN0177), using pins 0 and 1 Unfortunately, I keep havind the problem with zeros values. I attach wiring and problem.




What should i do?? help me T_T;;