4 layers113 × 25.1 mm
Ssense lte
fredriknk/ssense-lte
This is the kicad template i use for my projects. The latest addition is a buildoutputs.py automating picture generation, 3d models and sch/prints, Gerbers ETC! Pretty sweet!
123 partsMIT
4 layers91 × 30 mm
Methanesense
fredriknk/msenseOpen Source hardware kicad source files for a NRF9160 based methane sensor utilizing MOX sensor.
- Size
- 91 × 30 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 145
- Nets
- 140
- Pads
- 540
- Tracks, vias
- 1,195, 476
- Pours
- 45
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Jul 2024
- Updated
- 22 Aug 2025
Overview
Methanesense is an open-source printed circuit board by fredriknk, from the fredriknk/msense repository on GitHub, published under the MIT licence. It is a 4-layer board of 91 × 30 mm with 145 parts on 140 nets, routed with 1,195 tracks and 476 vias.
It is built around the ADS1115IDGSR, BME680 and LV2862XLVDDCR, with the TPS22917DBV, USBLC6-4SC6 and NPM1300-QEAA-R7 among its other parts. Its parts include 35 capacitors, 35 resistors, 11 diodes, 6 ICs and 6 connectors.
Main components
12
ADS1115IDGSR
VSSOP-10-40℃~+125℃ 16 1LSB 2 2.048V 2V~5.5V 500nA 860Hz 8Hz、16Hz、32Hz、64Hz、128Hz、250Hz、475Hz、860Hz Built-in Built-in I2C Sigma-Delta Support Yes VSSOP-10 Analog to Digital Converters (ADC) ROHSTexas InstrumentsAnalog To Digital Converters (ADC)
BME680
LGA-8-40℃~+85℃ 0.12hpa 0.6hpa 1.3pa/K 1.71V~3.6V 150nA 30Kpa~1.1bar I2C、SPI Temperature Sensor LGA-8 Pressure Sensors ROHSBosch SensortecPressure Sensors
LV2862XLVDDCR
SOT-23-6-40℃~+125℃@(TJ) 1 28uA 4V~60V 600mA 765mV~60V 770kHz Adjustable Buck Built-in No Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting Step-down type SOT-23-6 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS22917DBV
SOT-23-6-40℃~+125℃ 0V~5.5V 1 2A 80mΩ Active High Load Switch Output discharge function、Soft-start、Reverse current blocking SOT-23-6 Power Distribution Switches ROHSTexas InstrumentsPower Distribution SwitchesUSBLC6-4SC6
SOT-23-6-55℃~+125℃ 0.3pF 15V 300W@8/20us 4.7A@8/20us 5V 6V 80nA ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)NPM1300-QEAA-R7
QFN-32-EP(5x5)Adjustable current limiting、Light-load high efficiency mode、Output discharge QFN-32-EP(5x5) Power Management - Specialized ROHSNordic SemiconPower Management - Specialized
VJ0402D150FXCAJ
040215pF 200V ±1% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSVishay IntertechnologyMultilayer Ceramic Capacitors MLCC - SMD/SMT
SD0603S040S0R2
06031uA@40V 200mA 40V 450mV@200mA 0603 Schottky Diodes ROHSKyocera AVXSchottky DiodesCBR04C560F1GAC
0402100V 56pF ±1% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSKEMETMultilayer Ceramic Capacitors MLCC - SMD/SMT
FDS6898A
SOIC-8-55℃~+150℃ 1.821nF 14mΩ@4.5V 16nC 1V 2 N-Channel 208pF 20V 2W 9.4A SO-8 MOSFETs ROHSonsemiMOSFETs
U.FL-R-SMT-1
Up to 6GHz Ultra Small Surface Mount Male Coaxial Connectors U.FL SeriesHirose ElectricUncategorised
KMR223GLFG
SMD-40℃~+125℃ 1.9mm 10uA 2.8mm 200,000 Cycles 2N 32V 4.5mm Gull Wing Round Button SPST-NO Surface Mount,Vertical SMD Tactile Switches ROHSC&KTactile Switches
README
README.mdMethanesense
Open Source hardware kicad source files for a NRF9160 based methane sensor utilizing MOX sensor.
