Transmit meaning,
not data.

Five lines to compress. Eight to secure.

No configuration. No model training loop. Fit a codebook, encode, decode.

from sitrep_protocol import SITREPCodebook

cb = SITREPCodebook(n_codes=256)
cb.fit(training_data)          # learn 256 centroids
code = cb.encode(reading)     # 80 bytes → 2 bytes
recon = cb.decode(code)      # 2 bytes → 80 bytes

from sitrep_protocol import SITREPSession

alice = SITREPSession(shared_key=b"secret")
bob   = SITREPSession(shared_key=b"secret")

# Authenticated send
frame = alice.send(code)        # HMAC + ratchet
data  = bob.recv(frame)         # verify + advance

# 10 bytes on the wire. Zero trust. Zero cloud.

Bytes on the wire

Every other protocol sends the kitchen sink. SITREP sends 10 bytes.

Power that lasts

Less data means less radio time. Less radio time means years more battery.

CR123A battery, 1 report/minute

Validated everywhere

12 sensor domains. 31 datasets. Zero synthetic data.

Runs on everything

From a $0.50 ATtiny to a beefy Cortex-M7. Same protocol, same results.

16 KB flash. 480 bytes RAM. Zero malloc. C11.