Case for CC2530 and TTL modules for use with Zigbee2MQTT
Boards available
...Plus here
https://www.aliexpress.com/item/CC2530-Zigbee-Module-UART-Wireless-Core-Board-Development-Board-CC2530F256-Serial-Port-Wireless-Module-2-4GHz/32767470382.html
https://www.aliexpress.com/item/FT232RL-USB-to-Serial-adapter-module-Mini-USB-TO-RS232-For-Arduino-pro-mini/32663294054.html