Recommended hardware:

Carry with you: WIO Tracker L1 (nrf52)

Mount in Vehicle: Wisblock 4631 (nrf52)

Mount in attic/roofline: Heltec V4 (ESP32-S3)

Solar Relay: Wisblock 4631 (nrf52)

Service Devices: Heltec V4 (ESP32-S3)

Documentation and Research

Lora Solar Relay Parts List - Amazon List where we maintain parts that we use and recommend. 

Technical Feasibility and Implementation Strategy for Autonomous Solar Meshtastic Nodes: A Comprehensive Engineering Analysis of the RAK WisBlock Architecture

Lora Moxon Antenna Build Doc