Reference
Library
- Download the Library Files and Example Codes for Arduino.
Communication Protocol Description
Protocol Format
- START: start code, always
0xFF. - LEN: length, the total number of bytes from START to END.
- ADDR: device address. Range:
0x60–0x63.0x00is the broadcast address and can be received by all devices. - CMD: command code or response code.
- DATA: data field; refer to the instruction code description for details.
- CHK: checksum, the sum of all bytes from START to DATA.
- END: end code, always
0xED.
Example:
FF 08 60 01 20 03 8B ED
Here 8B is the checksum:
0xFF + 0x08 + 0x60 + 0x01 + 0x20 + 0x03 = 0x8B
Response Code
| Correct | Error | Unknown Error | Time-out Error | Checksum Error | Length Error | Command Error | Register Address Error | Parameter Error | Write Error |
|---|---|---|---|---|---|---|---|---|---|
| 0xE0 | 0xE1 | 0xE2 | 0xE3 | 0xE4 | 0xE5 | 0xE6 | 0xE7 | 0xE8 | 0xE9 |
Command Code
| Write Register | Read Register | Data Message | Request Message |
|---|---|---|---|
| 0x01 | 0x02 | 0x11 | 0x12 |
The values listed above are the command codes. A corresponding response code will be returned to indicate whether the operation succeeded or failed.
Label Classification
Human Detection
None
Ball Detection
| Label | Objects |
|---|---|
| 1 | Orange Ping-pong ball |
| 2 | Green tennis |
Color Detection
| Label | Color |
|---|---|
| 1 | Black(dark grey) |
| 2 | White(light grey) |
| 3 | Red |
| 4 | Yellow（orange） |
| 5 | Green |
| 6 | Cyan（blue-green） |
| 7 | Blue |
| 8 | Purple |
Card Detection
Pattern Detection
| Label | Pattern |
|---|---|
| 1 | Tick |
| 2 | Cross |
| 3 | Circle |
| 4 | Square |
| 5 | Triangle |
Traffic Sign Card
| Label | Traffic Sign |
|---|---|
| 1 | Go |
| 2 | Turn left |
| 3 | Turn right |
| 4 | Turn around |
| 5 | Stop |
Number Card
| Label | Number |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 0 | 0 |
Output Mode and Address Selection
The sensor has two output modes: UART and I2C. Switch the output mode via DIP switch. (The DIP switch marked "Output" is for changing output mode.)
There are four addresses for the sensor to choose from 0x60-0x63. Address in the range is suitable for both output modes. Alter the address via DIP switch. (The DIP switch marked "Address" is for changing address.)
Select Output Mode
A 2-bits DIP switch is used to select signal output type, defined as the chart:
| Bit 1 | Wifi Switch | Bit 2 | Signal Output mode |
|---|---|---|---|
| 0 | Disable Wifi function * | 0 | UART |
| 1 | Enable Wifi function * | 1 | I2C |
- Indicates that the function is not supported in the current version.
- Switch up for position 1, switch down for position 2.
Select Address
A 2-bits DIP switch is used to select device address, defined as the chart:
| Bit 1 | Bit 2 | Address |
|---|---|---|
| 0 | 0 | 0x60 |
| 0 | 1 | 0x61 |
| 1 | 0 | 0x62 |
| 1 | 1 | 0x63 |
- The MU sensor will respond to the 0x00 broadcast message sent from the host.
- Switch up for position 1, and switch down for position 2.
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