The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system. All you need are two lines for I2C communication, and you’ll have relative humidity readings and very accurate temperature readings as a bonus!
There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I2C communication. This breakout board has built-in 4.7KΩ pullup resistors for I2C communications. If you’re hooking up multiple I2C devices on the same bus, you may want to disable these resistors.
Features:
- 0.6″ x 0.6″
Documents:
- Schematic
- Eagle Files
- Datasheet (Si7021)
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We offer a broad range of shipping options owing to our long-running partnerships with UPS, FedEx and DHL. Our warehouse personnel are expertly trained and will wrap your items according to our exact and precise specifications. Your products will be subjected to an exhaustive examination before they will be properly packaged prior to being delivered. Everyday, we send to thousands of clients in multiple countries. This shows our commitment to be the largest online retailer in the world. We have distribution centers as well as warehouses in Europe as well as the USA.
Note: Orders that contain more than one product will be assigned a distinct processing time dependent on the particular item.
We will inspect each and every one of the products before they are shipped. The majority of orders are shipped within 48 hours. The delivery time will be between 3-7 working days.
Returns
The inventory is always changing, and not fully managed by us because of the involvement of many parties including the factory and our warehouse. The stock can change at any moment. Please be aware that it's possible for your order to be out of stock after you have made the order.
Our policy is valid for a period of 30 days. If 30 days have passed in the past since you purchased and we are unable to offer you a return or exchange.
To be eligible for a refund, your product must be unopened and in the same condition as you received it in. It must also be returned in its original packaging.
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