Search found 15 matches

by Orion1398
Tue May 04, 2021 10:33 pm
Forum: General discussion
Topic: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?
Replies: 14
Views: 8002

Re: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?

fpiSTM wrote: Tue May 04, 2021 9:44 pm Do you have pullups resistors on each I2C lines? If not then add them. Usually 4.7K.
I will try it. Thanks.
by Orion1398
Tue May 04, 2021 9:05 pm
Forum: General discussion
Topic: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?
Replies: 14
Views: 8002

Re: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?

See this post: https://www.stm32duino.com/viewtopic.php?p=2219#p2219 Also, run the i2c_scanner from the Arduino examples menu and make sure it can see your device at the right address. I read that post but it dosen't help me. I use i2c_scaner and get this -> No I2C devices found Code what I use #in...
by Orion1398
Tue May 04, 2021 8:24 pm
Forum: General discussion
Topic: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?
Replies: 14
Views: 8002

Re: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?

Hi, I had all sorts of weird problems connecting a BMP280 (similar to BME280) to a STM32F411CEU6 through I2C, but then I decided to use SPI and everything works fine - and SPI is much faster than I2C. I am using the Adafruit BMP280 library. I understand that but i have BMP280 with 4 ports vcc gnd s...
by Orion1398
Tue May 04, 2021 8:05 pm
Forum: General discussion
Topic: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?
Replies: 14
Views: 8002

Re: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?

But there is data returned from the BME is seems ? Try just using the single BME280 sensor and print data through a serial console. What board are you using ? I'm using STM32 F407VET6. I use single BME280 sensor and I get -106.82 for Temperature and etc. I don't know how to use serial console using...
by Orion1398
Tue May 04, 2021 6:32 pm
Forum: General discussion
Topic: STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?
Replies: 14
Views: 8002

STM32 F407VET6 and BME280 I2C how to choose SDA and SCL pins?

Hi! (sorry for my english I'm not a native speaker) I have a problem with connecting the BME280 sensor to the board. Using standard libraries I cannot specify which pins I will use. The only thing I could achieve was using begin (0x76); print incomprehensible data like (tft.print (bme.readTemperatur...

Go to advanced search