EVB90129 Melexis

EVB90129 MLX90129 Evaluation Board Manual Features Application Examples Versatile A/D interface for resistive Asset management and monitoring sensors (security and integrity) ISO15693 13.56MHz transponder Building automation Slave / Master SPI interface Supply chain monitoring of temperature 4 k-bit EEPROM with access protection and other parameters Standalone data-logging mode Industrial, medical and residential Ultra low power control Battery or battery-less applications Low cost and compact design Ordering Information Part No. EVB90129 General Description The EVB90129 is an assembled printed circuit board EVB90129. This allows easy connection to a that simplifies evaluation of the MLX90129 sensor tag microcontroller. IC and to facilitate the development of wireless sensor applications based on the MLX90129. The EVB90129 was developed to demonstrate a wide range of applications, from fully passive sensor tag operation to complex data logging. Each of its elements can be reconfigured by means of jumpers. The board can be powered either by an external voltage supply, the on-board battery or the electromagnetic field from a RFID reader. In addition to the internal temperature sensor of the MLX90129, the EVB90129 embeds 3 external sensors, light, temperature and potentiometer to demonstrate the flexibility for measurement of a variety of physical quantities. The custom prototyping area allows users to integrate their own sensor or circuit into this evaluation board. The EVB90129 is capable of storing 128 Kbit of data s in the SPI EEPROM memory connected to the MLX90129. The EVB90129 can be accessed and controlled through a contactless (RFID) or a contact (SPI) interface. The RFID access to the MLX90129 and the related commands are compliant with the ISO15693 standard. The SPI and other digital inputs/outputs from the MLX90129 are connected to an 8-pin connector of the REVISION 003 - JUNE 20, 2017 390129012901 EVB90129 MLX90129 Evaluation Board Manual Contents Features ..................................................................................................................................................... 1 Application Examples ................................................................................................................................. 1 Ordering Information ................................................................................................................................. 1 General Description ................................................................................................................................... 1 1. EVB90129 global description .................................................................................................................. 3 2. EVB90129 Power Supplies ...................................................................................................................... 5 3. EVB90129 Communication ..................................................................................................................... 5 3.1. External SPI connector ........................................................................................................................ 5 3.2. Slave Select selector............................................................................................................................ 6 3.3. RFID antenna ....................................................................................................................................... 7 3.4. Register Configuration ........................................................................................................................ 7 4. Sensor description ................................................................................................................................. 8 4.1. Internal temperature sensor .............................................................................................................. 8 4.2. Light sensor ......................................................................................................................................... 8 4.3. External temperature sensor.............................................................................................................. 9 4.4. Potentiometer sensor ......................................................................................................................... 9 5. Miscellaneous peripheries ................................................................................................................... 10 5.1. Padlock or security device function ................................................................................................ 10 5.2. External SPI memory ........................................................................................................................ 10 5.3. External XTAL .................................................................................................................................... 10 5.4. Test points and patch area .............................................................................................................. 11 6. Using the EVB90129 ............................................................................................................................. 11 7. Schematic ............................................................................................................................................ 11 8. List of components ............................................................................................................................... 12 9. Contact ................................................................................................................................................ 13 10. Disclaimer .......................................................................................................................................... 13 REVISION 003 - JUNE 20, 2017 390129012901