2 layers78 × 47 mm
2 layers124.5 × 68 mm
ESP32 power connections V2
LASSITOS/LEM_LASSITOS- Size
- 124.5 × 68 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 153
- Nets
- 137
- Pads
- 502
- Tracks, vias
- 990, 165
- Pours
- 17
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 27 Nov 2024
- Updated
- 10 Jun 2025
Overview
ESP32 power connections V2 is an open-source printed circuit board by LASSITOS, from the LASSITOS/LEM_LASSITOS repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 124.5 × 68 mm with 153 parts on 137 nets, routed with 990 tracks and 165 vias.
It is built around the MP2317GJ-Z, ADP3339AKCZ-3.3-R7 and ADP3339AKCZ-5-R7, with the MAX6007AEUR+T, SC16IS762IPW and ABM8-14.7456MHZ-12-D1X-T among its other parts. Its parts include 31 capacitors, 31 connectors, 26 resistors, 10 ICs and 2 inductors. It belongs with the ESP32 boards of this library.
Main components
11
MP2317GJ-Z
TSOT-23-6-40℃~+125℃@(TJ) 1 150uA 1A 600kHz 7.5V~26V Adjustable Buck Buck Built-in Yes TSOT-23-6 DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
ADP3339AKCZ-3.3-R7
SOT-223-40℃~+85℃@(Ta) 1 1.5A 130uA 230mV@(1.5A) 3.3V 6V 95uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAnalog DevicesVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsADP3339AKCZ-5-R7
SOT-223-40℃~+85℃@(Ta) 1 1.5A 130uA 480mV@(1.5A) 5V 6V 95uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAnalog DevicesVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MAX6007AEUR+T
SOT-23-3-40℃~+85℃@(Ta) 1uA 2.048V 2mA 30ppm/℃ 50uVp-p Fixed Parallel ±0.2% SOT-23-3 Voltage Reference ROHSMaxim Integrated (Analog Devices)Voltage Reference
SC16IS762IPW
TSSOP-28-40℃~+95℃ 2 2.5V、3.3V 5Mbps 64Byte UART、I2C、SPI With automatic flow control、With IrDA Encoder/Decoder、Configurable GPIO TSSOP-28 UART ROHSNXP SemiconductorsUART
ABM8-14.7456MHZ-12-D1X-T
SMD3225-4P-40℃~+85℃ 120Ω 12pF 14.7456MHz ±10ppm ±20ppm SMD3225-4P Crystals ROHSAbraconCrystals
AP2120N-3.3TRG1
SOT-23-40℃~+85℃@(Tj) 1 150mA 200mV@(100mA) 25uA 3.3V 30uVrms 65dB@(1kHz) 6V Fixed Over Current Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsG125-MV11205L1P
插件-65℃~+150℃ 1.25mm 1.25mm 12P 2 250V 2A 2x6P 6 Gold Green Phosphor bronze Through Hole UL94V-0 插件 Wire To Board Connector ROHSHarwinWire To Board ConnectorMSS-102559-14A-D
插件-40℃~+85℃ 2,000 cycles 24V 300mA PC Pin Rectangular Columnar SPDT Through Hole Plugin Slide Switches ROHSCUISlide Switches
SMA-J-P-H-ST-TH1
插件-65℃~+125℃ 1 20GHz 335V 50Ω Board Side Inner pin Positive Pin SMA 插件 Coaxial Connectors (RF) ROHSSamtecCoaxial Connectors (RF)
V18
插件,D2.1xL6.5mmThermal Fuses (TCO)SETsafe | SETfuse
README
README.mdLEM_LASSITOS
This repository contains the open source code, and plans for the LEM sounder develped as part of the LASSITOS project.
I should add some informations here
Construction of LEM
Operating the LEM
LEM commands
Data link LEM and UAV
The LEM Radio Link (LoRa 900MHz) is used to communicate to the LEM during measurements. The user can send control commands (START, STOP, SETFREQ,... ) connecting via serial bluetooth or USB serial to the LEM_Base. The LEM commands are transmitted over a own NMEA message ($LEMMS,...). This allows to separate them from the RTK message stream that is transmitted over the same channel. The RTK messages can be passed to the LEM_Base over Serial UART (3.3V) or USB. Only one GPS base station can be used if the RTK stream is split on the laptop between then LEM and UAV. See schematics below for passing RTK correction over UART (option1) or splitting on Laptop and passing over USB (Option2).
