Quantity   Component name
2 × LPC2148 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × CH376S USB host chip, can be used to interface with mass storage devices, USB keyboards, USB mice and other peripherals
1 × FS1000A RF Transmitter and Receiver module Plug-and-play RF module. Interface to the LPCs through UART.
10 × Jumper wires Approximate number
1 × PS/2 keyboard decoder https://www.rhydolabz.com/interfacing-modules-c-80/pc-keyboard-decoder-p-1732.html
2 × Breadboard Electronic Components / Misc. Electronic Components
1 × PS/2 Keyboard Connected to the decoder.