2 layers271.8 × 114.3 mm
Ardumower mega shield svn
Ardumower/ardumower
Develop an open source robotic lawn mower (HW+SW reference platform)
426 parts282
Overview
The DHT22 is a temperature And Humidity Sensor made by HAIGU in a 插件 package with 4 pins. -40℃~+80℃ 3.3V 5%RH~99%RH 500uA ±3%RH 插件 Temperature and Humidity Sensor ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:DHT22, from EasyEDA) and its footprint (EasyEDA_Cloud:CONN-TH_4P-P2.50_ZX-XH2.54-4PZZ-Y, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2880291). 131 open-source boards in 109 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Current - Supply
- 500uA
- Features
- Factory calibration
- Humidity
- 5%RH~99%RH
- Humidity Tolerance
- ±3%RH
- Interface
- I2C
- Temperature Range
- -40℃~+80℃
- Temperature Tolerance
- ±0.5℃
- Voltage - Supply
- 3.3V
Order codes
1- DHT22LCSC C2880291
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | VDD | Unspecified |
| 2 | SDA | Unspecified |
| 3 | GND | Unspecified |
| 4 | SCK | Unspecified |
Open-source boards using it
All 131- 2 layers104.8 × 72.1 mm
SST V2 4
mcbittech/souliss-smart-thermostat-WiFi
ESP8266 WiFi Smart Thermostat based on Souliss IoT Framework
53 parts110GPL-2.0 - 2 layers40.6 × 50.8 mm
Iot sourdough starter monitor
justinmklam/iot-sourdough-starter-monitor
Tracking the fermentation of sourdough starter over the cloud.
7 parts93GPL-3.0 - 2 layers28 × 13 mm
DHT22 pcb
MakersAsylumIndia/M19O2
M19O2 open source hardware Oxygen Concentrator based on the Pressure Swing Adsorption cycle aka Skarstorm cycle
5 parts68MIT - 2 layers136 × 100 mm
ClimateSprinklerController
kbx81/ClimateSprinklerController
ESP32-based climate and sprinkler controller for use with ESPHome
194 parts56 - 2 layers162 × 60 mm
Esp shield
felixwittwer/homeassistant_automaic_greenhouse
A cool Project to make your greenhouse smart. What about automaic irrigation and collecting enviromental data right from your garden.
20 parts27 - 2 layers74.9 × 40.6 mm
Anavi thermometer
AnaviTechnology/anavi-thermometer
WiFi Smart Thermometer with ESP8266, DHT22, DS18B20, OLED display and slots for up to 3 I2C sensor modules
25 parts17 - 2 layers81.3 × 36.8 mm
AirQualitySensor
Finomnis/AirQualitySensor
Simple Air Quality sensor based on nRF52840, Zigbee, AM2302/DHT22 and Senseair S8
44 parts16Apache-2.0
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<iframe src="https://pcbkit.io/embed/parts/haigu/DHT22" title="DHT22 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/haigu/DHT22.jpg" alt="DHT22" width="1200" height="900">[](https://pcbkit.io/parts/haigu/DHT22)Questions
Is there a KiCad symbol and footprint for the DHT22?
Yes. The symbol is EasyEDA_Cloud:DHT22 and the footprint EasyEDA_Cloud:CONN-TH_4P-P2.50_ZX-XH2.54-4PZZ-Y, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the DHT22?
插件, with 4 pins. Its footprint is drawn on this page.
Where is the DHT22 datasheet?
HAIGU publishes it: the Datasheet link on this page opens it.
Where can I order the DHT22?
JLCPCB lists it as part C2880291, with 0 in stock; the sellers' links on this page open their listings.
What can replace the DHT22?
Parts like it in the library: the DHT21 by HAIGU. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the DHT22?
131 boards in 109 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