Data download
ESP32 data: Laser, IMU, general
LEM raw data
Data Postprocessing
Parts
153| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | ~ | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP10, JP11, JP12, JP13, JP14, JP15, JP16, JP17, JP18, JP19, JP20, JP21, JP22, JP23, JP24, JP25 +5 |
| 20 | ~ | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP1, TP2, TP3, TP4, TP5, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20 +4 |
| 9 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C13, C14, C15, C16, C23 |
| 8 | 10uF | Capacitor_SMD:C_0603_1608Metric | C24, C25, C26, C27, C28, C29, C30, C31 |
| 7 | ~ | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP1, JP2, JP3, JP4, JP5, JP7, JP8 |
| 6 | 22uF | Capacitor_SMD:C_0805_2012Metric | C9, C10, C17, C19, C21, C22 |
| 4 | 12.1K | Resistor_SMD:R_0603_1608Metric | R17, R18, R20, R22 |
| 4 | 220 | Resistor_SMD:R_0603_1608Metric | R5, R6, R7, R8 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R9, R10, R25 |
| 2 | 10pF | Capacitor_SMD:C_0603_1608Metric | C18, C20 |
| 2 | 10uH | library_components:WE-XH 8080 | L1, L2 |
| 2 | 18pF | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 50 | Capacitor_SMD:C_0805_2012Metric | R4, R26 |
| 2 | 794120-1 | library_components:794120-1 | J31, J32 |
| 2 | 80.6K | Resistor_SMD:R_0603_1608Metric | R21, R23 |
| 2 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J7, J21 |
| 2 | GPIO 1 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4, J5 |
| 2 | I2C_JST | library_components:CONN_BM04B-SRSS-TB(LF)(SN) | J10, J13 |
| 2 | MP2317GJ-Z | library_components:TSOT23-6_MPS_MNP | U3, U5 |
| 2 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2 |
| 2 | NP | Capacitor_SMD:C_0805_2012Metric | C11, C12 |
| 2 | V6 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J19, J22 |
| 1 | 0.01uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 0.1 uF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R12 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 2M | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 500k | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | 8.1.6k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 82.5k | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 90k | Resistor_SMD:R_0603_1608Metric | R24 |
| 1 | ABM8-14.7456MHz-12-D1X-T | SamacSys_Parts:ABM810000MHZ12D2W | Y1 |
| 1 | ADP3339AKCZ-3.3-R7 | library_components:SOT230P700X180-4N | IC3 |
| 1 | ADP3339AKCZ-5-R7 | library_components:SOT230P700X180-4N | IC2 |
| 1 | AP2120N-3.3TRG1 | library_components:SOT96P240X120-3N | PS1 |
| 1 | CLK_DAC CLK | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J29 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J17 |
| 1 | Conn_01x21 | Connector_PinHeader_2.54mm:PinHeader_1x21_P2.54mm_Vertical | J8 |
| 1 | DAC + AMP I2C | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J30 |
| 1 | DMG4407SSS-13 | library_components:SO8_DIO | U6 |
| 1 | DNP | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | G125-MV11205L1P | library_components:G125-MV11205L1P | J1 |
| 1 | GND | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | I2C_1 | library_components:5-104363-3 | J9 |
| 1 | L78L06ACUTR | SamacSys_Parts:L78L06ACUTR | IC4 |
| 1 | LT1495IS8-TRPBF | library_components:SO-8_S_LIT-M | U4 |
| 1 | Left connector ESP32 | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical | J11 |
| 1 | MAX3221EIDBR | SamacSys_Parts:SOP65P780X200-16N | IC1 |
| 1 | MAX6007AEUR+T | library_components:21-0051H_MXM | U2 |
| 1 | MSS-102559-14A-D | library_components:SW_MSS-102559-14A-D | S1 |
| 1 | Right connector ESP32 | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J24 |
| 1 | Right connector to Microcontroller | Connector_PinHeader_2.54mm:PinHeader_1x18_P2.54mm_Vertical | J16 |
| 1 | SC16IS762IPW | Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm | U1 |
| 1 | SMA-J-P-H-ST-TH1 | SamacSys_Parts:SMAJPHSTTH1 | J23 |
| 1 | SPI | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J28 |
| 1 | UART_RTK | library_components:5-104363-3 | J12 |
| 1 | UART_Radio | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J14 |
| 1 | UART_Radio2 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J15 |
| 1 | USB_IMX5 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | V18 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J18 |
| 1 | V3.3 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J20 |
| 1 | V5.0 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J26 |
| 1 | V6_ ana | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J25 |
| 1 | V_Bat | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J27 |
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Questions
How big is the ESP32 power connections V2 PCB?
It measures 124.5 × 68 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP32 power connections V2 use?
153 parts, built around the MP2317GJ-Z, ADP3339AKCZ-3.3-R7, ADP3339AKCZ-5-R7 and MAX6007AEUR+T. 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 ESP32 power connections V2 KiCad files?
From the LASSITOS/LEM_LASSITOS repository on GitHub, at the commit this page was made from: the board is Construction/KiCAD/ESP32_power_connections_V2/ESP32_power_connections_V2.kicad_pcb and its schematic Construction/KiCAD/CSwitch_CalCoilV2/CSwitch_CalCoilV2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 power connections V2 design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).