BME280 and SPI on PI4

[adafruit_support_carter]

Sorry, but it still might be soldering. Still a few pins that don't look wetted out on the pads. Like the "Insufficient Wetting" examples here:
https://learn.adafruit.com/adafruit-gui ... n-problems
Esp. since this is happening with both breakouts.

Just to make sure this should all work, I wired up a BME280 to a Pi 4 real quick:

bme280_test.jpg (285.4 KiB) Viewed 250 times

and ran a simple test:

Code: Select all

pi@raspberrypi:~ $ python3
Python 3.7.3 (default, Apr  3 2019, 05:39:12) 
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import board
>>> import digitalio
>>> import adafruit_bme280
>>> cs = digitalio.DigitalInOut(board.D5)
>>> bme = adafruit_bme280.Adafruit_BME280_SPI(board.SPI(), cs)
>>> bme.pressure
1002.1136945002705
>>> bme.temperature
25.502734375
>>> 

and it worked OK.

Keep trying with the soldering. Focus on trying to get more heat on the pads - the copper rings on the breakout board itself.

[lankylad]

I have now managed to get the new BME280 to work, so it looks like the original one is faulty or the soldering is inadequate. I'll try the soldering again!

[lankylad]

It looks like my board is faulty. Is it possible to retutn it to Adafruit?

[dastels]

It happens. Please email [email protected] with a link to this thread, your order number, and request a replacement of one BME280 breakout.

Dave

[lankylad]

Thanks, the replacement has arrived from Adafruit in the US. Terrific customer service. Very impressed.