STEVAL-MKI111V1 STMicroelectronics, STEVAL-MKI111V1 Datasheet
STEVAL-MKI111V1
Specifications of STEVAL-MKI111V1
Related parts for STEVAL-MKI111V1
STEVAL-MKI111V1 Summary of contents
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... LPS001WP MEMS pressure sensor Introduction The STEVAL-MKI111V1 is a low cost demonstration board for the home appliance market designed to efficiently replace the mechanical or electromechanical pressure sensor in domestic and industrial washing machines (or similar appliances), where the measurement of the water level is performed by a pressure measurement. ...
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... Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 How the system works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.1 2.3.2 2.3.3 2.3.4 3 Connectors, test pins and jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 The STEVAL-MKI111V1 layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6 Software customization and real-time debug . . . . . . . . . . . . . . . . . . . . 20 6.1 Pressure signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.2 Temperature signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2/23 General terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Intended use ...
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UM1502 List of tables Table 1. Connector pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... List of figures List of figures Figure 1. STEVAL-MKI111V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. STEVAL-MKI111V1 block diagram Figure 3. STEVAL-MKI111V1 circuit schematic - part Figure 4. STEVAL-MKI111V1 circuit schematic - part Figure 5. How to connect the STEVAL-MKI111V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 6. STEVAL-MKI111V1 silk-screen (top Figure 7. STEVAL-MKI111V1 silk-screen (bottom Figure 8. STEVAL-MKI111V1 top layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 9. STEVAL-MKI111V1 top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 10 ...
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... Standard in-circuit programming connector (SWIM, single wire interface module) ● RoHS compliant. 1.2 Target applications As a water level detection demonstration board, the STEVAL-MKI111V1 is mainly targeted at the home appliance market for applications including: ● Domestic or industrial washing machines ● General purpose water level systems ● ...
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... System introduction 1.3.3 Installation The installation of the STEVAL-MKI111V1 is described in this document. The components must be protected against excessive strain. In particular, no components should be bent, or isolating distances altered during transportation, handling or use. No contact must be made with electronic components and contacts. The STEVAL-MKI111V1 contains electrostatically sensitive components, which may be damaged if used improperly ...
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... Block diagram The water level detection demonstration board can be divided into a few simple blocks. Figure 2. STEVAL-MKI111V1 block diagram ● Power supply The power supply is designed using a low drop positive voltage regulator with fixed output voltage set at 3.3 V DC. The input voltage is in the range 5-12 V DC. The power supply is protected against reverse polarity. ● ...
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... In a real application, there is no such a button to press; the zero reference is set by the main MCU through a dedicated software routine. ● STM8S103F2 The entire process is controlled by a 20-pin, 8-bit STM8S103F2 microcontroller. The code size of the firmware is below 2 Kilobytes. 2.2 Schematic diagram Figure 3. STEVAL-MKI111V1 circuit schematic - part 1 8/23 Doc ID 022625 Rev 1 UM1502 ...
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... UM1502 Figure 4. STEVAL-MKI111V1 circuit schematic - part 2 2.3 How the system works The demonstration board functionality can be tested with or without the container. In fact, even if no container is connected to the demonstration board through the rubber tube, all signals are clearly visible by means of a scope. Pressure and temperature can also be read in real-time by connecting the demonstration board debugging tool with SWIM interface ...
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... Therefore, a frequency means a pressure of 30 mbar. This frequency range has been adopted to simulate electromechanical pressure sensors. In this way, it's very easy to replace it with the STEVAL-MKI111V1 demonstration board. The signals coming from the MEMS sensor are also available on connector J2, although an external MCU must be connected through the I² ...
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... UM1502 3 Connectors, test pins and jumpers Figure 5 describes the connectors, test pins and jumpers of the STEVAL-MKI111V1 demonstration board. Figure 5. How to connect the STEVAL-MKI111V1 ● The power supply must be applied to connector J1 ● The ST debugging tool with SWIM interface must be connected to connector J4 ● ...
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Connectors, test pins and jumpers Table 1 to Table 5 used in the demonstration board. Table 1. Connector pinout description Connector Table 2. Test points description Test point TP1 TP2 TP3 TP4 TP5 TP6 TP7 Table ...
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UM1502 Table 5. I²C interface connector (J5) Pin Connectors, test pins and jumpers Description 3 GND Serial clock, SCL Serial data, SDA Doc ID 022625 Rev 1 13/23 ...
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... Stripline 2P, 2.54 mm Stripline 4P, 2.54 mm Stripline 3P, 2.54 mm Tact switch, 6x6 mm, through hole 10 kΩ , 1%, 0805 SMD 560 Ω , 1%, 0805 SMD 4.7 kΩ , 1%, 0805 SMD 0 Ω , 1206 SMD Test point LD1117S33TR, SOT-223 STM8S103F2P6, TSSOP20 LPS001WP, HCLGA-8L Doc ID 022625 Rev 1 UM1502 Table 6. Supplier STMicroelectronics STMicroelectronics STMicroelectronics ...
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... UM1502 5 The STEVAL-MKI111V1 layout The STEVAL-MKI111V1 is a standard, single-layer, coppered PCB with a copper thickness of approximately 35 µm. The PCB material is FR-4. PCB dimensions: ● Length ● Width ● Thickness Figure 6. STEVAL-MKI111V1 silk-screen (top) The STEVAL-MKI111V1 layout Doc ID 022625 Rev 1 15/23 ...
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... The STEVAL-MKI111V1 layout Figure 7. STEVAL-MKI111V1 silk-screen (bottom) 16/23 Doc ID 022625 Rev 1 UM1502 ...
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... UM1502 Figure 8. STEVAL-MKI111V1 top layer The STEVAL-MKI111V1 layout Doc ID 022625 Rev 1 17/23 ...
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... The STEVAL-MKI111V1 layout Figure 9. STEVAL-MKI111V1 top view 18/23 Doc ID 022625 Rev 1 UM1502 ...
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... UM1502 Figure 10. STEVAL-MKI111V1 bottom view The STEVAL-MKI111V1 layout Doc ID 022625 Rev 1 19/23 ...
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... Software customization and real-time debug 6 Software customization and real-time debug The STEVAL-MKI111V1 demonstration board can be fully adapted to the container the user intends to test. The firmware included in the demonstration board kit is provided as open source. The demonstration board can be connected debugging tool with SWIM interface in order to read in real-time the signals coming from the MEMS sensor ...
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... Ordering information The demonstration board is available through the standard STMicroelectronics ordering system. The order code is: STEVAL-MKI111V1. The kit includes an assembled demonstration board screwed to the metal box, the source code in C language, and all related documentation. The rubber tube to connect the container to the demonstration board is also included in the kit ...
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Revision history 9 Revision history Table 7. Document revision history Date 16-Mar-2012 22/23 Revision 1 Initial release. Doc ID 022625 Rev 1 UM1502 Changes ...
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... UM1502 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...