4 layers48.5 × 33.5 mm
2 layers35 × 35 mm
DuplexUARTtoHalf
freudenthal/DuplexToHalfUARTA single PCB to convert full duplex (RX, TX) to half duplex (only 'data') for controlling UART serial servos.
- Size
- 35 × 35 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 15
- Pads
- 70
- Tracks, vias
- 174, 12
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 Nov 2024
- Updated
- 19 Nov 2024
Overview
DuplexUARTtoHalf is an open-source printed circuit board by freudenthal, from the freudenthal/DuplexToHalfUART repository on GitHub. It is a 2-layer board of 35 × 35 mm with 29 parts on 15 nets, routed with 174 tracks and 12 vias.
It is built around the SN74LVC1G125DCK, SN74LVC1G126DCK and MAX40200AUK. Its parts include 10 resistors, 7 connectors, 4 capacitors, 4 diodes and 3 ICs. It belongs with the interfaces and adapters boards of this library.
Main components
3
SN74LVC1G125DCK
SC-70-5-40℃~+125℃ 0.6ns@3.3V,15pF 1 1 1.65V~5.5V 10uA 32mA 32mA 74LVC Tri-State Unidirectional SC-70-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
SN74LVC1G126DCK
SC-70-5-40℃~+125℃ 1 1 1.65V~5.5V 10uA 3.7ns@3.3V,15pF 32mA 32mA 74LVC Tri-State Unidirectional SC-70-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
MAX40200AUK
SOT23-5Ultra-Tiny Micropower, 1A Ideal Diode with Ultra-Low Voltage DropMaxim Integrated (Analog Devices)Uncategorised
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10kΩ | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | J1, J2, J3, J4 |
| 3 | 100V | Package_TO_SOT_SMD:SOT-23-3 | D1, D2, D3 |
| 3 | 100Ω | Resistor_SMD:R_0805_2012Metric | R6, R7, R8 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 1 | 100kΩ | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 20kΩ | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 500Ω | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D4 |
| 1 | MAX40200AUK | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | Q_PNP_BEC | Package_TO_SOT_SMD:SOT-23-3 | Q1 |
| 1 | SERVO | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | SN74LVC1G125DCK | Package_TO_SOT_SMD:Texas_R-PDSO-G5_DCK-5 | U2 |
| 1 | SN74LVC1G126DCK | Package_TO_SOT_SMD:Texas_R-PDSO-G5_DCK-5 | U1 |
| 1 | V_{SERVO} | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | uC | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
Questions
How big is the DuplexUARTtoHalf PCB?
It measures 35 × 35 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DuplexUARTtoHalf use?
29 parts, built around the SN74LVC1G125DCK, SN74LVC1G126DCK and MAX40200AUK. 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 DuplexUARTtoHalf KiCad files?
From the freudenthal/DuplexToHalfUART repository on GitHub, at the commit this page was made from: the board is DuplexUARTtoHalf.kicad_pcb and its schematic DuplexUARTtoHalf.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DuplexUARTtoHalf design in my own project?
Its repository states no licence, so its author keeps all rights: ask freudenthal before reusing the design.
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