Legacy edition, no longer supported: SharpShot Vision units shipped before 2026-10 (School and WRO editions) are no longer supported; their guides and examples stay here for reference. To upgrade to the current SharpShot Vision, contact the distributor you bought it from and send it back: the firmware update is free, and the buyer pays shipping both ways.

Looking for the current SharpShot Vision? →Legacy overview

This page has moved into the new guide: SharpShot Vision

Vision Sensor (School Edition): value & command reference

Back to Vision Sensor (School Edition)

Every value and command the Vision Sensor (School Edition) reports to each host: what it means, its range, and how to read it on SPIKE / EV3 / Arduino I2C / mBlock / MATRIX / micro:bit. Append ?host=spike (or ev3, arduino, mblock, matrix, microbit) to the URL to expand that host by default.

SPIKE EV3 Arduino I2C mBlockMATRIXmicro:bit

Item	Detail
Factory I2C address	`0x4C`
hw[0]	`1`（F0 high byte; ID high byte in SPIKE mode 8 / EV3 mode 5）
Model	`CAMSCH`
Protocol version	`2`
Hosts	SPIKE, EV3, Arduino I2C, mBlock, micro:bit

Values at a glance

Id	Value	Range	SPIKE	EV3	Arduino I2C	mBlock	micro:bit
`01`	hue	-1~100	✓	✓	✓	✓	✓
`02`	saturation	0~100	✓	✓	✓	✓	✓
`03`	brightness	0~100	✓	✓	✓	✓	✓
`04`	motion	0~100	✓	✓	✓	✓	✓
`05`	blob X	0~100	✓	✓	✓	✓	✓
`06`	blob Y	0~75	✓	✓	✓	✓	✓
`07`	blob width	0~100	✓	✓	✓	✓	✓
`08`	blob height	0~75	✓	✓	✓	✓	✓
`09`	blob area	0~7500	✓	—	✓	✓	✓
`0A`	blob found	0~1	—	—	✓	✓	✓

✓ = available on that host; — = not sent.

Reading each value

`01` hue hue

Item	Detail
Meaning	hue of sample point S1, 0~~100 (hue ring 0~~240 scaled); −1 = black/white/grey (saturation < 10); 0 when S1 is not set
Range	`-1~100`
I2C / mBlock id	`01`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 0 (edu) byte 0 🔒; mode 0 (toy) byte 1 🔒; mode 5 v[0] 🔒; mode 9 v[0] lo 🔒. Note: −1 = 0xFF; 0~10（÷10）; raw = (色相×256 ± 128)/25 ≈ 色相×10.24，v[0]=v[1]=v[2]；Pybricks reflection() ÷10.24 還原

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[0]
hue = (w & 0xFF)   # hue（lo byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
hue = cam.hue()

EV3

mode 0 · int8 · IR-PROX 1×int8; mode 1 · int8 · IR-SEEK [色相, 飽和, 明度, 動態, X, Y, W, H]; mode 2 · int8 · IR-REMOTE [色相, 飽和, 明度, 動態]; mode 3 · int16 · IR-REM-A 1×int16（#65 已修成正確符號延伸，−1 = 0xFFFF）; mode 5 · int16 · IR-CAL [色相, 飽和] 2×int16 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

hue = sensor.read(0)[0]   # hue：-1~100
hue = sensor.read(1)[0]   # hue：-1~100
hue = sensor.read(2)[0]   # hue：-1~100
hue = sensor.read(3)[0]   # hue：-1~100
hue = sensor.read(5)[0]   # hue：-1~100

' clev3r (BASIC)
Sensor.SetMode(1, 0)
hue = Sensor.ReadRawValue(1, 0)
Sensor.SetMode(1, 1)
hue = Sensor.ReadRawValue(1, 0)
Sensor.SetMode(1, 2)
hue = Sensor.ReadRawValue(1, 0)
Sensor.SetMode(1, 3)
hue = Sensor.ReadRawValue(1, 0)
Sensor.SetMode(1, 5)
hue = Sensor.ReadRawValue(1, 0)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t hue = mbcRead(0x4C, 0x01);   // hue：-1~100

mBlock

Block returns hue（-1~100）。Host sends [01] → reply [lo][hi][01 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] hue :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera colour [hue v] :: #00A4E4)

let hue = mbc.camColor(MbcCamColor.Hue)   // hue：-1~100

Related block "camera colour is black / white / grey"

let camIsGrey = mbc.camIsGrey()

