2 layers87.2 × 71.3 mm
SensorBox
Lelk0e/DA_Sensorbox
Diplomarbeit 2024-2025 mit der Firma B2 electronics. Das Ziel ist es eine Sensorbox mit dem ESP32, als Basis zu entwickeln. Diese Sensorbox soll über ein Mesh-Netzwerk erweiterbar werden.
82 parts
2 layers128.5 × 97.5 mm
SensorBox
Lelk0e/DA_SensorboxDiplomarbeit 2024-2025 mit der Firma B2 electronics. Das Ziel ist es eine Sensorbox mit dem ESP32, als Basis zu entwickeln. Diese Sensorbox soll über ein Mesh-Netzwerk erweiterbar werden.
- Size
- 128.5 × 97.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 77
- Pads
- 255
- Tracks, vias
- 506, 94
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Jun 2024
- Updated
- 29 Jun 2025
Overview
SensorBox is an open-source printed circuit board by Lelk0e, from the Lelk0e/DA_Sensorbox repository on GitHub. It is a 2-layer board of 128.5 × 97.5 mm with 82 parts on 77 nets, routed with 506 tracks and 94 vias.
It is built around the BME280, HPP845E131R5 and MAX31855EASA+T, with the MC33063AD, DS3231MZ+ and PESD3V3U1UA among its other parts. Its parts include 25 resistors, 14 capacitors, 10 ICs, 6 diodes and 1 inductor.
Main components
7
BME280
LGA-8(2.5x2.5)-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 1.8uA 16bit I2C、SPI ±0.5℃ ±3%RH LGA-8(2.5x2.5) Temperature and Humidity Sensor ROHSBoschTemperature And Humidity Sensor
HPP845E131R5
DFN-6DFN-6 New Arrivals ROHSTE ConnectivityTemperature And Humidity Sensor
MAX31855EASA+T
SO-8-40℃~+125℃ 3V~3.6V Built-in temperature sensor SPI Thermocouple-to-Digital Converter SO-8 ADCs/DACs - Special Purpose ROHSMaxim Integrated (Analog Devices)ADCs/DACs - Special PurposeMC33063AD
SOIC-8-40℃~+85℃@(TA) 1 1.5A 100kHz 3V~40V Adjustable Boost、Buck、Inverting Buck、Boost Built-in SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersDS3231MZ+
SOIC-8-40℃~+85℃ 2.3V~5.5V I2C Temperature compensation、Backup power management and battery charging、Alarm function、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
PESD3V3U1UA
SOD-323ESD And Surge Protection (TVS/ESD)TECH PUBLICBC3AAAPC
-Button And Strip Battery ConnectorMPD
README
README.mdDA_Sensorbox
Partnerfirma: b2-electronics Teammitglieder: Mayer Phillip, Yilmaz Mert-Can, Schatzmann Alexander, Marte Linus Software: Clockify, Github
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | TestPoint | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11 |
| 7 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C4, C8, C9, C10, C11, C12, CO4 |
| 6 | 4.7k | Resistor_SMD:R_0402_1005Metric | R5, R7, R8, R12, R13, R15 |
| 5 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C2, C3, C7, C13 |
| 5 | 10kR | Resistor_SMD:R_0402_1005Metric | R1_6, R9, R10, R18, R19 |
| 5 | Conn_01x01_Socket | Connector_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical | ADC1, GND1, SCL1, SDA/Signal1, VCC1 |
| 3 | 1.5KExxA | Diode_THT:D_DO-201AE_P15.24mm_Horizontal | D3, D5, D6 |
| 3 | 3k | Resistor_SMD:R_0402_1005Metric | R20, R21, R33 |
| 3 | OPA197xD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U5, U13 |
| 2 | 100R | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R1_1, Rset1 |
| 2 | 1kR | Resistor_SMD:R_0402_1005Metric | R1_4, R1_5 |
| 2 | PESD3V3U1UA | Diode_SMD:D_SOD-323 | D2, D7 |
| 1 | 0.1µF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5 |
| 1 | 0R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1_2 |
| 1 | 0R39 | Resistor_SMD:R_0402_1005Metric | Rsc1 |
| 1 | 1.3 kR | Resistor_SMD:R_0402_1005Metric | R1_3 |
| 1 | 100µF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C6 |
| 1 | 10R | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 1500pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | CT1 |
| 1 | 180R | Resistor_SMD:R_0402_1005Metric | Rx1 |
| 1 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 2k2 | Resistor_SMD:R_0402_1005Metric | R2_1 |
| 1 | 47µF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | CO1 |
| 1 | 51µH | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L1 |
| 1 | 6k8 | Resistor_SMD:R_0402_1005Metric | R1_7 |
| 1 | BC3AAAPC | Battery_Basket:BatteryHolder_Keystone_2479_3xAAA | BT1 |
| 1 | BME280 | BME280 (2):BME280 | U1 |
| 1 | Battery | Battery:BatteryHolder_LINX_BAT-HLD-012-SMT | CR1220 |
| 1 | DS3231M | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U12 |
| 1 | HPP845E131R5 | HPP_footprints:SON6_HPP845E131R5_TEC | U8 |
| 1 | Jumper_2_Bridged | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | MAX31855EASA | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | MC33063AD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | PS1-O3-100 | Ozonsensor:PS1O3100 | U11 |
| 1 | Polyfuse_Small | Fuse:Fuse_Littelfuse_372_D8.50mm | F1 |
| 1 | Type K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | TH2 |
| 1 | ~ | ESP32_Wroom_e:ESP32_Wroom_E | U7 |
| 1 | ~ | Connector_Card:microSD_HC_Molex_104031-0811 | MicroSD2 |
Questions
How big is the SensorBox PCB?
It measures 128.5 × 97.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SensorBox use?
82 parts, built around the BME280, HPP845E131R5, MAX31855EASA+T and MC33063AD. 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 SensorBox KiCad files?
From the Lelk0e/DA_Sensorbox repository on GitHub, at the commit this page was made from: the board is Sensorbox_HW/Versionen/V4_vor_HW/Sensorbox_HW_neu/Sensorbox_HW/SensorBox/SensorBox.kicad_pcb and its schematic Sensorbox_HW/SensorBox/SensorBox.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SensorBox design in my own project?
Its repository states no licence, so its author keeps all rights: ask Lelk0e before reusing the design.
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