Quantity   Component name
1 × Smart Response SE Surplus remote device with CC2533 uC and often found on eBay
1 × SDCC Compiler/Linker: https://sdcc.sourceforge.net/
1 × CC Debugger (flash programmer) TI or similar: https://www.ti.com/tool/CC-DEBUGGER
1 × TI software for CC Debugger: https://www.ti.com/tool/FLASH-PROGRAMMER (not V2)