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Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI.
This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy.
Application:
Enhancement of GPS navigation
e.g.time-to-first-fix improvement，dead-reckoning，slope detection
Indoor navigation（floor detection，elevator detection）
Outdoor navigation，leisure and sports applications
Weather forecast
Health care application（e.g. sirometry）
Vertical velocity indication（e.g. risk/sink speed）
Target devices
Handsets such as mobile phones ,table PCs,GPS devices
Navigation systems
Portable health caredevices
Home weather stations
Flying toysv Watches
Size:(L*W)1.52* 1.20cm/0.60"*0.47"
Package Included:
5 * GY-BMP280-3.3 Atmospheric Pressure Sensor
Tip:The I2C address was 0x76 and not the 0x77 default used by most other sensors.
You have to manually change the address inside the Adafruit_BMP280.h to: #define BMP280_ADDRESS (0x76),Then it started to work.
Lunix
Reviewed in the United States on August 10, 2024
The module is poorly marked and looks identical to the BME280. These work fine, but I meant to buy the BME280. You don't have to "manually change the address inside the Adafruit_BMP280.h to: #define BMP280_ADDRESS (0x76)". At least, not anymore. Just use the commented line, and comment the one that is un-commented in the example code. Your code should look like this: status = bmp.begin(BMP280_ADDRESS_ALT, BMP280_CHIPID);// status = bmp.begin();BMP280_ADDRESS_ALT is defined as 0x76
Customer
Reviewed in the United States on October 8, 2024
Llego rapido y muy bien empacado
Ken
Reviewed in the United States on April 19, 2024
Purchased two bags of 5 at different times from HiLetgo through Amazon. In the second set of five only two worked properly. One read 220 hPa off! These HiLetgo breakout boards were junk! I am concerned maybe the rest will fail soon after they are deployed in our product. I will not buy anything made by HiLetgo again despite their cheapest price.
Tim Kern
Reviewed in the United States on July 4, 2023
VERY small form factor makes installation in tight spaces easy. Altitude wanders a bit, but doesn't run off in just one direction like so many others. Temperature seems to be right on, at least in the narrow range where I tested it.
Kindle Customer
Reviewed in the United States on June 2, 2023
I only tried one of the 5 that I received but it worked fine, and compared to a different BMP280 from a diff manufacturer, it was accurate.To make it work, you must use Vcc as 3.3V and hook SDO to 3.3V for I2C interface. No level converters are required and the address is 0x77.
Alex
Reviewed in Canada on September 10, 2021
Very good. They work great for my use. No problems at all, i2c bus address 0x76. just what I wanted/needed.
TRUTH
Reviewed in the United States on July 22, 2021
The device works great. I am impressed with the accuracy and stability. There is a little bit of calibration to do. Just go out and get about 4-5 locations of pressures from various airports in your area. Average those measurements out, then turn around and get a reading from the sensor and then subtract it from the average and take that difference and remove it. It is around 40 or so. Once that calibration is in your code. It stays with no real change necessary. I have run this thing for 3 days straight taking measurements once a minute using an Arduino ESP8622. Works excellent.
J.
Reviewed in the United States on November 7, 2021
I tried a lot to get these to work, at first four of the five were working great, but after a few hours of gathering data one showed a bunch of garbage information then prompted stopped sending any data, two more did the same within the next few hours. One kept chugging along fine, but gets finicky if I do much with it.Now one heats up rapidly when connected until it smokes, two started requiring the CS pin to be put to VCC to get into I2C mode (what the chip is meant to do, but the breakout is meant to remove the need for the extra wire to the CS pin) and will gradually start heating up as data is polled until they stop working (but never smoke), you'll see an immediate bump between the first two readings of 10 degrees then it'll gradually climb from there, and the one odd one out seems to work as long as I use all five wires to 1) Put into I2C mode (CS to VCC) 2) Switch from 0x76 to 0x77 (SDO to VCC).This entirely defeats the purpose of I2C since you end up needing to use all six connections.So I tried SPI mode, this worked a lot more consistently, but obviously requires you to use all of the wires as well, so you don't really gain or lose anything, but using six wires instead of four really sucks and kills the need for the breakout entirely. Unfortunately the sensors with the heating issue continued to be problematic in SPI mode, but the one sensor works great in both modes.I've had a lot of success with HiLetgo products, and was really disappointed here, but I have to give them an extra star for how hard they worked with me trying to help me figure out the issue. I'll probably buy another batch from another seller that has better reviews. This failure indicates something wrong with the SMD resistors used to handle the CS pin's default state.
Customer
Reviewed in the United States on January 14, 2019
There is no humidity and you need BMP280 library
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