STEVAL-MKI072V1 MEMS demonstration board based on the LY3100ALH analog output single-axis gyroscope Data brief Features Two working modes: analog (AWM) digital (DWM) RoHS compliant Description The STEVAL-MKI072V1 is a demonstration board designed to provide the user with a complete, ready-to-use platform for demonstration of ST MEMS devices in the LY3100ALH product family. The kit includes a sensing element and an IC STEVAL-MKI072V1 interface capable of translating information from the sensing element into a measured signal that can be used for external applications. In addition to the MEMS sensor, the demonstration board uses an ST7 microcontroller which functions as a bridge between the sensor and the PC. This makes it possible to download the graphical user interface (GUI) from the website or to use dedicated software routines for customized applications. The STEVAL-MKI072V1 demonstration board has been designed for use in two different working modes: analog and digital. In analog working mode (AWM), the microcontroller on the board is disabled and the analog outputs of the device are available to the user on a dedicated connector. This is the default working mode when the power supply is applied either through the USB connector or through the supply connector. In digital working mode (DWM), the microcontroller on the board is enabled and it allows the user to digitally acquire the output signals of the device, to see them on the PC through the dedicated GUI, and to control the control pins of the device. November 2010 Doc ID 18236 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 37 * N N ) 0 6 IC N2 6 * 0 0 0 0 0 0 N& 0 0 N 0 0 0% & 0% + L / 0% / 6SSF 3/ *0 + & ) 6DDF 1 6R 6DDF ) 56DD /UT ) 56 /UT NA X/UT ) 5 ) 5 56SS 2 U & L 5 0 N 6 6DDF 1 0 0 40 6 *0 40 53NI 6/ N P& P& . 34 O . NC 2 2 N 0 6DDF 3( - *0 34 9OSC N 6 5 34 * *0 6DDF 6 2 34 2 2 6 5 2 0 ,% .O 2 U& N N X/UT 40 6DD * 6 5 *0 Circuit schematic STEVAL-MKI072V1 1 Circuit schematic Figure 1. Circuit schematic LECCSI 6 & 6 U . 54 E WPUL3PY & & 342 2 & & 2 + 2 .E 2EST 5,%3 2 + 2 + 2 + I I 3 LE AC CCLCK %4% CS & U U U 6D FD RAS-ET EU URREN DU T 2 2 . 4/ EF 2LED T N A 2 &N DE 2 + &N & S C OSCOTU M (Z- & FE CISON O S C , (,9 % 2 &4 U& . - -0 - 0 S 6S 3%,) 6PP D6D LE CS 2ES 4 2% 3% + 3 % 4 4 . -/ ) 3 /UT -)3/ 3 33 ). F 6DD 6RFE .6 4/ 0 ). 6REF .6 4/ . 5% 3 0 , ) + 0 C K I CCL 4 / 0 5 8 4 ) 0 AT ACD U 34 0 6DD U 0 0 A 6DD F 6DD U TD6DD U TD6DD 0 & N SA6S U TD6DD 0 S 6S S / . ) 3 0 IC N 54/3/ 0 OC 2 2 - 0 CC U & 2 + U- TDT EON & 2 2 D6DU 2L ED DT ED %,53 &U &U & 2 2 MI - 6 2/4 Doc ID 18236 Rev 1 R 0O 2E 34 & 34 - 07 0 0 0 0 CD AT 37 UTOS OS IC 34 3 , 8/5 %3N2 IC 07 /U 6R