STEVAL-MKI079V1 MEMS demonstration board based on the LPR430AL (analog output two-axis gyroscope) Data brief Features Two different working modes: analog (AWM) digital (DWM) RoHS compliant Description The STEVAL-MKI079V1 is a demonstration board designed to provide the user with a complete, ready-to-use platform for demonstration of the LPR430AL product family. STEVAL-MKI079V1 The kit includes a sensing element and an IC 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-MKI079V1 demonstration board has been designed for use in two different 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 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. September 2010 Doc ID 17921 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 37 * N N 2 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% 2L ED 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 L 5 0 2 3 N 6 6DDF 1 0 0 40 6 *0 40 53NI 6/ 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 TB TB 2 X X 6 . 6 . 2 &) N& 2 N& *0 *0 2 2 6D . 2 2 2 2 /549 /548 ,% 5 0O U& N N 40 6 * 6 5 &) N& N 2 *0 Schematic diagram STEVAL-MKI079V1 1 Schematic diagram Figure 1. Circuit schematic ESLC P3U RLEYWP 6 U& & & 6 &U . 45 43 & & &U 24 2 & 2 + 2 6DDF NUT .TE2ES DU DD6T 5%3 , + + + + CDAAT KLCC %3 ECSL U U U & ) 0 + EF - 2 2 FE T N A 2 T N A T ED NA T A T N C S TDUDD6 4, 6 .4/ OCTS M (Z- & D D .TTNO- FE 4./ ) 9. 9 X/54 CIN . 6 4,&) C S 43 6RFE & % 6RFE U& -0 / -0 / S 6S (0 3%) 6P,P D6D (0 LE CS 4 2% 3% + 3 % 4 2ES 3 -)3/ D . ). 33 U TDD6D F 6DD ). 0 . 5% 3 0 34 , ) + 0 8 X/54 CC 0 4 ) 0 0 AT ADC U 34 6DD 0 U 0 A 6DD 0 F 6DD 8 ). SA6S 0 &N D S 6S 0 / ). 3 0 IC N U(0 TN-OUDET 54/3/ 0 OC - 0 CC U& T 2 + & 64, /.4 DE 5%3 , & U & U& + & - FE 2 + 2 - 6 MI 2/4 Doc ID 17921 Rev 1 RE -EAS RRE U EDOU ED 2L 4 2 - 07 0 0 0 0 37 6R /U UTOS OS IC X/UT LKIC 34 . 6D 3) -/ 3 , %3N2 . IC . - 07 X/UT /U /U /U 6R 6R