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FCC Caution: 

Any Changes or modifications not expressly approved by the party responsible 

for compliance could void the user's authority to operate the equipment. 

This device complies with part 15 of the FCC Rules. Operation is subject to the 

following two conditions: (1) This device may not cause harmful interference, 

and (2) this device must accept any interference received, including 

interference that may cause undesired operation. 

IMPORTANT NOTE:     

Note: 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. This equipment generates, uses and can radiate radio 

frequency energy and, if not installed and used in accordance with the 

instructions, may cause harmful interference to radio communications. 

However, there is no guarantee that interference will not occur in a particular 

installation. If this equipment does cause harmful interference to radio or 

television reception, which can be determined by turning the equipment off and 

on, the user is encouraged to try to correct the interference by one or more of 

the following measures:     

—Reorient or relocate the receiving antenna.     

—Increase the separation between the equipment and receiver.     

Содержание XIAO nRF52840 Sense

Страница 1: ...anagement because of the BQ25101 chip In addition it carries two extra onboard sensors One of them is a digital microphone created through Pulse Density Modulation PDM module on the nRF52840 chip It can receive audio data in real time which allows it can be used for audio recognition The board not only receives audio data but also can speak through the MSM261D3526H1CPM microphone The other one is ...

Страница 2: ...ammed by Arduino Micro Python Circuit Python or other program languages Features Powerful wireless capabilities Bluetooth 5 0 with onboard antenna Powerful CPU Nordic nRF52840 ARM Cortex M4 32 bit processor with FPU 64 MHz Ultra Low Power Standby power consumption is less than 5μA Battery charging chip Supports lithium battery charge and discharge management Onboard 2 MB flash Onboard PDM micropho...

Страница 3: ...15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a part...

Страница 4: ...adiator your body OEM Integrators Installation Manual List of applicable FCC rules This module has been tested and found to comply with part 15 247 requirements for Modular Approval Summarize the specific operational use conditions This module can be applied in household electrical appliances as well as TV and IP camera The input voltage to the module should be nominally 5VDC typical value 5VDC an...

Страница 5: ...ts The modular transmitter has been fully tested by the module grantee on the required number of channels modulation types and modes it should not be necessary for the host installer to re test all the available transmitter modes or settings It is recommended that the host product manufacturer installing the modular transmitter perform some investigative measurements to confirm that the resulting ...

Страница 6: ...ration in Sections 15 5 15 15 and 15 29 to not cause interference The operator of the host product will be obligated to stop operating the device until the interference have been corrected Additional testing Part 15 Subpart B disclaimer The final host module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operati...

Страница 7: ...ry devices or drivers are not available When testing for emissions from the unintentional radiator the transmitter shall be placed in the receive mode or idle mode if possible If receive mode only is not possible then the radio shall be passive preferred and or active scanning In these cases this would need to enable activity on the communication BUS i e PCIe SDIO USB to ensure the unintentional r...

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