`02` saturation saturation

Item	Detail
Meaning	saturation of sample point S1, 0~100
Range	`0~100`
I2C / mBlock id	`02`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 9 v[0] hi 🔒

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[0]
saturation = ((w >> 8) & 0xFF)   # saturation（hi byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
saturation = cam.saturation()

EV3

mode 1 · int8; mode 2 · int8; mode 5 · int16 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

saturation = sensor.read(1)[1]   # saturation：0~100
saturation = sensor.read(2)[1]   # saturation：0~100
saturation = sensor.read(5)[1]   # saturation：0~100

' clev3r (BASIC)
Sensor.SetMode(1, 1)
saturation = Sensor.ReadRawValue(1, 1)
Sensor.SetMode(1, 2)
saturation = Sensor.ReadRawValue(1, 1)
Sensor.SetMode(1, 5)
saturation = Sensor.ReadRawValue(1, 1)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t saturation = mbcRead(0x4C, 0x02);   // saturation：0~100

mBlock

Block returns saturation（0~100）。Host sends [02] → reply [lo][hi][02 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] saturation :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera colour [saturation v] :: #00A4E4)

let saturation = mbc.camColor(MbcCamColor.Saturation)   // saturation：0~100

`03` brightness value

Item	Detail
Meaning	brightness (HSV value) of sample point S1, 0~100
Range	`0~100`
I2C / mBlock id	`03`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 9 v[1] lo 🔒

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[1]
value = (w & 0xFF)   # brightness（lo byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
value = cam.brightness()

EV3

mode 1 · int8; mode 2 · int8 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

value = sensor.read(1)[2]   # brightness：0~100
value = sensor.read(2)[2]   # brightness：0~100

' clev3r (BASIC)
Sensor.SetMode(1, 1)
value = Sensor.ReadRawValue(1, 2)
Sensor.SetMode(1, 2)
value = Sensor.ReadRawValue(1, 2)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t value = mbcRead(0x4C, 0x03);   // brightness：0~100

mBlock

Block returns brightness（0~100）。Host sends [03] → reply [lo][hi][03 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] brightness :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera colour [brightness v] :: #00A4E4)

let value = mbc.camColor(MbcCamColor.Brightness)   // brightness：0~100

`04` motion motion

Item	Detail
Meaning	whole-frame motion 0~100 (more change = larger)
Range	`0~100`
I2C / mBlock id	`04`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 0 (edu) byte 1 🔒; mode 0 (toy) byte 0 🔒; mode 9 v[1] hi 🔒

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[1]
motion = ((w >> 8) & 0xFF)   # motion（hi byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
motion = cam.motion()

EV3

mode 1 · int8; mode 2 · int8 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

motion = sensor.read(1)[3]   # motion：0~100
motion = sensor.read(2)[3]   # motion：0~100

' clev3r (BASIC)
Sensor.SetMode(1, 1)
motion = Sensor.ReadRawValue(1, 3)
Sensor.SetMode(1, 2)
motion = Sensor.ReadRawValue(1, 3)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t motion = mbcRead(0x4C, 0x04);   // motion：0~100

mBlock

Block returns motion（0~100）。Host sends [04] → reply [lo][hi][04 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] motion :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera motion :: #00A4E4)

let motion = mbc.camMotion()   // motion：0~100

`05` blob X blobX

Item	Detail
Meaning	blob centre X 0~100, left = 0; 0 when not found
Range	`0~100`
I2C / mBlock id	`05`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 0 (edu) byte 2 🔒; mode 0 (toy) byte 2 🔒; mode 6 v[0]; mode 7 v[2] 🔒; mode 9 v[2] lo 🔒. Note: byte 3 = 0; ×4 查表編碼（10-bit）; #67 改：模式 6 = [X, Y, 面積]（3×int16）; X×100+Y → Pybricks ambient() 顯示 X.Y. From Pybricks 4.1 ambient() keeps only one decimal, so the ones digit of this value is lost: install the MBC library (mode 9) instead

