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19 Feb 2015


The VL6180X is the latest product based on ST’s patented FlightSenseTMtechnology. This is a ground-breaking technology allowing absolute distance to be measured independent of target reflectance. Instead of estimating the distance by measuring the amount of light reflected back from the object (which is significantly influenced by color and surface), the VL6180X precisely measures the time the light takes to travel to the nearest object and reflect back to the sensor (Time-of-Flight).

Combining an IR emitter, a range sensor and an ambient light sensor in a three-in-one ready-to-use reflowable package, the VL6180X is easy to integrate and saves the end-product maker long and costly optical and mechanical design optimizations.

VL6180X – Proximity sensor, gesture and ambient light sensing (ALS) module – [Link]

8 Oct 2014


by Graham Prophet @ edn.com:

STMicroelectronics’ MP23AB02B MEMS microphone maintains ultra-low distortion at less than 10% up to very high external sound-pressure levels, enabling equipment such as smartphones and wearable devices to perform better when placing calls or recording audio in loud environments.

With acoustic overload level of 125 dB SPL and signal-to-noise ratio of 64 dBA, the 3.35 x 2.5 x 0.98-mm microphone employes ST’s dedicated preamplifier design, which prevents saturation of the output signal even when background-noise levels are high, such as in concert venues, bars or clubs, or if the user is speaking loudly close to the microphone. In addition, omnidirectional sensitivity ensures overall performance and versatility in mobile applications.

Smart MEMS mic hears better in loud environments – [Link]

24 Feb 2014


Alexander Czajor from ST writes:

ST has just released the STM32 Nucleo. This is a series of development tools that allow to quickly evaluate any STM32. These boards are extensible with Arduino, and they are supported by mbed. This makes them a good basis for any embedded commu

The main idea:

– A lean board
– Contains and STLink debugger/programmer (as all ST MCU evaluation tools do)
– Contains an STM32 in 64pin package
– Carries Arduino UNO v3 connectors
– Carries another connector called “Morpho” (and ST development)
– Has 2 Vreg and a couple of buttons and LEDs

Starting from there, every STM32 Nucleo board has the same layout making the each I/O pin of the contained micro available on the same physical location of the Arduino and “Morpho” connector. Many functions are common to all STM32 on the same pin location.

Arduino compatibility:
– The boards have the Arduino UNO R3 connector. This connector carries a so called IOREF pin. This pin allows the Arduino shields to adjust the IO voltage to the 3V3 for the STM32 if these shields follow the specification. The official Arduino shields are said to do so


STM32 Nucleo development series – [Link]

19 Aug 2013


ST Microelectronics has introduced what it is calling the world’s smallest digital e-compass — a three-axis magnetometer combined with a three-axis accelerometer on a 2x2mm MEMS chip.

By saving board space on next-generation mobile devices, this device should enable new ultra-miniature, location-aware applications. Micro-electromechanical systems already provide much of the smarts to smartphones, and ST is already a major supplier for devices from Apple’s iPhone to Samsung’s Galaxy. However, a new generation of smartphones and other personal devices will have even less board space.

ST said in a press release that its new LSM303C is 20 percent smaller than previous models, saving just under a square millimeter of board space. That does not seem like much, but it will be welcome for devices such as smartwatches or monitoring bracelets, where space is especially precious.

ST Introduces Smallest MEMS Compass – [Link]

3 Mar 2013


STMicroelectronics has added a high-performance standalone 3-axis magnetometer to its MEMS sensor portfolio – [via]

By introducing the 2 x 2 x 1mm LIS3MDL magnetometer, ST now offers unique flexibility for designers to implement movement and position detection in space-constrained products such as smartphones and personal navigation devices. The device can also be combined with other discrete sensors from ST such as 3-axis MEMS accelerometer or 3-axis MEMS gyroscope, to build sensors with as many as 9 degrees of freedom (DOF).

LIS3MDL – Single-chip magnetometer by ST – [Link]





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