Hi, does anyone know how to connect BPM280 to Lora Explorer. The sensor has an SPI socket, not I2C! Do you have instruction for SPI (physical connections, libraries…), i do not want to damage the board. thanks lot.

what board is that ? sodaq ? you have a link seems that you have a lot of 'problems with your node [image] Pgmspace.h: No such file or directory End Devices (Nodes) well i modified the TheThingsNetwork.h header file: #include <C:\Program Files (x86)\path\to\tools\avr\av…

@bantob Reading the spec sheet for the BPM280 sensor it can connect by both I2C and SPI using the same pins on the sensor. To select I2C the CSB pin on the sensor must be connected to VDDIO. This method is common to a number of the Bosch sensors.

I have just been going through the various BME280\BMP280 sensor libraries that are available for Arduino, too see which had the smallest flash\ram requirement. All the sensor boards I have bought are low cost from eBay. All the libraires ands sensors assume and use I2C by default. I guess you could…

thanks. do you have a link to the connection shematics?

ok, my issue is to see how can be connected to SPI and what libs to import.

Here we go, this page by Bosch gives links to Datasheets, Application Notes etc. Follow the Tab to Downloads. Have a look at the data sheet and search for using I2C. see Section 5.2 on page 28. https://www.bosch-sensortec.com/bst/products/all_products/bme280

thanks lot! So i believe the important part to use the BMP280 with I2C is the following (page 33): SCK : serial clock (SCL) SDI : data (SDA) SDO: slave address LSB am i right? thans

Yes, that’s correct * SCK : serial clock (SCL) * SDI : data (SDA) if SDO = Ov then the I2C address is 76Hex and if SDO = Vddio then the I2C address is 77Hex Pin Connections to the BME280 1 Ground - 0 Volt of the power supply 2 CSB - connect to Vddio which is pin 6 - this sets the output …

thanks. I am bit confused on the pin mapping you have listed. I am using SODAQ and BMP280 (i counte 7 pins overall). Are you referring to that schematic? Furthermore by looking in more details i think i can connect the sensor via SPI directly… http://support.sodaq.com/sodaq-one/explorer/

BPM280 to Lora Explorer through SPI

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BoRRoZ October 11, 2018, 8:39pm 2

what board is that ? sodaq ? you have a link

seems that you have a lot of 'problems with your node