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[2]
blobX = (w & 0xFF)   # blob X（lo byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
blobX = cam.blob_x()

EV3

mode 1 · int8; mode 4 · int8 · IR-S-ALT [X, Y, W, H] (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

blobX = sensor.read(1)[4]   # blob X：0~100
blobX = sensor.read(4)[0]   # blob X：0~100

' clev3r (BASIC)
Sensor.SetMode(1, 1)
blobX = Sensor.ReadRawValue(1, 4)
Sensor.SetMode(1, 4)
blobX = Sensor.ReadRawValue(1, 0)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t blobX = mbcRead(0x4C, 0x05);   // blob X：0~100

mBlock

Block returns blob X（0~100）。Host sends [05] → reply [lo][hi][05 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] blob X :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera blob [X v] :: #00A4E4)

let blobX = mbc.camBlob(MbcCamBlob.X)   // blob X：0~100

`06` blob Y blobY

Item	Detail
Meaning	blob centre Y 0~75, bottom = 0, top = 75; 0 when not found
Range	`0~75`
I2C / mBlock id	`06`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 0 (edu) byte 4 🔒; mode 0 (toy) byte 4 🔒; mode 6 v[1]; mode 7 v[2] 🔒; mode 9 v[2] hi 🔒. Note: byte 5 = 0; ×4 查表編碼; X×100+Y 的個位／十位. From Pybricks 4.1 ambient() keeps only one decimal, so the ones digit of this value is lost: install the MBC library (mode 9) instead

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[2]
blobY = ((w >> 8) & 0xFF)   # blob Y（hi byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
blobY = cam.blob_y()

EV3

mode 1 · int8; mode 4 · int8 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

blobY = sensor.read(1)[5]   # blob Y：0~75
blobY = sensor.read(4)[1]   # blob Y：0~75

' clev3r (BASIC)
Sensor.SetMode(1, 1)
blobY = Sensor.ReadRawValue(1, 5)
Sensor.SetMode(1, 4)
blobY = Sensor.ReadRawValue(1, 1)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t blobY = mbcRead(0x4C, 0x06);   // blob Y：0~75

mBlock

Block returns blob Y（0~75）。Host sends [06] → reply [lo][hi][06 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] blob Y :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera blob [Y v] :: #00A4E4)

let blobY = mbc.camBlob(MbcCamBlob.Y)   // blob Y：0~75

`07` blob width blobW

Item	Detail
Meaning	blob width W 0~100; 0 = not found
Range	`0~100`
I2C / mBlock id	`07`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 9 v[3] lo 🔒

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[3]
blobW = (w & 0xFF)   # blob width（lo byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
blobW = cam.blob_w()

EV3

mode 1 · int8; mode 4 · int8 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

blobW = sensor.read(1)[6]   # blob width：0~100
blobW = sensor.read(4)[2]   # blob width：0~100

' clev3r (BASIC)
Sensor.SetMode(1, 1)
blobW = Sensor.ReadRawValue(1, 6)
Sensor.SetMode(1, 4)
blobW = Sensor.ReadRawValue(1, 2)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t blobW = mbcRead(0x4C, 0x07);   // blob width：0~100

mBlock

Block returns blob width（0~100）。Host sends [07] → reply [lo][hi][07 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] blob width :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera blob [width v] :: #00A4E4)

let blobW = mbc.camBlob(MbcCamBlob.Width)   // blob width：0~100

`08` blob height blobH

Item	Detail
Meaning	blob height H 0~75; 0 when not found
Range	`0~75`
I2C / mBlock id	`08`
Locked	🔒 LEGO mode layout will not change

