DA Sensorbox
About the DA Sensorbox PCB
DA Sensorbox is an open source ESP32 PCB design by Lelk0e, published on GitHub. It is a 2-layer board measuring 87.2 × 71.3 mm, with 80 components from 42 distinct parts.
Its main chip is the ESP32_Wroom_E, from the ESP32 family. Other key parts include the OPA197xD, BME280, MC33063AD, MAX31855EASA and HPP845E131R5. By type, the board carries 25 resistors, 13 capacitors, 10 ICs, 6 test points, 6 diodes and 1 battery holder.
From the project
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.
Main components on the DA Sensorbox
DA Sensorbox bill of materials (BOM)
80 components, 42 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | OPA197xD | SOIC-8_3.9x4.9mm_P1.27mm | U2, U5, U13 |
| 1 | BME280 | Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering_ch | U3 |
| 1 | MC33063AD | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | MAX31855EASA | SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | ~ | ESP32_Wroom_E | U7 |
| 1 | HPP845E131R5 | SON6_HPP845E131R5_TEC | U8 |
| 1 | PS1-O3-100 | PS1O3100 | U11 |
| 1 | DS3231M | SOIC-16W_7.5x10.3mm_P1.27mm | U12 |
| 5 | Conn_01x01_Socket | PinHeader_1x01_P2.00mm_Vertical | ADC1, GND1, SCL1, SDA/Signal1, VCC1 |
| 1 | BC3AAAPC | BatteryHolder_Keystone_2479_3xAAA | BT1 |
| 2 | 33uF - 16V | C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | CO1, CO2 |
| 1 | 100nF-50V | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | CO4 |
| 1 | Battery | BatteryHolder_LINX_BAT-HLD-012-SMT | CR1220 |
| 1 | 1500pF - 50V | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | CT1 |
| 1 | Polyfuse_Small | Fuse_Littelfuse_372_D8.50mm | F1 |
| 1 | Jumper_2_Bridged | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | ~ | microSD_HC_Molex_104031-0811 | MicroSD2 |
| 1 | 0R39 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | Rsc1 |
| 1 | 10k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | Rset1 |
| 1 | 180R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | Rx1 |
Show 22 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATE1D-2M3-10-Z | SW_ATE1D-2M3-10-Z | S1 |
| 1 | Type K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | TH2 |
| 6 | TestPoint | TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP1, TP2, TP3, TP4, TP10, TP11 |
| 1 | 1N5819 | D_SMB-SMC_Universal_Handsoldering | D1 |
| 4 | PESD3V3U1UA | D_SOD-323 | D2, D4, D5, D7 |
| 1 | SMBJ5.0A | D_SMB_Handsoldering | D3 |
| 1 | 56 uH - 2.1A | L1 | L1 |
| 12 | 100nF-50V | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4, C5, C7, C8, C9 +4 |
| 1 | 100uF - 16V | CP_Elec_6.3x7.7 | C14 |
| 1 | 10R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | 10k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1_1 |
| 1 | 0R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1_2 |
| 1 | 1.3 kR | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1_3 |
| 2 | 1kR | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1_4, R1_5 |
| 6 | 10kR | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1_6, R2, R9, R10, R18, R19 |
| 1 | 2k2 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1_7 |
| 1 | 6k8 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2_1 |
| 1 | 47k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2_2 |
| 2 | 100R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R4 |
| 4 | 4.7k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R7, R8, R15 |
| 1 | 20kR | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R6 |
| 3 | 3k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R20, R21, R33 |
DA Sensorbox design files
The KiCad project lives in the Lelk0e/DA_Sensorbox repository on GitHub; these links point at the commit this page was built from.
DA Sensorbox: common questions
What microcontroller does the DA Sensorbox use?
The DA Sensorbox is built around the ESP32_Wroom_E, from the ESP32 family.
How big is the DA Sensorbox PCB?
The DA Sensorbox measures 87.2 × 71.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DA Sensorbox?
80 components, from 42 distinct parts. The full bill of materials is listed on this page.
Where can I download the DA Sensorbox design files?
From the Lelk0e/DA_Sensorbox repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the DA Sensorbox design in my own project?
The repository has no license, so all rights stay with Lelk0e. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the DA Sensorbox without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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