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fix(envea): remove double read that consumed sensor response

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The CAIRSENS sensor sends response in a single block, not two parts.
The initial read was consuming all 25 bytes leaving nothing for the
actual data read.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
PaulVua
2026-01-23 17:22:45 +01:00
parent eeaaeca4a7
commit b60f044105
1 changed files with 0 additions and 6 deletions
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6
envea/read_value_v2.py
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@@ -118,12 +118,6 @@ try:
time.sleep(0.5) time.sleep(0.5)
# Read fixed number of bytes (not readline which stops at 0x0A) # Read fixed number of bytes (not readline which stops at 0x0A)
# First read to consume any echo/acknowledgment
initial_data = serial_connection.read(serial_connection.in_waiting or 1)
debug_print(f" ← Initial read: {len(initial_data)} bytes")
# Small delay then read the actual response
time.sleep(0.1)
data_envea = serial_connection.read(32) # Read fixed 32 bytes data_envea = serial_connection.read(32) # Read fixed 32 bytes
debug_print(f" ← Received {len(data_envea)} bytes: {data_envea.hex() if data_envea else 'empty'}") debug_print(f" ← Received {len(data_envea)} bytes: {data_envea.hex() if data_envea else 'empty'}")