SEK-SVM4x evaluation kit

For the SGP41 and SGP40 VOC/NOx sensors

Start testing the SGP4x sensor with the SVM4x evaluation kit

Includes the SVM41 development board (featuring SGP41 and SHT40), UART to USB adapter cable and jumper wire set.

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Key facts

Product type

VOC and NOx sensor

Measures

VOC and NO_xindex

Feature

VOC and NOₓ indices for performance testing

Start prototyping

Find everything you need here

Product description

The SEK-SVM4x is Sensirion’s evaluation kit, for testing the VOC and NOx Index using the SGP40 and SGP41 sensors. The SVM41 development board includes an SGP41, a microprocessor, and a combined humidity and temperature sensor (SHT40). When evaluating VOC-only output, the SVM41 devlopment board can also be used to assess the performance of the SGP40. Unlike SEK-SGP4x-Sensor, this evaluation kit features onboard signal processing via Sensirion’s Gas Index Algorithm, providing humidity-compensated VOC and NOx Index outputs. Designed for ease of use, the SVM4x enables quick and efficient evaluation of either SGP40 and SGP41 sensors with minimal setup effort.

Tutorials

Build a BLE Gadget with Arduino and SVM41 .

Drivers and sample code

SVM4x UART embedded driver	Generic driver that can be ported to new microcontrollers with little effort
SVM4x UART Arduino driver	C++ Arduino library to work with SVM4x via UART
SVM4x UART Raspberry Pi driver	C Raspberry library to work with SVM4x via UART
SVM4x UART Python driver	Python driver to work with the SVM4x evaluation kit over UART using SHDLC protocol
SVM4x I2C embedded driver	Generic driver that can be ported to new microcontrollers with little effort
SVM4x I2C Arduino driver	C++ Arduino library to work with SVM4x via I2C
SVM4x I2C Raspberry Pi driver	C Raspberry library to work with SVM4x via I2C
SVM4x I2C Python driver	Python driver to communicate with SVM4x using the I²C interface

Resources

SGP40 and SGP41 gas sensors	SEK-SVM4x evaluation kit
Datasheet SGP40	Technical description
Datasheet SGP41	I²C interface description
Datasheet SHT4x	UART interface description
SGP4x STEP file	Reference design
SGP4x altium footprint	Quick start guide ControlCenter
Handling and assembly instructions
Design-in guide
Quick testing guide SGP40
Quick testing guide SGP41

Evaluate without writing code

In just few simple steps, you will be collecting valuable data without needing any coding or soldering skills.

Step 1:

Download the SEK-ControlCenter viewer software (available for Windows, Linux and MacOS) or download one of our example drivers for your embedded platform (see links above). A simple step-by-step quick start guide can be found here.

Step 2:

Connect the SVM41 development board to your computer/embedded platform with the help of the adapter and start measuring.

Find out what the evaluation kit holds

SVM41 development board

SGP41 VOC+NOx sensor and SHT40 humidity and temperature sensor
UART and I²C interface via 6-pin Molex Micro-Lock Plus connector
Supply voltage VDD: 3.3 or 5.0 V
Size: 39.0 x 15.0 x 5.5 mm3

USB-UART cable (6-pin) to connect the SVM4x development board directly to a USB port, e.g. on a PC

Jumper wire set (6-pin Micro-Lock Plus cable set) to connect the SVM41 development board to embedded platforms like Arduino, Raspberry Pi, etc. A 10-pin 0.1" pitch-gender changer is also provided.

Cable configuration:

Red cable = VDD
Black cable = GND
Green cable = SDA (I²C) or RX (UART)
Yellow cable = SCL (I²C) or TX (UART)
Blue cable = SEL (interface select – connect to GND for I²C, connect to VDD or leave open to select UART)
Purple cable = NC (do not connect)