select-protocol

name	select-protocol
description	Select the radio on the power/range/bandwidth/cost trade — don't default to Wi-Fi. Reach for this on a connectivity question.

Skill: Select connectivity protocol

Defaulting to Wi-Fi for low-rate long-range telemetry blows the power budget (§3 #6).

Step 1 — State the need

Required data rate, range, topology, and the energy budget the app allows (§3 #6).

Step 2 — Map to the regime

BLE / LoRa / Wi-Fi / cellular against that need — long-range-low-rate ≠ local-high-rate (§3 #6).

Step 3 — Cost the airtime + BOM

TX airtime energy into the power budget; module/cert cost via embedded_iot_calc.py bom-cost (§3 #6).

Step 4 — Confirm on real RF

Range/throughput claims carry a datasheet date and a real-environment caveat (§3 #7 #8).

Output

A protocol selection on the power/range/bandwidth/cost trade with the airtime-energy and BOM implication. Traverse Tree 3 in the decision-trees file.