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SHT4x Smart Gadget User Guide
Sensirion's Reference Design for SHT4x Sensors
▪ SHT40 humidity and temperature sensor
▪ Liquid Crystal Display (LCD) for humidity, temperature and dew point in °C and °F
▪ Bluetooth Low Energy (BLE) connectivity
▪ iOS and Android MyAmbience app available for remote access
▪ Data logging and export capabilities
▪ Detailed hardware design resources available
Introduction
The SHT4x Smart Gadget is a simple reference design circuit board which demonstrates the outstanding
performance and ease of use of Sensirion's SHT4x Humidity and Temperature sensors. It is equipped with a
Liquid Crystal Display (LCD) showing humidity and temperature information. It also features a Bluetooth Low
Energy (BLE) module allowing it to communicate with BLE capable devices like smartphones.
Development Kit Contents
© Copyright Sensirion AG, Switzerland
▪
Smart Gadget equipped with SHT40 sensor,
LCD, push button and BLE capable MCU
module, including battery, and supports.
MyAmbience app for iOS and Android
▪
devices available for download in respective
application stores.
Detailed hardware design resources (PCB
▪
layout, BOM) available on GitHub.
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Related Manuals for SENSIRION SHT4x
Summary of Contents for SENSIRION SHT4x
- Page 1 The SHT4x Smart Gadget is a simple reference design circuit board which demonstrates the outstanding performance and ease of use of Sensirion’s SHT4x Humidity and Temperature sensors. It is equipped with a Liquid Crystal Display (LCD) showing humidity and temperature information. It also features a Bluetooth Low Energy (BLE) module allowing it to communicate with BLE capable devices like smartphones.
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Page 2: Table Of Contents
>2 seconds 4. Operation with MyAmbience App Download iOS or Android version of the ▪ MyAmbience app on your smartphone Open the App to automatically see nearby ▪ smart gadgets on your smartphone © Copyright Sensirion AG, Switzerland 2/10... -
Page 3: Standard Operations
Bluetooth mode is enabled by default. When Bluetooth mode is enabled, the Bluetooth symbol in the display is shown and the SHT4x Smart Gadget is visible for master devices. It is then possible for a master device running MyAmbience app to establish a connection to the Smart Gadget. To change Bluetooth mode (disabling or enabling), press the button for more than 2 seconds. -
Page 4: Important Security Advice
▪ ▪ Smart Gadget operating temperature range: -10 to 60 °C ▪ The Smart Gadget is intended for indoor use The Smart Gadget is sensitive to electrostatic discharge (ESD) – please take precautions ▪ © Copyright Sensirion AG, Switzerland 4/10... -
Page 5: Myambience Application
60 – 100 %RH On the upper-right corner, one can access the gadget settings to change the gadget name and the logging interval with which the gadget should internally store the measured environmental data for later download. © Copyright Sensirion AG, Switzerland 5/10... -
Page 6: Plot Panel
Under the App Settings section, it is possible to change the temperature units (°C, °F, K), and to select other metrics to display (dew point, heat index, absolute humidity) in the Dashboard and Plot panel. © Copyright Sensirion AG, Switzerland 6/10... -
Page 7: Hardware Resources
4 Hardware resources Hardware design data (PCB layout, schematics, BOM) are published on Sensirion GitHub page: https://github.com/Sensirion/smartgadget-sht4x-hardware 4.1 Block Diagram SHT40 debug interface Bluetooth Low Energy Debug Button Module Interface ST1 debug interface Debug LCD Driver Interface ST2 LCD Display 4.2 Bill of Materials... -
Page 8: Pcb Layout
Manufacturer Manufacturer Part Number Capacitors For display C10, C11, C_0805 support, no C12, C13 electrical function Capacitors 22uF, C14. C15, C_0603 6V3/X5R C16, C17 Resistors 10kOhm, 1% 2 R4, R6 R_0402 4.3 PCB Layout © Copyright Sensirion AG, Switzerland 8/10... -
Page 9: Version History
5 Version History Date Revision Changes 10. May 2021 Initial version © Copyright Sensirion AG, Switzerland 9/10... - Page 10 Warranty SENSIRION warrants solely to the original purchaser of this product for a period of 12 months (one year) from the date of delivery that this product shall be of the quality, material and workmanship defined in SENSIRION’s published specifications of the product. Within such period, if proven to be defective, SENSIRION shall repair and/or replace this product, in SENSIRION’s discretion, free of charge to the...
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