NodeMCU is an open source IoT platform. It includes firmware which runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which is based on the ESP-12 module.
: SELECT * FROM refel_product WHERE status=1 AND (FIND_IN_SET(28,cat_id) OR FIND_IN_SET(1,cat_id) OR FIND_IN_SET(24,48,31,cat_id) OR FIND_IN_SET(64,subcat_id) OR FIND_IN_SET(86,subcat_id) OR FIND_IN_SET(87,subcat_id) OR FIND_IN_SET(29,77,88,16,subcat_id)) AND id!='250' ORDER BY RAND() limit 16