# Unable to read from LW20C lidar from orange cube? (Dispite no error) **URL:** \ **Category:** Cube Autopilot\ **Created:** [7 September 2021 06:47 UTC](https://discuss.cubepilot.org/t/unable-to-read-from-lw20c-lidar-from-orange-cube-dispite-no-error/7236 "2021-09-07T06:47:47Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![gwm](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/g/94ad74/32.png) [@gwm](https://discuss.cubepilot.org/u/gwm)\ **Post date:** [7 September 2021 06:47 UTC](https://discuss.cubepilot.org/t/unable-to-read-from-lw20c-lidar-from-orange-cube-dispite-no-error/7236/1 "2021-09-07T06:47:47Z")
Hi, Firstly my LW20C is working as I tested it with TTL on my PC. I am using orange cube. I tries to connect LW20C Lidar to the GPS 2 slot. I followed exactly the wiring as according to the picture. [![](https://ardupilot.org/plane/_images/Cubepilot_ecosystem.jpg) ](https://ardupilot.org/plane/_images/Cubepilot_ecosystem.jpg) I configure, - [SERIAL6\_PROTOCOL](https://ardupilot.org/copter/docs/parameters.html#serial4-protocol) = 9 (Lidar) - [SERIAL6\_BAUD](https://ardupilot.org/copter/docs/parameters.html#serial4-baud) = 115 (115200 baud) for newer sensors, - [RNGFND1\_TYPE](https://ardupilot.org/copter/docs/parameters.html#rngfnd1-type) = 8 (LightWareSerial) - [RNGFND1\_SCALING](https://ardupilot.org/copter/docs/parameters.html#rngfnd1-scaling) = 1 - [RNGFND1\_MIN\_CM](https://ardupilot.org/copter/docs/parameters.html#rngfnd1-min-cm) = 5 - [RNGFND1\_MAX\_CM](https://ardupilot.org/copter/docs/parameters.html#rngfnd1-max-cm) = **9500**. _This is the distance in centimeters that the rangefinder can reliably read._ - [RNGFND1\_GNDCLEAR](https://ardupilot.org/copter/docs/parameters.html#rngfnd1-gndclear) = 10 _or m_ Now the Rangefinder 1 not detected warning disappear. Which means it seems to be correct. But when I click on the status on auto pilot. Rangefinder 1 is 0 Sonarrange is 0 Anyone have done this before and it works? kind share how did you managed to makes it work?