BME280 with NRF5340 display (T,P,H) problem

Question

Hello everybody, I'm having a problem to display the temperature, pressure and humidity. i followed this tutorial on a NRF5340 https://devzone.nordicsemi.com/nordic/b/archives/posts/nrf-connect-sdk-tutorial---part-3-temporary in my case i'm using SES V5.34a avec NRF Connect v3.7.0 with NRF SDK V1.5.1 i'm working with BME280 adafruit! (3-5)voltage below is my nrf5340dk_nrf5340_cpuapp.overlay as the scl pin is on P1.03 and the sda is on P1.02 &i2c1 { compatible = "nordic,nrf-twim"; status = "okay"; sda-pin = < 34-32 >; scl-pin = < 34-31 >; clock-frequency = <100000>; /* The I2C address could be one of two, here 0x76 is assumed */ bme280@76 { compatible = "bosch,bme280"; reg = <0x76>; label = "BME280"; }; }; &uart1 { status = "disabled"; }; and my prj.conf is below CONFIG_SENSOR=y CONFIG_BME280=y CONFIG_I2C_1=y and for the main.c i useed the code linked on the nfr/samples/sensor/bme280 /* * Copyright (c) 2012-2014 Wind River Systems, Inc. * * SPDX-License-Identifier: Apache-2.0 */ #include #include #include #include #define BME280 DT_INST(0, bosch_bme280) #if DT_NODE_HAS_STATUS(BME280, okay) #define BME280_LABEL DT_LABEL(BME280) #else #error Your devicetree has no enabled nodes with compatible "bosch,bme280" #define BME280_LABEL "" #endif void main(void) { const struct device *dev = device_get_binding(BME280_LABEL); if (dev == NULL) { printk("No device \"%s\" found; did initialization fail? ", BME280_LABEL); return; } else { printk("Found device \"%s\" ", BME280_LABEL); } while (1) { struct sensor_value temp, press, humidity; sensor_sample_fetch(dev); sensor_channel_get(dev, SENSOR_CHAN_AMBIENT_TEMP, &temp); sensor_channel_get(dev, SENSOR_CHAN_PRESS, &press); sensor_channel_get(dev, SENSOR_CHAN_HUMIDITY, &humidity); printk("temp: %d.%06d; press: %d.%06d; humidity: %d.%06d ", temp.val1, temp.val2, press.val1, press.val2, humidity.val1, humidity.val2); k_sleep(K_MSEC(1000)); } } my build is going well on SES and it's successful but when i try west flash from bash or Cmd prompt i'm always getting errors C:\Users zaafouri cs\v1.5.1 rf\samples\sensor\bme280>west flash -- west flash: rebuilding [0/1] Re-running CMake... Including boilerplate (Zephyr base (cached)): C:/Users/rzaafouri/ncs/v1.5.1/zephyr/cmake/app/boilerplate.cmake -- Application: C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280 -- Using NCS Toolchain 1.6.0 for building. (C:/Users/rzaafouri/ncs/v1.6.0/toolchain/cmake) -- Zephyr version: 2.4.99 (C:/Users/rzaafouri/ncs/v1.5.1/zephyr) -- Found west (found suitable version "0.11.0", minimum required is "0.7.1") -- Board: nrf5340dk_nrf5340_cpuapp -- Cache files will be written to: C:/Users/rzaafouri/ncs/v1.5.1/zephyr/.cache -- Found dtc: C:/Users/rzaafouri/ncs/v1.6.0/toolchain/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6") -- Found toolchain: gnuarmemb (C:/Users/rzaafouri/ncs/v1.6.0/toolchain/opt) -- Found BOARD.dts: C:/Users/rzaafouri/ncs/v1.5.1/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp.dts -- Found devicetree overlay: C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280/boards/nrf5340dk_nrf5340_cpuapp.overlay Error: nrf5340dk_nrf5340_cpuapp.dts.pre.tmp:698.16-17 syntax error FATAL ERROR: Unable to parse input tree CMake Error at C:/Users/rzaafouri/ncs/v1.5.1/zephyr/cmake/dts.cmake:205 (message): command failed with return code: 1 Call Stack (most recent call first): C:/Users/rzaafouri/ncs/v1.5.1/zephyr/cmake/app/boilerplate.cmake:533 (include) C:/Users/rzaafouri/ncs/v1.5.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include) C:/Users/rzaafouri/ncs/v1.5.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:40 (include_boilerplate) CMakeLists.txt:4 (find_package) -- Configuring incomplete, errors occurred! See also "C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280/build/CMakeFiles/CMakeOutput.log". See also "C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280/build/CMakeFiles/CMakeError.log". FAILED: build.ninja C:\Users zaafouri cs\v1.5.1 oolchain\opt\bin\cmake.exe --regenerate-during-build -SC:\Users zaafouri cs\v1.5.1 rf\samples\sensor\bme280 -BC:\Users zaafouri cs\v1.5.1 rf\samples\sensor\bme280\build ninja: error: rebuilding 'build.ninja': subcommand failed FATAL ERROR: re-build in C:\Users zaafouri cs\v1.5.1 rf\samples\sensor\bme280\build failed (no --build-dir given) could you please help me solve my problem and be able to get returned values of my sensor bme280 or if you see that i have something wrong with my configuration, don't hesitate to tell . i will really appreciate your help and contribution thank you in advance

Rihab · Accepted Answer

Hello Helsing, i succeeded to resolve the error of processing i reinstalled the SDK and the toolchain manager i reconfigured my environment and then i got to deal with the device tree issue so i putted the pin config aka this one &i2c1 { compatible = "nordic,nrf-twim"; status = "okay"; sda-pin = < 34 >; scl-pin = < 35 >; clock-frequency = <100000>; bme280@76 { compatible = "bosch,bme280"; reg = <0x76>; label = "BME280"; }; }; &uart1 { status = "disabled"; }; on the overlay file "nrf5340dk_nrf5340_cpuapp.overlay" and the build was successful

Rihab · Answer

the final answer for the display of this problem was related to the voltage try to double check with a voltage meter that the input voltage is 3V Find a pin labeled "VDD", and try that if you measure it to be 3.3V. in this case the needed voltage is 3.3V make sure your pins wiring is good

BME280 with NRF5340 display (T,P,H) problem

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