How to read it

SPIKE

mode 9 v[3] hi 🔒

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

w = dev.read(9)[3]
blobH = ((w >> 8) & 0xFF)   # blob height（hi byte）

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
blobH = cam.blob_h()

EV3

mode 1 · int8; mode 4 · int8 (locked mode: firmware and hosts will not change it)

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

blobH = sensor.read(1)[7]   # blob height：0~75
blobH = sensor.read(4)[3]   # blob height：0~75

' clev3r (BASIC)
Sensor.SetMode(1, 1)
blobH = Sensor.ReadRawValue(1, 7)
Sensor.SetMode(1, 4)
blobH = Sensor.ReadRawValue(1, 3)

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t blobH = mbcRead(0x4C, 0x08);   // blob height：0~75

mBlock

Block returns blob height（0~75）。Host sends [08] → reply [lo][hi][08 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] blob height :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera blob [height v] :: #00A4E4)

let blobH = mbc.camBlob(MbcCamBlob.Height)   // blob height：0~75

`09` blob area blobArea

Item	Detail
Meaning	W×H (0~7500); 0 when not found
Range	`0~7500`
I2C / mBlock id	`09`

How to read it

SPIKE

mode 0 (edu) byte 6 🔒; mode 0 (toy) byte 6 🔒; mode 6 v[2]; mode 9 v[4] 🔒. Note: 鎖住：這裡是 map(像素面積, 0~~5000, 0~~100)，不是 W×H；byte 7 = 0; 同上 0~~100 再 ×4 查表編碼; W×H; #67 新增：byte 8~~9 = W×H（原本 0）；其餘 byte 不動

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

blobArea = dev.read(9)[4]   # blob area

MBC library

from pybricks.parameters import Port
from MBC_cam_school_Lib import MBC_CAM_SCHOOL

cam = MBC_CAM_SCHOOL(Port.A)
blobArea = cam.area()

EV3

Not sent in any EV3 mode (the locked EV3 modes stay as they are). Use Arduino I2C / mBlock if you need it.

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t blobArea = mbcRead(0x4C, 0x09);   // blob area：0~7500

mBlock

Block returns blob area（0~7500）。Host sends [09] → reply [lo][hi][09 ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] blob area :: sensing)

micro:bit

Returns 0 when the sensor does not answer; check with "device at … is ready" first.

(camera blob [area v] :: #00A4E4)

let blobArea = mbc.camBlob(MbcCamBlob.Area)   // blob area：0~7500

`0A` blob found found

Item	Detail
Meaning	1 = a blob of the target colour is in view (W > 0), 0 = none
Range	`0~1`
I2C / mBlock id	`0A`

How to read it

SPIKE

Not sent in any SPIKE mode (locked modes stay as they are). Use Arduino I2C / mBlock if you need it.

EV3

Not sent in any EV3 mode (the locked EV3 modes stay as they are). Use Arduino I2C / mBlock if you need it.

Arduino I2C

Returns MBC_NONE (−32768) when the module does not answer.

int16_t found = mbcRead(0x4C, 0x0A);   // blob found：0~1

mBlock

Block returns blob found（0~1）。Host sends [0A] → reply [lo][hi][0A ^ lo ^ hi], value = int16 little-endian.

(SharpShot Vision (legacy) port [1 v] blob found? :: sensing)

micro:bit

Returns false when the sensor does not answer.

let found = mbc.camFound()   // blob found：0~1

Related block "on camera blob [found]"

mbc.onCamBlob(MbcCamEvent.Found, function () {
})

Status flags F3

One status per bit of F3; read directly over I2C, mBlock, micro:bit.

bit	Name	Meaning
b0	ready (`ready`)	always 1 (values freeze while the camera menu is open)
b1	blob found (`found`)	same as value 0A

SPIKE

SPIKE has no F3 flags; mode 8 returns ID / version. The official app cannot read mode 8.

