Skelebot/bitsCollection of notes and small stuff.
Servo hw is an open-source printed circuit board by Skelebot, from the Skelebot/bits repository on GitHub. It is a 2-layer board of 33.5 × 39.7 mm with 50 parts on 40 nets, routed with 221 tracks and 16 vias.
It is built around the PCA82C250T/YM, 1N4148W and STPS1L30A, with the BC807 and SI2302CDS among its other parts. Its parts include 16 capacitors, 14 resistors, 5 diodes, 4 ICs and 3 connectors. It belongs with the robots and motor control boards and the STM32 boards of this library.
Collection of notes and small stuff.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C6, C7, C13, C16 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4, R5, R6, R8, R9 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8, C10, C11, C12 |
| 3 | 1.5k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R10 |
| 2 | 10uF / 25V | Capacitor_SMD:CP_Elec_4x5.3 | C14, C15 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D2, D4 |
| 2 | STPS1L30A | Diode_SMD:D_SMA_Handsoldering | D5, D6 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 10 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 300k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14 |
| 1 | 33uH / 22uH | Transformer_THT:Transformer_Toroid_Horizontal_D10.5mm_Amidon-T37 | L1 |
| 1 | 47pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | 48uF / 100V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C5 |
| 1 | 50m | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 1 | 56k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15 |
| 1 | BC807 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | Julet | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | LED | LED_THT:LED_D3.0mm | D3 |
| 1 | PCA82C250 | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | SCL | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | SDA | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | STM32F042F6Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | Si2302CDS | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | USB | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | VUSB | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U4 |
| 1 | servo | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | ~ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
It measures 33.5 × 39.7 mm and has 2 copper layers, 1.6 mm thick.
50 parts, built around the PCA82C250T/YM, 1N4148W, STPS1L30A and BC807. 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 Skelebot/bits repository on GitHub, at the commit this page was made from: the board is servo/servo-hw/servo-hw.kicad_pcb and its schematic servo/servo-hw/servo-hw.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 Skelebot before reusing the design.
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