STEVAL-MKI081V1 MEMS demonstration board based on the LPR403AL (analog output 2-axis gyroscope) Data brief Features Two working modes: analog (AWM) digital (DWM) RoHS compliant Description The STEVAL-MKI081V1 demonstration board is designed to provide the user with a complete, ready-to-use platform for demonstration of the LPR403AL product family. The kit includes a sensing element and an IC STEVAL-MKI081V1 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-MKI081V1 demonstration board has been designed for use in two working modes: analog and digital. In analog 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 mode (DWM) the microcontroller on the board is enabled and 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. August 2010 Doc ID 17683 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 37 * N N 6 IC N2%4 6 IC IC * 0 0 0 0 0 0 N& 0 0 N 0 *0 0 0% & 0% + /U L 0% 6SSF 3/ + & ) 6DDF 1 *0 6R 6DDF ) 56DD /UT ) 56 X/UT ) 5 /U /UT ) 5 X/UT 56SS (0 2 6DDF 2 (0 (0 *0 2L ED L 5 0 2 N 6 6DDF 1 34 0 0 40 6 *0 40 6/ 53NI IC N P& P& . 34 O O . NC 2 2 2 N 0 6DDF 3( - *0 34 9OSC N 6 5 34 * *0 6DDF OU OS 6 .O .O TB TB 2 X X 6 . 6 . 2 &) N& 2 N& *0 *0 2 2 6D . 2 2 /549 /548 ,% 5 0O U& N N 40 6 * 6 5 &) N& N *0 Schematic diagram STEVAL-MKI081V1 1 Schematic diagram Figure 1. Schematic circuit SCLE UP3 REPLYW U 6 & & & 6 & U . 45 & & & U 2 4 3 2 & 2 + 2 FD6D T UN T.E 2ES DD6DUT 5 3,% + + + + ATCAD CCKL 3% LCSE U U U & ) 0 + FE - 2 2 FE T N A 2 T N A T DE TNA NA T SC DD DU6T 46 , .4/ TCSO M Z(- & D D ENT-DOTU FE )9 /4 CIN . 4 9 X/UT 6 ,&) 4 SC 4 % 2 & 6RFE . 6RFE &U . / -0 / -0 S 6S (0 . 3%) 6P,P D6D (0 EL SC 4 + 3 % 4 2ES . 3 -)3/ . D6D ). 33 U TDD6D F 6DD ). 0 53 0 34 , ) + 0 CC 0 4 8 4 ) 0 0 TA ADC U 34 6DD 0 U 0 A 6DD 0 F 6DD ).8 SA6S 0 D &N S 6S 0 / ). 3 0 IC N U(0 TNUO-ED 54/3/ 0 T OC - 0 CC U & 2 + T/U & ,4 6 /.4 2L DE ED 53,% & &U U & 2 + & 2 - EF 2 + 2 2 MI - V 2/4 Doc ID 17683 Rev 1 RE -EAS RRE U 34 - 07 0 0 0 0 2 37 6R UTOS OS IC X/UT X/5 LKIC 34 3) -/ 3 , %3N2 3% 2% IC - 07 X/5 /U /U /U 6R 6R