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Partner Profile: Grinn Global

Website: grinn-global.com Key Contacts: * Robert Otręba (robert.otreba@grinn-global.com) — BD Manager * Łukasz — Legal Signatory * Igor — Engineering Lead (to take over post-NDA execution) Origin: Poland / Global Specialty: Full hardware design, firmware development, and mechanical design services Stage: NDA Signed (Apr 29, 2026 - fully signed on Robert/Andrés sides; final signatory processing)

Strategic Role

Candidate hardware design partner capable of handling the entire hardware, firmware, and mechanical stack for both the Member (Ear-tag) and Leader (Gateway collar) devices.

Engagement model — proposed

  1. COTS-First Gateway Validation: Andrés proposed leveraging Grinn's pre-certified TerraSat NTN device as the hardware foundation for the initial Phase 1 Leader Node. This would allow a faster, lower-cost go-to-market while strictly maintaining the Tower-less architecture.
  2. Custom Ear-tag Design: Transitioning to custom hardware design and engineering for the massive-scale wearable (Member ear-tag) under Grinn's full-stack development capability.

Meeting log

Embedded World Nuremberg 2026 — Introductory Meeting

Attendees: Juan Andrés Antoniuk (JAAB), Robert Otręba (Grinn)

Key Discussion Points: - Discussed the direct-to-satellite cattle tracking architecture. - Grinn confirmed they are fully capable of handling the end-to-end hardware and firmware design, including mechanical design and certification. - Reviewed preliminary cost targets and validated target unit prices.

Technical & Commercial Proposal (Igor Rutkowski — 2026-05-18)

Following review of the Strategic Brief, Igor's engineering team proposed a concrete COTS stack and deployment strategy: * Hardware Stack: * LoRa + MCU: RAK3172 (STM32WLE5 SoC), highly cost-effective single-chip LoRa module. * GNSS: Quectel LC76G module with AVX 9002137 antenna. * Gateways: RAK3172 (LoRa) + Quectel/Murata (NTN backhaul). * Power: Solar + battery (recommends removing the battery fuel gauge IC for Phase 1 to reduce BOM/complexity). * Mesh Protocol: * Strongly advised against Meshtastic due to GPL copyleft constraints. * Recommended MeshCore (MIT licensed, natively supports RAK3172, supports up to 64 hops to bypass body shadowing). * Deployment: * Validate hardware using a ~100-device pilot batch (rather than 5,000) to confirm power budgets, solar harvesting, and mesh convergence in the field before tooling for scale. * Proposed Role: Grinn takes full ownership of PCBA hardware design, low-power firmware development, and mechanical enclosure design.

Action items

# Action Owner Status
1 Finalize MNDA execution (Łukasz signature + Igor transition) Grinn Complete (Igor took over and submitted engineering proposal)
2 Schedule follow-up call with Igor/Robert to align on COTS pilot scope Juan Open (Planned for week of May 19)
3 Review and approve RAK3172 + MeshCore (ZephCore) baseline Juan Complete (Accepted via ADR 0009)