Precise. Robust. High-level.

Software: Bosch Sensortec Environmental Cluster (BSEC)

Bosch Sensortec Environmental Cluster (BSEC)

Higher-level signal processing and fusion for the BME680

BSEC library provides higher-level signal processing and fusion for the BME680. The library receives compensated sensor values from the sensor API. In order to fully provide the requested sensor outputs, Bosch Sensortec environmental cluster processes the BME680 signals and combines them with the additional phone sensors. The BSEC library offers a complete, easy to integrate software fusion solution out of one hand and thus eliminates the need for own fusion software development.

Typical applications

BSEC precisely performs several calculations outside the device such as ambient air temperature, ambient relative humidity, pressure and air quality (IAQ) level. Besides health monitoring, well-being (warning regarding dehydration / heat stroke), home automation control and HVAC applications, BSEC supports a broad range of further applications, e.g. gaming, indoor and outdoor navigation and many more:

Health monitoring/ well-being (warning regarding dehydration / heat stroke)

Home automation control

Control heating, venting, air conditioning (HVAC) applications

Gaming applications like flying toys

Internet of things applications

Context awareness

Enhancement of GPS navigation (e.g., time-to-first-fix improvement, dead-reckoning, slope detection)

Indoor navigation (floor detection, elevator detection)

Outdoor navigation

Leisure and sports applications

Weather forecast

Health care applications (e.g. spirometry)

Vertical velocity indication (e.g. rise/sink speed)

Supported platforms

The software is supported in 32, 16 and 8 bit MCU platforms. More information and the possibility to download the environmental lib can be found here.

Technical data

Platform	Compiler	ROM (BSEC)	ROM (BSEC lite*)	RAM	TYPE
Platform Cortex- ARM	Compiler ARMCC	ROM (BSEC) 19-20k	ROM (BSEC lite*) 12-13k	RAM 1k	TYPE Cortex-M0, M0+, M3, M4, M4_FPU, M7
Platform Cortex- ARM	Compiler GCC	ROM (BSEC) 20-22k	ROM (BSEC lite*) 12-14k	RAM 1k	TYPE Cortex-M0, M0+, M3, M4, M4_FPU, M7
Platform Cortex-A*	Compiler GCC	ROM (BSEC) 21k	ROM (BSEC lite*) 13k	RAM 1k	TYPE Cortex-A7
Platform AVR_8bit	Compiler AVR-GCC	ROM (BSEC) 42k	ROM (BSEC lite*) 25k	RAM 1k	TYPE MegaAVR, XMEGA
Platform AVR_32bit	Compiler AVR-GCC	ROM (BSEC) 24k	ROM (BSEC lite*) 13k	RAM 1k	TYPE 32-bit AVR UC3
Platform ESP8266	Compiler xtensa-lx106-elf-gcc	ROM (BSEC) 28k	ROM (BSEC lite*) 17k	RAM 1k	TYPE ESP8266
Platform ESP32	Compiler xtensa-esp32-elf-gcc	ROM (BSEC) 24k	ROM (BSEC lite*) 14k	RAM 1k	TYPE ESP32
Platform MSP430	Compiler msp430-elf-gcc	ROM (BSEC) 34k	ROM (BSEC lite*) 20k	RAM 1k	TYPE MSP430
Platform Android system-x86	Compiler gcc	ROM (BSEC) 39-49k	ROM (BSEC lite*) 22-26k	RAM 1k	TYPE x86, x86_64
Platform Android system- arm	Compiler gcc	ROM (BSEC) 21-38k	ROM (BSEC lite*) 13-19k	RAM 1k	TYPE arm, arm64
Platform IAR	Compiler gcc	ROM (BSEC) 20k	ROM (BSEC lite*) 12-13k	RAM 1k	TYPE Cortex-M0, M0+, M3, M4, M4_FPU, M7
Platform Raspberry PI0 linux	Compiler arm-linux- gnueabihf-gcc	ROM (BSEC) 71k	ROM (BSEC lite*) 56k	RAM 1k	TYPE armv6-32bits
Platform Raspberry PI3 linux	Compiler arm-linux- gnueabihf-gcc	ROM (BSEC) 72k	ROM (BSEC lite*) 57k	RAM 1k	TYPE armv8-a-64bits

BSEC size table is not considering RAM/ROM size after linking as it will vary based on embedded system project & platform.

* The BSEC lite version is an abbreviated version of BSEC with reduced code size & memory requirements. It does not include functions to save the state of BSEC, if the device powers down.

For other platforms, please contact us.