Terminal Hardware

  • TTGO T-Beam 433 MHz v0.7 or v1.1

  • longer 433 MHz antenna with SMA male connector

  • 16.9 mm long tiger tail wire soldered to the female SMA socket

  • 5 V, 3 A USB charge adapter with appropriate microUSB or USB‑C cable

  • Panasonic NCR18650B Li-ion cell, or quality equivalent

  • glue gun to stick the GPS antenna to the cell holder

  • SH1106 1.3” I²C (4‑pin) OLED display (slightly larger than the usual 0.8” displays often sold with the TTGO T-Beam)

  • enclosure