Low power design with about 60ua average current consumption measuring Methane, temp, pressure and humidity every 30 seconds, averaging values over 5 minute samples, and transmitting 11 readings every 55 minutes. estimated battery life is 4.5 years from a 3200mah 18650 liion cell
It has an option for a GPS if necessary, but this will cause reduced battery life.
FRONT
BACK
SIDE
Enclosure
Enclosure proposal. Simple 3d printed design snap lock, potential for epoxy fill for moisture resistance. But for now i just coat them in PLASTIK 70 conformal coating by Kontakt Chemie. DO REMEMBER TO SEAL SENSOR HOLES!!!
When 3d printing the enclosure, modify the two boxes in the sensor holes to be printed with gyroid infill with no walls or top/bottom to create the mesh. Enclosure files are in the 3D_MODEL folder.
Documentation
Before major commmits
Remember to run generate_outputs.bat/sh to update the outputs and pictures. readmetemplate
Parts
145| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C4, C13, C14, C32, C34, C36, C38 |
| 9 | 0R | Resistor_SMD:R_0603_1608Metric | R7, R21, R22, R26, R27, R28, R30, R34, R37 |
| 7 | 1uF | Capacitor_SMD:C_0603_1608Metric | C11, C16, C17, C20, C28, C31, C39 |
| 6 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C5, C6, C7, C15, C23, C25 |
| 5 | 1M | Resistor_SMD:R_0603_1608Metric | R10, R11, R17, R24, R25 |
| 4 | 0R | Resistor_SMD:R_0402_1005Metric | R6, R31, R32, R33 |
| 4 | 15pF | Methanesense:C_0402_1005Metric_Sqr | C26, C27, C33, C35 |
| 4 | 470R | Resistor_SMD:R_0603_1608Metric | R2, R3, R5, R12 |
| 4 | GND | TestPoint:TestPoint_Pad_D1.0mm | TP15, TP16, TP17, TP18 |
| 4 | SD0603S040S0R2 | Diode_SMD:D_0603_1608Metric | D3, D4, D5, D6 |
| 3 | 100R | Resistor_SMD:R_0603_1608Metric | R18, R19, R20 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R14, R16, R23 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C10, C12, C37 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D9, D10, D11 |
| 3 | MSS1P3L-M3/89A | Diode_SMD:D_MicroSMP_AK | D1, D2, D8 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R4, R8 |
| 2 | 47uF | Capacitor_SMD:C_0805_2012Metric | C21, C22 |
| 2 | 56pF | Methanesense:C_0402_1005Metric_Sqr | C29, C30 |
| 2 | FDS6898A | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Q1, Q2 |
| 2 | G*** | kibuzzard-680B71B4 | kibuzzard-680B71B4, kibuzzard-680B71B4 |
| 2 | HIROSE ELECTRIC U.FL-R-SMT-1 | Methanesense:U.FL_Hirose_U.FL-R-SMT-1_Vertical | J1, J4 |
| 2 | KMR223NGLFG | Methanesense:SW_Push_1P1T_NO_CK_KMR2 | SW1, SW3 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2 |
| 1 | 0805L110WR | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | 10k NTC | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | 12k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 150R | Resistor_SMD:R_0603_1608Metric | R29 |
| 1 | 15k | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 1nF | Capacitor_SMD:C_0603_1608Metric | C24 |
| 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C8 |
| 1 | 2.2uH | Inductor_SMD:L_1008_2520Metric | L3 |
| 1 | 22uH | Methanesense:L_Abracon_AMDLA4020S | L1 |
| 1 | 2V | TestPoint:TestPoint_Pad_D1.0mm | TP9 |
| 1 | 39NH | Methanesense:C_0402_1005Metric_Sqr | L2 |
| 1 | 56k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 5V | TestPoint:TestPoint_Pad_D1.0mm | TP8 |
