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BME280 Temperature Humidity Barometric Pressure Sensor Module with IIC I2C for Arduino
Feature
Make sure to put SDO to high to get address 0x77. This will work with BME280 library perfectly.
Not only the pressure and the temperature, this sensor can measure humidity.
BME280 is a precision sensor, is soldered onto PCB.It uses both I2C and SPI (supports 3-, 4-wire SPI) interface.
With an I2C connection you have access to enough weather data to make some pretty good predictions for your local area.
It is made up of a very accurate pressure sensor and an associated temperature sensor which helps calibrate the pressure readings.
Wiring diagram
Please wire according to the diagram
Package Included:
4* BME280 Temperature Humidity Sensor Module
IESRE
Reviewed in the United States on May 15, 2024
BME280 sensors are poor choices for outdoor use in weather stations because their humidity sensors will "saturate" after prolonged exposure to very high humidity conditions and never recover. But they're perfectly OK for use in more controlled environments. They have an I2C interface so they're easy to use in Arduino-based systems with a software library from Adafruit.com or other sources. I gave these pc board modules four stars instead of five because for attaching them to a breadboard you have to solder the header pins (included) and with this very small pc board you have to be VERY careful not to overheat the board and avoid solder bridges across the pins. Also -- beware -- if you use them outdoors their relative humidity data sooner or later (often sooner) will get "stuck" at unreasonably high values. Also, at least with the Adafruit library, divide the pressure readings by 100 to get data in units of millibars.
Lake
Reviewed in the United States on November 4, 2024
In addition to shipping without the header pins soldered they also ship without ANY I2C address defined.What "Make sure to put SDO to high to get address 0x77. This will work with BME280 library perfectly" means is you have to connect the middle of the three bare pads to one (only one) on either side. One gets you 0x76, one gets you 0x77 (see picture), and none gets you a very ineffective paperweight and a lot of wasted time debugging.The schematic presented shows SDO connected to ground, which is a lie.This all needs to be WAY MORE EXPLICIT in at least the product description and frankly included in the shipping material (I shouldn't need to go back to amazon for this kind of documentation).After that debacle it worked perfectly first try. So it gets two stars instead of one.
Kindle Customer
Reviewed in the United States on April 30, 2024
Used these on an IoT project using Arduino. They are clones of the real sensor, but they work just the same.
Customer
Reviewed in the United States on June 11, 2021
Value for money is the big issue here. The last time I purchased this it cost $17 for 4. Those same four are now going for $46. I realize that chip prices are up but a 270% increase seems crazy!
C
Reviewed in the United States on August 24, 2020
No complaints. Using this in an HVAC system to monitor everything inside and out with 2 sensors. Works perfectly fine with a Wemos D1. Great part is that there's a solder point to switch the address between 77 and 76. Means you can run 2 of these with a simple solder joint on I2C instead of complex code or multiplexers. I will likely buy more of these for other projects.
Customer
Reviewed in the United States on July 26, 2020
I've been buying the Adafruit breakout for $20 and these are excellent quality and easy to use. The Bosch BME280 IC is a few $ but is tiny and I think impossible to hand solder. Was looking for exactly this kind of device that is small and can be hand soldered to my PCB, and its only $4.50 ea. It works as expected with the Adafruit library. There is an LDO regulator on board, so can be powered by 5V or 3.3V. If you don't need SPI or level shifting and want something physically smaller than the Adafruit breakout, this is a great compromise. The SMT quality is very good. The shipping packing is very good. I will buy these again. Minor gripe is no schematic or fabrication drawing. BTW, you will need to add a temperature offset to the device reading, to get to an accurate ambient temp. (Same issue with the Adafruit device.) They all read high by -1.8 to -3F.
DK.
Reviewed in the United States on November 24, 2020
This product is hardwired to device address 0x76. I was using the Adafruit_BME280_library which defaults to device address 0x77 hence the example test programs reported device failure. To fix the Adafruit test programs and/or other programs using the Adafruit_BME280_library to use this type of bme280 module, modify the bme device initialization call from: bme.begin();to bme.begin(0x76);Had I known this before I returned this order, it might have saved everyone the inconvenience of returning this order.My apologies to all.
A. Nathoo
Reviewed in the United States on July 27, 2019
Easy to setup. However I need to improve my solder skills ;-), the board is tiny and it was a bit challenging to solder the connector. It's better to use right angled connector, than the straight one provided, if you have some around.The sensor is accurate and libraries are widely available for both Arduino, rPi and micro-python boards.
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