Meter detection not yet implemented?

[2ni]

Describe the bug
I tried to configure the GroveAi in circuitpython. The face detection example seems to work, but the meter not.
Whenever I try to set the algorithm to meter reading ([0xA0, 0x01, 0x03]), it doesn't save it. When reading the algo out, it keeps the one which was set before.
Also when I set the model to meter reading ([0xA0, 0x11, 0x13]), I get a timeout error from the device.

To Reproduce
Steps to reproduce the behavior:

1. set algo to 0x03 (meter reading) -> not saved, keeps algo which was set beforehand
2. set model to 0x13 (meter reading) -> timeout, can only set it to 0x00 or 0x11. Any other value results in a timeout error
   Code:

result = read(bytes([0x80, 0x01]), 2)
printhex("firmware", result)
# set algo (meter: 0x03)
write(bytes([0xA0, 0x01, 0x03])) # can only set 0=object detection,1=object counting,2=classification
result = read(bytes([0xA0, 0x00]), 1)
printhex("algo (expected 0x03):", result)

# set model (meter: 0x13 according to Protocol.md, 0x01 according to meter_reading.ino. Both fail)
write(bytes([0xA0, 0x11, 0x01]))
result = read(bytes([0xA0, 0x10]), 1)
printhex("model (0x01):", result)

Output:

firmware 0x01 0x30
algo (expected 0x03): 0x01
Traceback (most recent call last):
  File "code.py", line 58, in <module>
  File "code.py", line 31, in read
OSError: [Errno 116] ETIMEDOUT

The Protocol.md states model=0x13 for meter reading, but according to Seeed_Arduino_GroveAI.h there's no 0x13. And the example meter_reading.ino sets model=0x01 for meter reading. But this also leads to a timeout.

I fear that the meter reading "classification" is not yet deployed to the latest code version?

Expected behavior
I would expect to be able to set the algo and model according to the doc or example for meter reading without leading to an error.

[LynnL4]

Hi, have you tried upgrading the firmware, are the other modes normal. https://github.com/Seeed-Studio/Seeed_Arduino_GroveAI/releases