TemperatureSensor
About the TemperatureSensor PCB
TemperatureSensor is an open source RP2040/RP2350 PCB design by PolygonHJ, published on GitHub under the MIT license. It is a 4-layer board measuring 65 × 52.5 mm, with 78 components from 39 distinct parts.
Its main chip is the SC0914(13), from the RP2040/RP2350 family. Other key parts include the BQ25173DSGR, TPS22917DBVR, W25Q64JVXGIM, BQ25570RGRR and LP2985-33DBVR. By type, the board carries 28 capacitors, 20 resistors, 8 ICs, 6 diodes, 5 connectors and 2 inductors.
It belongs with the power & battery and sensors designs in this gallery.
From the project
Xihe is a self-sustaining, ultra-low-power sensing platform designed for long-lifetime deployments with zero maintenance.
- Energy Harvester: files related to the energy harvester chip (such as calculations). - PcbWay Manufacturing Files: reference rules file with PcbWays manufacturing capabilities. - Projects: reference projects and exmaples; - Proposal is an initial concept design for a single sided board to test hardware with. This primarily was to test the USB-SWD circuit more easily, but the replacement on this sub-circuit with the Xiao nRF54L15 means the test design is less required. - Xiao nRF54L15 Module, an nRF54L15 module from seeed studio used for this project. - BeeLight, open source zigbee…
Main components on the TemperatureSensor
TemperatureSensor bill of materials (BOM)
78 components, 39 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ25173DSGR BQ25173DSG | WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U1 |
| 1 | SC0914(13) RP2040 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U2 |
| 2 | TPS22917DBVR TPS22917DBV | SOT-23-6 | U3, U9 |
| 1 | W25Q64JVXGIM | XSON-8-1EP_4x4mm_P0.8 | U4 |
| 1 | BQ25570RGRR BQ25570 | QFN-20-1EP_3.5x3.5mm_P0.5mm_EP2x2mm | U6 |
| 1 | LP2985-33DBVR LP2985-3.3 | SOT-23-5 | U8 |
| 1 | 453-00001R | XCVR_453-00001R | U10 |
| 1 | ABM8-272-T3 Crystal_GND24 | Crystal_SMD_Abracon_ABM8 | Y1 |
| 1 | USB4105-GF-A USB_C_Receptacle_USB2.0_16P | GCT_USB4105-GF-A | J1 |
| 1 | Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 3 | Conn_01x03_Pin | PinHeader_1x03_P2.54mm_Vertical | J3, J4, J5 |
| 1 | RC0402FR-075M6L 5.6M | R_0402_1005Metric | ROK1 |
| 2 | RC0402FR-074M7L 4.7M | R_0402_1005Metric | ROK2, ROUT1 |
| 1 | RC0402FR-071M2L 1.2M | R_0402_1005Metric | ROK3 |
| 2 | RC0402FR-078M2L 8.2M | R_0402_1005Metric | ROUT2, ROV2 |
| 1 | RC0402FR-074M3L 4.3M | R_0402_1005Metric | ROV1 |
| 1 | KXOB25-12X1F-TR Solar_Cell | KXOB25-05X3F_IXY | SC1 |
| 2 | Yellow | LED_0402_1005Metric | D1, D4 |
| 2 | Green | LED_0402_1005Metric | D2, D5 |
| 1 | Red | LED_0402_1005Metric | D3 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RB751V40,115 D | D_SOD-323 | D6 |
| 1 | NRS4018T220MDGJ 22u | IND_TAIYO_NRS4018_TAY | L1 |
| 1 | NRS4018T100MDGJ 10u | IND_TAIYO_NRS4018_TAY | L2 |
| 7 | GRM155Z71A105KE01J 1u | C_0402_1005Metric | C1, C2, C4, C5, C6, C9, C21 |
| 1 | MAL219691154E3 4F | CAP_MAL219691154E3_VIS | C3 |
| 11 | GRM155R71A104KA01J 100n | C_0402_1005Metric | C7, C8, C10, C11, C12, C13, C14, C15 +3 |
| 2 | GJM1555C1H150GB01D 15p | C_0402_1005Metric | C17, C18 |
| 1 | GRM188Z71A106KA73D 10u | C_0603_1608Metric | C22 |
| 1 | GRM21BZ71A226ME15L 22u | C_0805_2012Metric | C24 |
| 3 | GRM155R71C103KA01D 10n | C_0402_1005Metric | C26, C28, C30 |
| 2 | GRM188Z71A475ME15D 4.7u | C_0603_1608Metric | C27, C29 |
| 3 | RC0402FR-07120KL 120k | R_0402_1005Metric | R1, R4, R5 |
| 1 | RC0402FR-07620KL 620k | R_0402_1005Metric | R2 |
| 1 | RC0402FR-13750RL 750 | R_0402_1005Metric | R3 |
| 2 | RC0402FR-0727RL 27 | R_0402_1005Metric | R13, R14 |
| 1 | RC0402FR-070RL 0 | R_0402_1005Metric | R15 |
| 5 | RC0402FR-07470RL 470 | R_0402_1005Metric | R16, R19, R20, R21, R22 |
| 6 | RC0402FR-135K1L 5.1k | R_0402_1005Metric | R17, R23, R24, R25, R26, R27 |
| 1 | RC0402FR-131KL 1k | R_0402_1005Metric | R18 |
TemperatureSensor design files
The KiCad project lives in the PolygonHJ/xihe repository on GitHub; these links point at the commit this page was built from.
TemperatureSensor: common questions
What microcontroller does the TemperatureSensor use?
The TemperatureSensor is built around the SC0914(13), from the RP2040/RP2350 family.
How big is the TemperatureSensor PCB?
The TemperatureSensor measures 65 × 52.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the TemperatureSensor?
78 components, from 39 distinct parts. The full bill of materials is listed on this page.
Where can I download the TemperatureSensor design files?
From the PolygonHJ/xihe repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the TemperatureSensor design in my own project?
Yes, under the terms of its MIT license, which PolygonHJ chose for the repository.
Can I test firmware for the TemperatureSensor without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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