Hello, I hope you're fine.

I've bought the urm14 module and I need the RS485 shield to use it. By the way I need two more urm14. So in total, I want four(4) Rs485 shield  (https://wiki.dfrobot.com/Arduino_RS485_Shield_SKU__DFR0259) and two (2) urm14 (https://wiki.dfrobot.com/URM14_RS485_Precision_Ultrasonic_Sensor_200KHz_SKU_SEN0358). Please follow the links to see the characteristics. Thank you.

SAMA Dieudonné from Burkina Faso