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Amazon Echo Button (H5V83Y)

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Amazon Echo Button (H5V83Y)
Availability: now

FCC approval date: 16 October 2017
Country of manuf.: China

FCC ID: UUU-4612

BT WI1 chip 1: Cypress CYW20735

Categorized as: Bluetooth button

Flags: Bluetooth BR/LE

OUI: none specified

Bluetooth Button

Product page

Part of the Alexa Gadgets product line.

Power: 1.5V (|| 2x AAA battery)
FCC ID: UUU-4612 (10/16/2017)
- Amazon Fulfillment Services

This device was under short-term confidentiality, but that expired 04/14/2018.

Teardown[edit]

Bluetooth SoC: Cypress CYW20735 (Broadcom BCM20735)
Bluetooth Low Energy Single Chip

SWD header:

 TMF1: - ?? -   - (+VCC ??)
 TMF2: SWDIO ?? - ( GND !!)
 TMF9: SWCLK
TMF10: GND ??
TMF11: RESET
TMF12: VCC ??
TMF22: SWO

Linux (BlueZ 4.101):

$ sudo hcitool info xx:xx:xx:xx:xx:xx
Requesting information ...
    BD Address:  xx:xx:xx:xx:xx:xx
    Device Name: EchoBtn2V8
    LMP Version:  (0x8) LMP Subversion: 0x4118
    Manufacturer: not assigned (305)
    Features page 0: 0xbf 0x06 0x46 0x78 0x58 0x1e 0x5b 0x87
       <3-slot packets>  <5-slot packets>  <encryption>  <slot offset> 
       <timing accuracy>  <role switch>  <sniff mode>  <RSSI> 
       <channel quality>  <paging scheme>  <power control> 
       <enhanced iscan>  <interlaced iscan>  <interlaced pscan> 
       <inquiry with RSSI>  <AFH cap. slave>  <AFH class. slave> 
       <LE support>  <sniff subrating>  <pause encryption> 
       <AFH cap. master>  <AFH class. master>  <extended inquiry> 
       <LE and BR/EDR>  <simple pairing>  <encapsulated PDU> 
       <non-flush flag>  <LSTO>  <inquiry TX power>  <EPC> 
       <extended features> 
    Features page 1: 0x0f 0x00 0x00 0x00 0x00 0x00 0x00 0x00
    Features page 2: 0x40 0x18 0x09 0x00 0x14 0x12 0x09 0x00