Quantity   Component name
1 × HT4928S LiPo management chip with internal booster circuit
1 × Raspberry Pi zero W The brain of the device
1 × SL2.1A Low power USB 2.0 hub in SOP package
1 × 12Mhz crystal in SMT package
2 × 5.1K Resistor For type C 5V sink, conencted to CC1 and CC2
3 × 10uF capacitors For USB hub 3.3V regulator and the LiPo management chip, 0805 package
1 × 22uF capacitors For type C input filtering
1 × White LED 0805 package for indicating the charging state
1 × 4.7UH Inductor For voltage step up circuit, used by HT4928S
3 × USB 2.0 female jack For downstream USB devices
1 × Type C (6P) For charging
1 × 2.54 3 pins Switch For physical power switching
1 × ArOZ Portable main PCB Gluing everything together
1 × Lithium Polymer Battery (LiPo) 2000mAh or above is recommended