Bwlr3d
About the Bwlr3d PCB
Bwlr3d is an open source PCB design by teapotlaboratories, published on GitHub under the MIT license. It is a 2-layer board measuring 36.8 × 90.9 mm, with 88 components from 43 distinct parts.
Other key parts include the BME688, 305051, AEM10941-QFN, XC6215B332MR-G and L86-M33. By type, the board carries 35 capacitors, 21 resistors, 9 ICs, 6 jumpers, 4 transistors and 3 inductors.
It belongs with the rf & radio, power & battery and sensors designs in this gallery.
From the project
Teapot BWLR3D: Asset Tracker and Environmental Sensor with Solar Energy Harvesting
Teapot BWLR3D is an Asset Tracker and Environmental Sensor with Solar Energy Harvesting. The device is capable of sensing temperature, humidity, air pressure, air quality, light intensity using the on-board BME688 plus VEM7700, and calculate device's AHRS using the LSM6DSOX as accelerometer and gyrometer with LIS3MDL as magnetometer. Equiped with low-power L86-M33 GNSS module, the device is capable to locate itself anywhere in the world. With STM32WLE MCU as it's core and AEM10941 for solar charging, the device is capable ultra-low power operation with the possibility of indefinite…
Main components on the Bwlr3d
Bwlr3d bill of materials (BOM)
88 components, 43 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BME688 BME680 Bosch Sensortec | BME680-PSON80P300X300X100-8N | U1 |
| 1 | 305051 RAK3172 RAKwireless | RAK3172 | U2 |
| 1 | AEM10941-QFN e-peas | QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U3 |
| 2 | XC6215B332MR-G XC6215 Torex Semicon | SOT-23-5_HandSoldering | U4, U6 |
| 1 | L86-M33 Quectel | XCVR_L86-M33 | U5 |
| 1 | LSM6DSOXTR STMicroelectronics | PQFN50P250X300X97-14N_0.59x0.30 | U7 |
| 1 | LIS3MDLTR LIS3MDL STMicroelectronics | LGA12_ST | U8 |
| 1 | VEML7700-TT STMicroelectronics | XDCR_VEML7700-TT | U9 |
| 1 | AO3407A AO3407 Alpha & Omega Semicon | SOT-23 | Q1 |
| 2 | DMG1012UW TECH PUBLIC | SOT-323_SC-70 | Q2, Q4 |
| 1 | PMV27UPEAR PMV32UP Nexperia | SOT-23 | Q3 |
| 1 | C173752 3.7v LiPo JST | JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | BT1 |
| 1 | ANT-915-USP410 - | XDCR_ANT-915-USP410 | E1 |
| 1 | USER0 | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | USER1 | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP2 |
| 1 | SELMPP0 | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP3 |
| 1 | SELMPP1 | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP4 |
| 1 | FB_PRIM_EN | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP5 |
| 1 | GPS_VBCKP | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP6 |
| 4 | KXOB25-05X3F ANYSOLAR Ltd | KXOB25-05X3F | SC1, SC2, SC3, SC4 |
Show 23 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | B3U-1000P RESET Omron Electronics | SW_SPST_B3U-1000P | SW3 |
| 1 | B3U-1000P BOOT Omron Electronics | SW_SPST_B3U-1000P | SW4 |
| 1 | LTST-C191KRKT RED Lite-On | LED_0603_1608Metric | D1 |
| 1 | LTST-C190KGKT GREEN Lite-On | LED_0603_1608Metric | D2 |
| 1 | ? H - | L_0603_1608Metric | L1 |
| 1 | LPS4012-103MRC 10uH 0.55A Coilcraft | IND_LPS4012-103MRB | L2 |
| 1 | MLZ1608M100WT000 10uH TDK | L_0603_1608Metric | L3 |
| 10 | GRM188Z71A106KA73D 10uF Murata Electronics | C_0603_1608Metric | C1, C8, C9, C10, C13, C17, C22, C31 +2 |
| 2 | 330uF - | CP_EIA-3528-15_AVX-H_Pad1.50x2.35mm_HandSolder | C2, C4 |
| 14 | CC0603KRX7R6BB104 0.1uF YAGEO | C_0603_1608Metric | C3, C5, C11, C12, C18, C19, C20, C24 +6 |
| 1 | 150uF - | C_1210_3225Metric | C6 |
| 1 | GRM188R61A226ME15D 22uF Murata Electronics | C_0603_1608Metric | C7 |
| 3 | CL10B105KP8NNNC 1uF Samsung Electro-Mechanics | C_0603_1608Metric | C14, C23, C29 |
| 2 | ? F - | C_0603_1608Metric | C15, C16 |
| 1 | GRM188Z71A475KE15D 4.7uF Murata Electronics | C_0603_1608Metric | C21 |
| 1 | CL10B225KP8NNNC 2.2uF Samsung Electro-Mechanics | C_0603_1608Metric | C27 |
| 1 | 0603WAF4701T5E 4.7K UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R1 |
| 6 | RC0603JR-0710KL 10K YAGEO | R_0603_1608Metric | R2, R3, R4, R6, R7, R21 |
| 3 | FRC0603J102TS 1K FOJAN | R_0603_1608Metric | R5, R12, R13 |
| 8 | 0603WAJ0105T5E 1M UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R8, R9, R10, R15, R17, R18, R19, R20 |
| 1 | 0603WAF0000T5E 100K UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R11 |
| 1 | 0603WAF0000T5E 400K UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R14 |
| 1 | 0 - | R_0603_1608Metric | R16 |
Bwlr3d design files
The KiCad project lives in the teapotlaboratories/bwlr3d repository on GitHub; these links point at the commit this page was built from.
Bwlr3d: common questions
How big is the Bwlr3d PCB?
The Bwlr3d measures 36.8 × 90.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Bwlr3d?
88 components, from 43 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Bwlr3d design files?
From the teapotlaboratories/bwlr3d repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Bwlr3d design in my own project?
Yes, under the terms of its MIT license, which teapotlaboratories chose for the repository.
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