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Marios Daskalakis

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Illya xDevs.com

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Components

	SHT45-AD1B-R2 Sensirion	x 1
	TMP117AIDRVT Texas Instruments	x 1
	TMP119AIYBGR TEXAS INSTRUMENTS	x 1
	SM04B-SRSS-TB (LF)(SN) JST	x 1
	C0402C104Z4VAC7867 or any capacitor 0402 100nF 16V compatible KEMET	x 1

Tools, APP Software Used etc.

Cadence Allegro

Cadence

Description

[FPCB version] Precision thermometer + humidity sensor with digital I2C interface

Precision thermometer + humidity sensor with digital I2C interface

This is a 2-layer sensor FlexPCB with Sparkfun Qwiic connector for I2C connection to host controller, such as Raspberry Pi or similar. Flex PCB has provision for address setting resistors for both temperature and humidity sensors.

The "business" end of the flex PCB has footprints for DFN-packaged Texas Instruments TMP11X series digital temperature sensors such as TMP117 or TMP119 with accuracy <0.1°C and Sensirion AG SHT4X series digital humidity sensor. Flex length is 202 mm, width 7.6mm and thickness around 0.1mm + components height.

More details, photos, tests and code examples are public at https://xdevs.com/guide/xth/ page.

Schematic and Layout

Schematics

xdevs_xth_schematics_rev00.pdf

Download Gerbers Download BOM(Bill of materials)

Jun 11,2024

2,717 views

[FPCB version] Precision thermometer + humidity sensor with digital I2C interface

2 Layers PCB 7.6 x 202.7 mm Polyimide Flex, 0.1 mm, 0.5, Immersion gold (ENIG), Yellow Solder Mask, White silkscreen

0.1mm version - Flexible PCB sensor stick for dual Texas Instruments TMP117/119 temperature sensor and Sensirion AG SHT45 humidity sensor.

2717

Published: Jun 11,2024

Flexible PCB

Download Gerber file 54

BOM(Bill of materials)

Other files for Assembly

PCBWay Donate 10% cost To Author

File Last Updated: 2024/06/12 (GMT+8)

File update record

2024-06-1200:29:48

Other files for Assembly are updated.

2024-06-1115:54:20

Parts List (BOM) is updated.

Only PCB

PCB+Assembly

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Project images are for reference only. Actual production is based on the manufacturing files on the project page. Please review the designer's notes (e.g., PCB thickness) and select the appropriate options. PCBWay is not responsible for issues caused by unsuitable parameter selections.
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