[Tuya Smart] IoT thermometer and hygrometer

Overview

The battery-powered IoT temperature and humidity sensor linked to the Tuya Smart Platform communicates through the Tuya Smart WIFI module

temperature sensor

The temperature sensor uses the "SHT30-DIS" high-precision sensor with IIC digital output from "Sensirion (Switzerland)" and the external circuit is simple

power supply

The power supply is divided into two parts: "Battery & Charging" and "DC-DC"

The power monitoring circuit uses two 51K resistors to divide the voltage to adapt to the main control end ADC input voltage range.

And add a MOS tube controlled by a triode to save electricity

The battery part uses battery protection IC "DW01" and dual MOS tube "8205A" to protect the battery.

And charge the battery through a "TP4056X"

DC-DC power supply section

The voltage of the lithium battery will fluctuate between 4.2V when fully charged and 3V when empty. In order to ensure the stability of the power supply voltage, "TI (Texas Instruments)" "TPS63000DRCR" DC-DC chip is used to stabilize the voltage.

Design Files

BOM download

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-18 14:39:34

Request STEVAL-IDB007V1 BLE Development Kit
[size=14px]As a student, I want to learn the STEVAL-IDB007V1 BLE development kit first. Recently, I am working on a wireless car project, but the wireless Bluetooth module I use has too many disadvant
Four basic principles of engineering anti-interference - "one prevention, two avoidance, three resistance, four supplementation"
First defense: set up defenses to keep interference out. Measures: 1. Cables should be routed through galvanized iron pipes and metal cable troughs; 2. Cables should be buried underground; 3. Double-i
People who work in analog circuits and hardware can come in and chat.
I want to ask a question: My current job is embedded software. I often write some programs and make some plans. I seldom design schematics and PCBs. Is there anyone whose job involves designing schema
Solar inverter developed using TI C2000 (Part 2)
Against the backdrop of increasingly severe energy challenges, solar energy has become a new and rapidly growing technology. Generating electricity in a cheap and efficient way is a key requirement, a
orcad to altium
Dear experts, I have two boards drawn by Koreans using Orcad, but I don't know how to use Orcad. Could any brother help me convert them into Altium format files? I would be very grateful.
Microcontroller C Language Tutorial (IV)
In the previous section, we learned about the data types supported by the KEIL C51 compiler. How are these data types used in the definition of constants and variables? Is there anything to pay attent

Datasheet More

Circuits More