INVISIO ASM11374 Bluetooth Low Energy Module USER MANUAL
Contents Disclaimer 4 Block schematics 6 8 10 Top picture 2 12 Button picture 14 Regulatory 16 3
Disclaimer The information in this INVISIO User Manual (the “User Manual”) is subject to change without notice and INVISIO is under no obligation to provide the user with updates, amendments or modifications. This User Manual describes the use of the INVISIO System (the “Product“) which includes headset, control unit, cables and accessories.
ASM11374 Block schematics 6 7
Hardware Description ASM11374 is made for communication purposes via Bluetooth Low Energy. Main system blocks: • Microcontroller nRF52832 with ARM Cortex M4 CPU, 512 kB flash and 64 kB RAM memory. • 1.85V supply • Data is exposed via Inter Integrated Circuit (I2C) to external device • Communication during production test is done via Universal asynchronous receiver transmitter interface (UART) • Programming is done via Serial Wire Debug Interface (SWD) • RF Tuning at 50 Ohm and a 2.
Software description The software is written in C and based on Nordic Semiconductor's Software Development Kit labeled nRF5 SDK v15.3.0. The software consists of three parts: • Bootloader used for upgrades • Softdevice used for BLE radio parts o the softdevice is not modified, it's provided as a binary from chipset supplier Nordic Semiconductor • Application used for the specific functionality.
Top picture 12 13
Button picture 14 15
Regulatory Regulatory This appliance complies with European Directives 2014/35/EU, 2014/30/EU, 2011/65/EU and hearing protection Regulation (EU) 2016/425. This product complies with the hearing protection standard: EN 352-1:2002, EN 352-4:2001 + A1:2005 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Technical details can be seen in the attached instrauction for nRF52832 © 2019 INVISIO Communications A/S. Stamholmen 157, 2650 Hvidovre, Denmark INVISIO is a registered trademark of www.invisio.com INVISIO Communications A/S.
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