Hardware

LoRa ICs and Modules

• Semtech LoRa products

• Semtech SX1278

• HopeRF LoRa modules

• HopeRF RFM98W

• G-NiceRF Lora1278F30 1 watt module

Tracker 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

I-Gate Hardware

• Either:

  • TTGO LORA32 433 MHz v2 (U.FL or SMA female RF socket), or

  • maybe Heltec ESP32 LoRa 433 MHz v2 (U.FL female RF socket); subject to satisfactory receiver testing

• 70 cm amateur radio colinear groundplane antenna with coaxial cable and connectors

• 16.9 mm long tiger tail wire soldered to the RF socket

• 5 V, 1 A USB power supply with appropriate microUSB or USB‑C cable

• enclosure

Caution

DO NOT USE Heltec ESP32 LoRa 433 MHz v1 as it is as deaf as a post!