2 layers143.8 × 80 mm
Ecu
kajusK/Pneumobil
Control and telemetry system for BUT Falcon pneumobil for Aventics Pneumobil competition
269 parts
2 layers113 × 87.3 mm
Power quality analyzer
- Size
- 113 × 87.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 98
- Nets
- 90
- Pads
- 277
- Tracks, vias
- 377, 0
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 21 Oct 2025
- Updated
- 3 Oct 2026
Overview
Pqa is an open-source printed circuit board by tio-checo, from the tio-checo/pqa repository on GitHub. It is a 2-layer board of 113 × 87.3 mm with 98 parts on 90 nets, routed with 377 tracks and 0 vias.
It is built around the TS1117BCW33 and LL4148. Its parts include 34 resistors, 30 capacitors, 13 diodes, 6 connectors and 4 ICs. It belongs with the ESP32 boards of this library.
Main components
2
TS1117BCW33
SOT-223Over Current Protection、Thermal Shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTaiwan SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
Parts
98| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C10, C11, C12, C13, C14, C15, C17, C19, C21, C23, C24, C25, C26, C27, C30 +5 |
| 12 | LL4148 | Diode_SMD:D_MiniMELF | D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13 |
| 9 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R8, R9, R10, R13, R14, R15, R18, R19, R20 |
| 8 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R26, R27, R28, R29, R30, R31, R34 |
| 7 | 10uF/10V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C16, C18, C20, C22, C28, C29 |
| 6 | 470R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12, R16, R17, R21, R22 |
| 4 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4 |
| 3 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R24, R25 |
| 3 | ARK1x2 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J4, J5, J6 |
| 3 | AudioJack3_SwitchTR | tio_library:Jack_3.5mm_ST214-C_Horizontal | J1, J2, J3 |
| 3 | Varistor | Varistor:RV_Disc_D9mm_W3.5mm_P5mm | RV1, RV2, RV3 |
| 2 | 10R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R32, R33 |
| 2 | 15pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3 |
| 2 | TS1117BCW33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3, U4 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 4194304 | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | BLM21AG121SN1D | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1 |
| 1 | DBG | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | TP2 |
| 1 | ESP32-S3-Dev-Kit-NXR8 | tio_library:ESP32-S3-Dev-Kit-NXR8 | U1 |
| 1 | GND | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | TP1 |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | MCP3913-SS | tio_library:SSOP-28_5.3x10.2mm_P0.65mm_12mil | U2 |
The 94 most common of 98 parts.
Questions
How big is the Pqa PCB?
It measures 113 × 87.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pqa use?
98 parts, built around the TS1117BCW33 and LL4148. 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 Pqa KiCad files?
From the tio-checo/pqa repository on GitHub, at the commit this page was made from: the board is hw/pqa/pqa.kicad_pcb and its schematic hw/pqa/pqa.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pqa design in my own project?
Its repository states no licence, so its author keeps all rights: ask tio-checo before reusing the design.
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