2 layers101.6 × 53.3 mm
BatteryAnalyzer MkII
Moragor/BatteryAnalyzer_MkII
Updated Version of the battery analyzer, now with constant current
25 parts12MIT
2 layers124.4 × 90.9 mm
Lemons Data Acquisition System
maxtk4/Lemons-Data-AcquisitionData Acquisition System PCB for 24 Hour of Lemons Car
- Size
- 124.4 × 90.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 75
- Pads
- 260
- Tracks, vias
- 606, 98
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Mar 2026
- Updated
- 5 May 2026
Overview
Lemons Data Acquisition System is an open-source printed circuit board by maxtk4, from the maxtk4/Lemons-Data-Acquisition repository on GitHub. It is a 2-layer board of 124.4 × 90.9 mm with 82 parts on 75 nets, routed with 606 tracks and 98 vias.
It is built around the NODEMCU-32SLUA and TLV2372IP. Its parts include 24 resistors, 18 capacitors, 13 connectors and 6 ICs. It belongs with the ESP8266 boards of this library.
Main components
2
NODEMCU-32SLUA
-- WiFi Modules ROHSAi-ThinkerWiFi Modules
TLV2372IP
PDIP-8-40℃~+125℃ -8V~-1.35V、1.35V~8V 16mA 1pA 1pA 2 2.1V/us 2.7V~16V 2uV/℃ 35nV/√Hz@10kHz 3MHz 4.5mV 550uA 84dB Enable/shutdown function、Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output PDIP-8 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1u | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C4, C5, C7, C8, C10, C11, C13, C14, C15 |
| 10 | 220k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R7, R8, R11, R12, R15, R16, R19, R20 |
| 7 | 15k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R5, R9, R13, R17, R21, R23 |
| 7 | 3.3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R6, R10, R14, R18, R22, R24 |
| 7 | ~ | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP7, JP8 |
| 6 | TLV2372 | Package_DIP:DIP-8_W7.62mm | U1, U2, U3, U4, U5, U6 |
| 5 | 47n | Capacitor_THT:C_Disc_D6.0mm_W4.4mm_P5.00mm | C2, C3, C6, C9, C12 |
| 5 | A1 Filtered | TestPoint:TestPoint_Pad_1.5x1.5mm | TP3, TP5, TP7, TP8, TP10 |
| 5 | A1 Scaled | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2, TP4, TP6, TP9 |
| 3 | 47uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C16, C17, C18 |
| 2 | 28L0138-40R-10 | Inductor_THT:L_Axial_L9.5mm_D4.0mm_P12.70mm_Horizontal_Fastron_SMCC | FB1, FB2 |
| 2 | NodeMCU-32S | Connector_PinHeader_2.54mm:PinHeader_1x19_P2.54mm_Vertical | J1, J2 |
| 1 | 3.3V Regulator | Connector_Molex:Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J9 |
| 1 | 5V Regulator | Connector_Molex:Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J12 |
| 1 | D1 Scaled | TestPoint:TestPoint_Pad_1.5x1.5mm | TP13 |
| 1 | D2 Scaled | TestPoint:TestPoint_Pad_1.5x1.5mm | TP14 |
| 1 | External Sensor Connector | Connector_Molex:Molex_Micro-Fit_3.0_43045-1400_2x07_P3.00mm_Horizontal | J8 |
| 1 | GPS Connector | Connector_Molex:Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J3 |
| 1 | I2C Sensors | Connector_Molex:Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J6 |
| 1 | Pot 1 | Connector_Molex:Molex_Micro-Fit_3.0_43650-0300_1x03_P3.00mm_Horizontal | J4 |
| 1 | Pot 2 | Connector_Molex:Molex_Micro-Fit_3.0_43650-0300_1x03_P3.00mm_Horizontal | J13 |
| 1 | Pot 3 | Connector_Molex:Molex_Micro-Fit_3.0_43650-0300_1x03_P3.00mm_Horizontal | J5 |
| 1 | Pot 4 | Connector_Molex:Molex_Micro-Fit_3.0_43650-0300_1x03_P3.00mm_Horizontal | J10 |
| 1 | SD Card Connector | Connector_Molex:Molex_Micro-Fit_3.0_43045-0600_2x03_P3.00mm_Horizontal | J11 |
| 1 | Telemetry Connector | Connector_Molex:Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J7 |
Questions
How big is the Lemons Data Acquisition System PCB?
It measures 124.4 × 90.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lemons Data Acquisition System use?
82 parts, built around the NODEMCU-32SLUA and TLV2372IP. 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 Lemons Data Acquisition System KiCad files?
From the maxtk4/Lemons-Data-Acquisition repository on GitHub, at the commit this page was made from: the board is Lemons Data Acquisition System.kicad_pcb and its schematic Lemons Data Acquisition System.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lemons Data Acquisition System design in my own project?
Its repository states no licence, so its author keeps all rights: ask maxtk4 before reusing the design.
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