V Box
=====
custom boxmod chipset from scratch

[firmware](https://figureslibres.io/gitea/bachir/vbox-firmware)

# schematic

![schematics](./schematics-v0.3.2.png)

# 3D
![front](./boxmod-3Dview-front.png)

![rear](./boxmod-3Dview-rear.png)

# bill of materials

| Reference              | Value                 | Footprint                                                  | Qty |
|------------------------|-----------------------|------------------------------------------------------------|-----|
| BT1                    | Liion 18650           | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | 1   |
| C1,C2,C3               | 0.1µf                 | Capacitor_SMD:C_0805_2012Metric                            | 3   |
| C4,C10,C11,C12,C13,C14 | 1µF                   | Capacitor_SMD:C_0805_2012Metric                            | 6   |
| C5                     | 10µF                  | Capacitor_SMD:C_0805_2012Metric                            | 1   |
| C6,C15                 | 22pF                  | Capacitor_SMD:C_0805_2012Metric                            | 2   |
| C7,C20,C21             | 0.1µF                 | Capacitor_SMD:C_0805_2012Metric                            | 3   |
| C16,C17                | 1µf                   | Capacitor_SMD:C_0805_2012Metric                            | 2   |
| DS1                    | OLED-DD-9616BE-3A     | My_footprint:oled DD-9616BE-3A_fliped(folded)              | 1   |
| J4,J5                  | Conn_01x01_Pin        | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | 2   |
| J6                     | GCT_USB4120-03-C_REVA | My_footprint:GCT_USB4120-03-C_REVA                         | 1   |
| L1                     | 560nH                 | Inductor_SMD:L_0805_2012Metric                             | 1   |
| Q1                     | FS8205A               | Package_SO:TSSOP-8_4.4x3mm_P0.65mm                         | 1   |
| Q3,Q6                  | AO3401A               | Package_TO_SOT_SMD:SOT-23                                  | 2   |
| Q4                     | BSS138                | Package_TO_SOT_SMD:SOT-23                                  | 1   |
| R1                     | 2K                    | Resistor_SMD:R_0805_2012Metric                             | 1   |
| R2                     | 390k                  | Resistor_SMD:R_0805_2012Metric                             | 1   |
| R3,R6,R7,R15,R18       | 10k                   | Resistor_SMD:R_0805_2012Metric                             | 5   |
| R4                     | 1k                    | Resistor_SMD:R_0805_2012Metric                             | 1   |
| R5                     | 100                   | Resistor_SMD:R_0805_2012Metric                             | 1   |
| R9                     | 1r                    | Resistor_SMD:R_0805_2012Metric                             | 1   |
| R14,R16                | 100r                  | Resistor_SMD:R_0805_2012Metric                             | 2   |
| SW1,SW2,SW3            | SW_Push               | -- mixed values --                                         | 3   |
| U1                     | TP4056                | My_footprint:SOP127P600X175-9N                             | 1   |
| U2                     | DW01A                 | Package_TO_SOT_SMD:SOT-23-6                                | 1   |
| U3                     | ATSAMD21G18A-A        | Package_QFP:TQFP-48_7x7mm_P0.5mm                           | 1   |
| U4                     | AP2112K-3.3           | Package_TO_SOT_SMD:SOT-23-5                                | 1   |
| Y1                     | Crystal               | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm                    | 1   |