Quantity   Component name
1 × TP4056 LiIon Charger
4 × 2N2222 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBT
1 × TTP223 Capacitive Touch IC
1 × MSP430G2553 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers