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

# schematic

![schematics](./schematics-v0.1.png)

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

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

# bill of materials

| Reference              | Value                         | Footprint                                                           | Qty | DNP |
| ---------------------- | ----------------------------- | ------------------------------------------------------------------- | --- | --- |
| 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,C5,C6               | 0.1µF                         | Capacitor_SMD:C_0805_2012Metric                                     | 3   |     |
| C7,C10,C11,C12,C13,C14 | 1µF                           | Capacitor_SMD:C_0805_2012Metric                                     | 6   |     |
| C8                     | 10µF                          | Capacitor_SMD:C_0805_2012Metric                                     | 1   |     |
| C9                     | 22µF                          | Capacitor_SMD:C_0805_2012Metric                                     | 1   |     |
| J1                     | USB_C_Receptacle_PowerOnly_6P | My_footprint:CUI_UJC-VP-3-SMT-TR                                    | 1   |     |
| J2                     | serial pads                   | My_footprint:pad-probe_1x04_P1.27mm_Vertical                        | 1   |     |
| J3                     | ICSP like pads                | My_footprint:pad-probe_2x03_P1.27mm_Vertical                        | 1   |     |
| J4                     | oled                          | Connector_FFC-FPC:Hirose_FH12-14S-0.5SH_1x14-1MP_P0.50mm_Horizontal | 1   |     |
| J5,J6                  | Conn_01x01_Pin                | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical          | 2   |     |
| L1                     | 560nH                         | Inductor_SMD:L_0805_2012Metric                                      | 1   |     |
| L2                     | 1µH                           | Inductor_SMD:L_0805_2012Metric                                      | 1   |     |
| Q1                     | FS8205A                       | Package_SO:TSSOP-8_4.4x3mm_P0.65mm                                  | 1   |     |
| Q2                     | AO3400A                       | Package_TO_SOT_SMD:SOT-23                                           | 1   |     |
| Q3                     | AO3401A                       | Package_TO_SOT_SMD:SOT-23                                           | 1   |     |
| R1                     | 2K                            | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| R2                     | 390k                          | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| R3,R13                 | 10k                           | Resistor_SMD:R_0805_2012Metric                                      | 2   |     |
| R4                     | 1k                            | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| R5                     | 100                           | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| R6,R7,R8               | 10K                           | Resistor_SMD:R_0805_2012Metric                                      | 3   |     |
| R10                    | 732k                          | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| R11                    | 100k                          | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| R12                    | 100r                          | Resistor_SMD:R_0805_2012Metric                                      | 1   |     |
| SW1,SW2,SW3            | SW_Push                       | -- mixed values --                                                  | 3   |     |
| U1                     | TP4056                        | Package_SO:SOP-8_3.76x4.96mm_P1.27mm                                | 1   |     |
| U2                     | DW01A                         | Package_TO_SOT_SMD:SOT-23-6                                         | 1   |     |
| U3                     | ATmega328P-A                  | Package_QFP:TQFP-32_7x7mm_P0.8mm                                    | 1   |     |
| U5                     | TPS61022                      | Package_DFN_QFN:Texas_RWU0007A_VQFN-7_2x2mm_P0.5mm                  | 1   |     |