BMP280 temperature and pressure sensor on an Arduino 

I was there scratching my head thinking what am I missing I even tried using a 3.3 voltage level shift then I watch this video was help full thanks

Thank you bro. No other place exlains the address issue. You rock!

At the bottom of the code there's an adjustment to be made in hPa (/* Adjusted to local forecast! */) - search for a METAR reading in your local area and adjust the hPa value in the code to match this - should give a more accurate "Approx altitude"

Thanks, man!! The address fix I have not come across anywhere else.

Thank You So much. I didn't knew about that i2c part where we have to add that hex code.. I thought for a moment that I destroyed the sensor or something. This Video saved my money and time too. Thanks for Uploading. :)

Thanks. Bought one of these on ebay and didn't have a clue on how to connect it up. Double thank you for the address check on the sensor.

My BMP280 came without the onboard level shifters. Meaning it runs on 3V3. I have a couple of options... 1) Provide two rails - 5 volts and 3.3 volts - and Include separate level shifters. 2) Is more interesting... Run the Arduino and the display on 3V3, too. Here's how to do it. The Arduino has an auxiliary 5V output pin. This output is after the Arduino's voltage regulator. Simply input (yes, input) 3V3 on this pin and the Arduino will run, happily. Next, use a 3V3 1602 Display. Or, convert a 5V unit. They (mostly) all use a common board which can be configured as either voltage. The 3V3 model uses a L7660 negative (yes, negative) charge pump to lower the 3V3 ground point to a net 5 volts = clever. All the needed vacant pads are already on most 5V PCBs. Just add the L7660 and a couple of caps. HTH.

Nice! I'm originally from almost where you are located (always good to see familiar names on the map). As for the altitude: this should be corrected for QNH (so, like you're saying, the weather basically). I've seen tables for that in other sensor manuals; still gotta check this one.

Since this board can be soldered on both sides, you could've soldered the headers the other way around so that you can see the markings.

Muchas gracias por realizar este video, muy claro e instructivo. Por fin pude programar mi BMP 280, pensé que estaba roto. Saludos desde la ciudad de Córdoba, Argentina.

Oh very good work. I'm really happy fro your video. Currently I'm trying to measure Blood pressure. I'm using resperry pi 3(it can only read digital sensors ) and therefore I like this sensor as it digital output. Could I use this Barometric Pressure Sensor for that purpose? If it does how to connect Air pump and Blood Pressure Cuff with sensor ? Please could you help me?

Brother you my Hero ! thanks a lot i two days try solve addres problem . 100 % good job ! keep going.

Thanks for the video. I'm curious, is this sensor sensitive and fast enough to measure air speed differences when blowing on it through a small tube glued to the hole on the sensor? And also the tube itself will have a small hole to make it possible to blow through, like if when playing a flute. I'd like to use it for MIDI controller, but I'm not sure if it won't be too slow or not enough sensitive (not detecting enough levels of blowing).

How can I found the adress for the sensor??

Quick question: on which side should we solder? On the side with the writing or the side with the components? I did the soldering on th side with the writing and I feel like this is why it didn't work. Looks like the copper wiring is on the other side and if the soldering was superficial it didn't make a proper connection.

I had the same Problem. Thank you that you showed that in your Video!

3:47 It's what you're looking for.

Hi I messed around a few days trying to get it working, have the address in the if statement did the trick. Many thanks and I can confirm it does not work with 5V

Why did you solder the header with the silkscreen (pin names) on the bottom side? Are the hole not through-holes?

The Adafruit BMP280 library did not even detect my sensor (which was almost the same model, GY-BM ME/PM280, but it was detected with I2C Detect) so I installed I2C Sensor Lib and they include a BMP280 example that works (and you don't even have to type the 0x76 address in there)! Also, I believe the first variable is the elevation while not detecting small changes (average over time), am I right?

Arduino nano is compatible to 5 V, isn't it? Are two level shifters required to be added outside the bmp280 sensor (at scl and sda)? I have done all the steps and only zeros for pressure and temperature are returned. Any ideas?

thanks! it's working.

How & where can I connect an hose to this sensor in order to measure the under water pressure? My aim is to measure the under water pressure & to demonstrate that the pressure increases as the depth/height of water increases (Hydrostatic Law).

Well done! Thanks!

All the serial monitor says for me is the timestamp and "BMP20 test" The I2C detect doesn't detect anything. But it doesn't say to check the wiring, so the sensor must not be defective?

So the sensor is just completely inaccurate when it comes to the altitude?

Thank you for the video. I bought mine for 50 cent! By the way the it only supports 3.3v, is it safe to work with 5v?

as far as i know the arduino NANO have 5V logic voltage, does it safe when sda scl connect directly to NANO analog pin? or should i use voltage divider to 3.3V first? thank you

Thanks. Very good!

Good video, my friend. Could you describe how you discovered the correct address for I2C?

Incoming data appears as "nan". How do I fix this problem? Temperature = nan *C Pressure = nan hPa Approx. Altitude = nan m Humidity = nan % like that

Help! I cannot get this device working. Does it need logic level shifting with an arduino uno? Can't even scan it for an address, nothing. Thanks!

Subscribed all the way 😊☺️

thank You Bro so much! for the usefull video

I have connected the sensor using I2C transmission like in the video but nothing. I use some codes to define the I2C port but they don't find it, so I try every port from 1 to 128. I checked every connection 10 times and tryed the with 2 sensor. Ideas?

I have the original Adafruit BMP 280 but when I try to do it it says "Adafruit_Sensor.h: No such file or directory"

Is it possible to use more than one of this sensors at the same time? I think they have the same i2c adress, haven't they?

just a small issue, please do not use f word at 4:00, I was watching this video with my son

cool

do you really put the value 0x76 inside the code? im also having the same problem as you

i want to ask that this sensor (BMP280) messure humidity, doesn't it?

Do we need to solder bmp 280 with pins headers?

can this pressure sensor measure the amount of pressure in the cylinder ?

For me it's not working can you please help me

3:50 :P

Ty 4 help

bme280 will more suitable, it can test humility

🙌 if possible if you've got a mo the sketch file please mate

like good thank's verry much

pls send me all library thanks

Can you share code ? Please send me email.

Fucking legend! Thanks a lot, I finally got it to work I had the same problem

did you have to curse? totally unexpected