20260927-1640-air-hub-low-cost-linux-and-lora-star Evaluate low-cost Air Hub Linux platforms without the industrial and native-CAN constraints, and a proprietary LoRa star for Air Hub LR

• status: completed
• priority: P1
• owner: claude/session-20260927-1640
• createdAt: 2026-09-27 16:40

Description

Owner request (2026-09-27): write the 2026-09-27 platform discussion into the docs, and correct the claim that SSD202D vendor documentation is missing (its datasheet is easy to find).

Discussion inputs: cheapest current configuration (FET3506J-S / FET113i-S at 88 CNY); Ebyte core boards (ECK30 T113-i, ECK41 RK3506G, ECK31 T113-S4, ECK10 MP135); relaxing the device temperature to about −20…+80 °C; dropping the SoC-native CAN requirement (external SPI CAN controller, or the ESP32-C6 TWAI); a planned Rust rewrite of the host software (reopens ARMv5 parts excluded only because of Node.js); candidates RV1106G3, SSD202D, RK3506G2, T113-S3/S4, NUC980, MA35D1; a proprietary single-radio LoRa star as an alternative to the LoRaWAN concentrator on Air Hub LR.

Acceptance criteria:

1. The findings are recorded as evaluation pages with sources and data dates; no Level 1 value changes unless the owner chooses the platform-change option.
2. The SSD202D rejection reason no longer says vendor documentation is missing.
3. bun run docs:lint && bun run docs:build && git diff --check passes.

ActiveForm

Evaluating low-cost Air Hub Linux platforms and a LoRa star topology

Dependencies

• blocked by: (none)
• blocks: (none)

Notes

(none)

• complete: Spec R0.7, design R0.5, guide R0.4, two evaluations, decision, governance rows updated; lint, build and diff check pass.