2 layers49.5 × 45.7 mm
2 layers49.5 × 45.7 mm
Python servo library for AX-12 and XL-320 smart servos
- Size
- 49.5 × 45.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 12
- Pads
- 71
- Tracks, vias
- 124, 8
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 17 Feb 2018
- Updated
- 25 Mar 2021
Overview
Serial is an open-source printed circuit board by MultipedRobotics, from the MultipedRobotics/pyservos repository on GitHub, published under the MIT licence. It is a 2-layer board of 49.5 × 45.7 mm with 29 parts on 12 nets, routed with 124 tracks and 8 vias.
It is built around the 74LVC1G125, 74LVC1G126Z and LM317, with the BSS138 among its other parts. Its parts include 7 connectors, 5 capacitors, 5 resistors, 5 ICs and 1 diode. It belongs with the robots and motor control and interfaces and adapters boards of this library.
Main components
4
74LVC1G125
SOT-353SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, Transceivers
74LVC1G126Z
SOT-553-5-40℃~+125℃ 1 1 1.65V~5.5V 200uA 2ns@3.3V,50pF 32mA 32mA 74LVC Tri-State Unidirectional SOT-553-5 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, Transceivers
LM317
SOT-223-40℃~+85℃@(Ta) 0.003%Vout 1 1.3V~37V 1A 40V 80dB@(120Hz) Adjustable Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
archive/serial-port-v3/readme.mdSerial Port
The serial interface talks to both AX-12 (12V power) and XL-320 (8V power) servos. The design uses SMD parts, but they are all hand solderable.
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Mounting_Holes:MountingHole_2.2mm_M2 | , , , | |
| 2 | 10k | Resistors_SMD:R_1206_HandSoldering | R4, R5 |
| 2 | 1uF | Capacitors_SMD:C_1206_HandSoldering | C1, C6 |
| 2 | 330 | Resistors_SMD:R_1206_HandSoldering | R1, R2 |
| 2 | AX-12A | Connectors_Molex:Molex_SPOX-5267_22-03-5035_03x2.54mm_Straight | J4, J6 |
| 2 | XL-320 | Connectors_Molex:Molex_MicroLatch-53253-0370_03x2.00mm_Straight | J3, J5 |
| 1 | .1 | Capacitors_SMD:C_1206_HandSoldering | C4 |
| 1 | 1 uF | Capacitors_SMD:C_1206_HandSoldering | C3 |
| 1 | 1.8k | Resistors_SMD:R_1206_HandSoldering | R3 |
| 1 | 10 | Capacitors_THT:CP_Radial_D6.3mm_P2.50mm | C2 |
| 1 | 12V Alt | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J7 |
| 1 | 12V Pwr | Connectors:BARREL_JACK | J1 |
| 1 | 74LVC1G125 | TO_SOT_Packages_SMD:SOT-23-5_HandSoldering | U5 |
| 1 | 74LVC1G126 | TO_SOT_Packages_SMD:SOT-23-5_HandSoldering | U4 |
| 1 | BSS138 | TO_SOT_Packages_SMD:SOT-23_Handsoldering | Q1 |
| 1 | LM317 | TO_SOT_Packages_THT:TO-220-3_Horizontal | U2 |
| 1 | MCP1703-3V3 | TO_SOT_Packages_SMD:SOT-23_Handsoldering | U3 |
| 1 | MCP1703-5V | TO_SOT_Packages_SMD:SOT-23_Handsoldering | U6 |
| 1 | OSHW-Logo_7.5x8mm_SilkScreen | Symbols:OSHW-Logo_7.5x8mm_SilkScreen | |
| 1 | PWR | LEDs:LED_1206_HandSoldering | D1 |
| 1 | Serial | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J2 |
Questions
How big is the Serial PCB?
It measures 49.5 × 45.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Serial use?
29 parts, built around the 74LVC1G125, 74LVC1G126Z, LM317 and BSS138. 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.
Where can I download the Serial KiCad files?
From the MultipedRobotics/pyservos repository on GitHub, at the commit this page was made from: the board is serial-port-v4/serial.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Serial design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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