superfrink/kano-frozen-k4sb

Kano Frozen 2 Coding Kit documentation

Kano Frozen 2 Coding Kit documentation

Product

Summary

A flat octagon around 10 cm across. There are four proximity sensors placed equidistant around the outside. There are eight LEDs around the outside and one in the center that light with varying brightness depending on the proximity detected by the nearest sensor. The device connects via BlueTooth. There are some software applications that use the device for interacting with the software. There is one button that when held for three seconds puts the device to sleep. Pressing the button once wakes the device. The device is powered by two AA batteries.

Identification Information

• FCC ID: 2ATYD-1012- https://fccid.io/2ATYD-1012/
• IC ID: 25240-1012- enter as the Certification Number on https://sms-sgs.ic.gc.ca/equipmentSearch/searchRadioEquipments?execution=e1s1&lang=en
• The PCB is labeled with: KANO K4SB V1.0, P/N: HG-C-RB265C, and 19G2011A

Hardware Information

• SOC: Nordic nRF52832 - https://www.nordicsemi.com/products/nrf52832
• PW546A 4-channel switch for I2C and SMBus. Perhaps this allows the SOC to communicate with one proximity sensor at a time?
• The proximity sensors appear to use use IR reflection?
• The 9 LEDS that light with proximity are RGB.
• There is one blue LED that indicates BlueTooth connectivity state.

Circuit Board

• The PCB has pads for an un-populated USB connector labeled USB1.
• There are un-populated through-holes for an 8-pin connector labeled PROG1.
• Next to PROG1 are nine pads labeled:
  • CK
  • BT
  • TS
  • US
  • GD
  • IO
  • RT
  • SO
  • 3V
• The sleep/wake button is labeled SW1.
• There are four un-populated pads labeled SW2.
• There are many test pads labeled TP1 through TP20.
• Next to the USB pads there are two pads labeled VB1 and VB2.

BlueTooth Information

The nRF Connect app for Android from Nordic sees the device as Kano-4SB-4c-2e-62 (4c-2e-62 are the last 3 octets in the MAC address) when scanning for devices.

UUID 0x1800

FIXME: incomplete

UUID 0x1801

FIXME: incomplete

UUID 0x1801

FIXME: incomplete

UUID 11a70100-f691-4b93-a6f4-0968f5b648f8

UUID	R, W, RW, N	Value	Purpose
11a70101-f691-4b93-a6f4-0968f5b648f8	R	"Kano Computing"
11a70102-f691-4b93-a6f4-0968f5b648f8	R	"1.1.1"
11a70103-f691-4b93-a6f4-0968f5b648f8	R	"0"
11a70104-f691-4b93-a6f4-0968f5b648f8	R	"0"

UUID 11a70200-f691-4b93-a6f4-0968f5b648f8

UUID	R, W, RW, N	Value	Purpose
11a70201-f691-4b93-a6f4-0968f5b648f8	R, N	4 bytes	proximity sensor values

11a70201-f691-4b93-a6f4-0968f5b648f8

• Each of the four bytes indicates the proximity sensor value for one of the four sensors. The value ranges from 00 (object close to sensor) to FF (no object close to sensor). FF appears to be around 20 cm distance. Have not yet tested to see if the value changes linearly with distance.

Notification is supported. When enabled the values will be streamed.

UUID 11a70300-f691-4b93-a6f4-0968f5b648f8

UUID	R, W, RW, N	Value	Purpose
11a70301-f691-4b93-a6f4-0968f5b648f8	R, W	twenty bytes, all 0x00	control registers?
11a70302-f691-4b93-a6f4-0968f5b648f8	W		keep alive
11a70303-f691-4b93-a6f4-0968f5b648f8	R	0x55	battery voltage
11a70304-f691-4b93-a6f4-0968f5b648f8	R	0x19	global brightness

11a70301-f691-4b93-a6f4-0968f5b648f8

• The initial state is all 0x00.
• Writing a few byte changes the first of 20 bytes. Writing 0x01 0x55 0x00 0x55 then reading returns

0x01 0x55 0x00 0x55
0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00

• It appears writing any non-zero byte to the first byte will set the byte to 0x01. Writing 0xFFthen reading returns the same result as writing 0x01 then reading.

• The next 3 bytes control the varying brightness of the different RGB colours.

Byte	Purpose
0x00	Setting to non-zero turns the 9 RGB LEDs off. Reading sensor values is unaffected.
0x01	One of the RGB colours
0x02	One of the RGB colours
0x03	One of the RGB colours
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14

11a70303-f691-4b93-a6f4-0968f5b648f8

• On new batteries started around 0x5B, appears to decline with battery use.

11a70304-f691-4b93-a6f4-0968f5b648f8

Brightness of the 9 RGB LEDS.

• Defaults to 0x19.
• Writing 0x00 then reading returns 0x0A implying this is the lowest allowed brightness.
• Writing 0xFF then reading returns 0x64 implying this is the highest allowed brightness.
• Does not appear to affect distance of the proximity sensors.

UUID 0xFE59

FIXME: incomplete