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port

dev = PUPDevice(Port.A)   # sensor on port A

id_word, proto, fw, seq = dev.read(8)   # mode 8: [ID | hw0<<8, protocol 2, major×100+minor, counter]
addr = id_word & 0xFF   # 0x4C
hw0 = id_word >> 8      # 1

EV3

EV3 has no F3 flags; mode 5 returns the device ID and firmware version (ID format B).

from pybricks.iodevices import LUMPDevice
from pybricks.parameters import Port

sensor = LUMPDevice(Port.S1)   # sensor on port 1

id_word, fw = sensor.read(5)   # mode 5: [ID | hw0<<8, major×100+minor]
addr = id_word & 0xFF             # 0x4C
hw0 = id_word >> 8                # 1

Arduino I2C

int16_t st = mbcRead(0x4C, 0xF3);
bool ready = st & (1 << 0);   // ready
bool found = st & (1 << 1);   // blob found

mBlock

The extension splits status flags F3 into boolean blocks (ready, calibrating, …).

micro:bit

let ready = mbc.deviceReady(0x4C)   // F3 bit0; false when nothing answers
let st = mbc.status(0x4C)   // F3

Shared registers and commands

Identical on every product, documented once in the universal I2C protocol:

Id	Name	Meaning
`F0`	device ID	low byte = factory I2C address (unchanged after re-addressing), high byte = hw[0] (channels / sensors / variant)
`F1`	protocol version	2 for this release (same number reported in SPIKE mode 8 v[1])
`F2`	firmware version	major×100 + minor (e.g. 102 = 1.2)
`F3`	status flags	b0 = ready; other bits per product (see flags)
`F4`	update counter	+1 every 10 ms snapshot, wraps 0~255 (2.56 s per cycle, not usable for reboot detection; frozen = module busy)
`F5`	uptime seconds	seconds since boot, saturates at 32767 (~9 h); a drop means the module rebooted
`F8`	change I2C address	[F8][new 0x08~~0x77][~~new], saved to EEPROM, takes effect after reboot; [F8][0x00][0xFF] = back to factory address
`EF`	reboot	[EF][0xA5]; mBlock sends ACK first, then reboots

Sources and assumptions

Generated by _build/gen-reference.mjs from _build/protocol/cam_school.json (single source of truth, transcribed from the 2026-10-21 protocol decisions).

hw0 = 1（共識 #6：神攝手 1 = 學校版）；model 字串 CAMSCH 照任務指定（韌體原本沒有型號欄位）。
D4：I2C 0x4C 用 SDA = IO3、SCL = IO1（沿 PS4 Wire.setPins 慣例），與 EV3／SPIKE 串口模式二選一編譯；ESP32 從機不能時脈延展，onReceive 預載 32 B；頁面標「硬體已確認，上機待測」。mBlock 用同一組腳 Serial.begin(38400, SERIAL_8N1, 3, 1)。
EV3 六個模式全部鎖住照盤點（模式 3／5 的 −1 已在 #65 修成符號延伸）；EV3 定案最後的 golden 備註把 cam_school 列進「模式 5 改 ID」是筆誤（定案表本身寫「—」；模式 5 仍是 [色相, 飽和]），所以 ev3IdMode = null。
SPIKE 模式 9 鎖住，只有 byte 8~~9（v[4]）從 0 改成面積 W×H；模式 6 改 [X, Y, 面積]；模式 8 = [0x4C | 1<<8, 2, 韌體版, 更新序號]；模式 1~~4 維持 0。
SPIKE 模式 0 的「面積」是 map(像素面積 0~~5000 → 0~~100)，跟值表 09 的 W×H 不同，鎖住不改（照盤點）。
mVision：N = 10（idx 0~9），色相 −1 送 255；每 20 ms 一包（B-6）；不做 0x22（hosts.matrix = false）。
0A 有找到色塊 = W > 0（盤點：W 0 = 沒找到）；F3 b1 同這個值。
值 05~08 的「沒找到 = 0」照盤點 §0；色塊 Y 下 = 0、上 = 75 照盤點（map(bestY,120,0,0,75)）。
沒有寫入命令（韌體無法從程式改目標顏色／補光燈）。