| 1 | 68 nH | Methanesense:C_0402_1005Metric_Sqr | L8 |
| 1 | 68k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 693043020611 | Methanesense:693043020611 | J3 |
| 1 | ADS1115IDGST | Package_SO:TSSOP-10_3x3mm_P0.5mm | U2 |
| 1 | AIN0 | TestPoint:TestPoint_Pad_D1.0mm | TP12 |
| 1 | AIN1 | TestPoint:TestPoint_Pad_D1.0mm | TP11 |
| 1 | BH-18650-PC2 | Methanesense:BatteryHolder_MPD_BH-18650-PC2 | BT1 |
| 1 | BME680 | Package_LGA:Bosch_LGA-8_3x3mm_P0.8mm_ClockwisePinNumbering | U6 |
| 1 | Conn_01x13_Pin | Connector_PinHeader_2.54mm:PinHeader_1x13_P2.54mm_Vertical | J5 |
| 1 | G*** | kibuzzard-680B715D | kibuzzard-680B715D |
| 1 | G*** | kibuzzard-680B72A0 | kibuzzard-680B72A0 |
| 1 | G*** | kibuzzard-680B73D9 | kibuzzard-680B73D9 |
| 1 | G*** | kibuzzard-680B7297 | kibuzzard-680B7297 |
| 1 | G*** | kibuzzard-680B70A9 | kibuzzard-680B70A9 |
| 1 | G*** | kibuzzard-680B712B | kibuzzard-680B712B |
| 1 | G*** | kibuzzard-680B70F6 | kibuzzard-680B70F6 |
| 1 | G*** | kibuzzard-680B73BF | kibuzzard-680B73BF |
| 1 | G*** | kibuzzard-680B6FC7 | kibuzzard-680B6FC7 |
| 1 | G*** | kibuzzard-680B7325 | kibuzzard-680B7325 |
| 1 | G*** | kibuzzard-680B701D | kibuzzard-680B701D |
| 1 | G*** | kibuzzard-680B714A | kibuzzard-680B714A |
| 1 | G*** | kibuzzard-680B70C8 | kibuzzard-680B70C8 |
| 1 | G*** | kibuzzard-680B72EC | kibuzzard-680B72EC |
| 1 | G*** | kibuzzard-680B72CB | kibuzzard-680B72CB |
| 1 | G*** | kibuzzard-680A1FD4 | kibuzzard-680A1FD4 |
| 1 | HEAT | TestPoint:TestPoint_Pad_D1.0mm | TP14 |
| 1 | I1 | TestPoint:TestPoint_Pad_D1.0mm | TP10 |
| 1 | IEC61076-2_M8_A-coding_01x04_Receptacle_Shielded | Methanesense:STEWART_SS-12800-004_M8_04_Socket_Right_Angle | J2 |
| 1 | IO1 | TestPoint:TestPoint_Pad_D1.0mm | TP6 |
| 1 | IO2 | TestPoint:TestPoint_Pad_D1.0mm | TP7 |
| 1 | JLINK | esprelay:SEXY_pinpogo | J6 |
| 1 | LG L29K-G2J1-24-Z | LED_SMD:LED_0603_1608Metric | D7 |
| 1 | LOGO | LOGO | G*** |
| 1 | LV2862XDDC | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | RST | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | SEN | TestPoint:TestPoint_Pad_D1.0mm | TP13 |
| 1 | SWDCLK | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | SWDIO | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | SWO | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | TGS8410 | Methanesense:TGS8410 | S1 |
| 1 | TPS22917DBV | Package_TO_SOT_SMD:SOT-23-6 | U9 |
| 1 | USBLC6-4SC6 | Package_TO_SOT_SMD:SOT-23-6 | U8 |
| 1 | VIN | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | nPM1300-QEXX | Methanesense:QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm_ThermalVias | U3 |
The 144 most common of 145 parts.
Questions
How big is the Methanesense PCB?
It measures 91 × 30 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Methanesense use?
145 parts, built around the ADS1115IDGSR, BME680, LV2862XLVDDCR and TPS22917DBV. 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 Methanesense KiCad files?
From the fredriknk/msense repository on GitHub, at the commit this page was made from: the board is CAD/Methanesense/Methanesense.kicad_pcb and its schematic CAD/Methanesense/ADC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Methanesense 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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