owenbharrison/bubble_watchkicad/arduino source for vintage bubble display watch project
Bubble watch is an open-source printed circuit board by owenbharrison, from the owenbharrison/bubble_watch repository on GitHub. It is a 2-layer board of 45 × 45 mm with 40 parts on 54 nets, routed with 703 tracks and 73 vias.
It is built around the ATTINY85V-10PU and 74HC595. Its parts include 17 resistors, 5 ICs, 4 switches, 2 capacitors and 1 crystal. It belongs with the wearables boards and the AVR (ATmega, ATtiny) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 4k7 | Resistor_SMD:R_0603_1608Metric | R1, R2, R9, R11, R12, R13, R14, R15, R16 |
| 8 | 330 | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R6, R7, R8, R9, R10 |
| 2 | 5p6 | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 74HC595 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U2, U4 |
| 1 | + | TestPoint:TestPoint_Pad_D1.5mm | TP8 |
| 1 | - | TestPoint:TestPoint_Pad_D1.5mm | TP4 |
| 1 | 0 | TestPoint:TestPoint_Pad_D1.5mm | TP5 |
| 1 | 1 | TestPoint:TestPoint_Pad_D1.5mm | TP6 |
| 1 | 2 | TestPoint:TestPoint_Pad_D1.5mm | TP7 |
| 1 | 3 | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | 32768Hz | Library:Crystal_DS26_D2.0mm_L6.0mm_Horizontal | Y1 |
| 1 | 4 | TestPoint:TestPoint_Pad_D1.5mm | TP3 |
| 1 | ATtiny85V-10P | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | Battery_Cell | Battery:BatteryHolder_Multicomp_BC-2001_1x2032 | BT1 |
| 1 | Dec | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW3 |
| 1 | Free | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW4 |
| 1 | Inc | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW2 |
| 1 | Left | Library:BUBBLE3 | DS1 |
| 1 | MCP23008-xSS | Package_SO:SSOP-20_5.3x7.2mm_P0.65mm | U3 |
| 1 | MCP7940N-xSN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | Mode | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW1 |
| 1 | R | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | Right | Library:BUBBLE3 | DS2 |
It measures 45 × 45 mm and has 2 copper layers, 1.6 mm thick.
40 parts, built around the ATTINY85V-10PU and 74HC595. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the owenbharrison/bubble_watch repository on GitHub, at the commit this page was made from: the board is bubble_watch.kicad_pcb and its schematic bubble_watch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask owenbharrison before reusing the design.
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