An ESP32/ePaper based handheld GPS displaying the Maidenhead Coordinates instead of WGS84. Additionally, it displays time (UTC), altitude, speed and course. It was built for a ham radio activity on board of a hot air balloon in 2021 (HB9HC/AM).
- TTGO T5 - ESP32 with 2.13" ePaper: http://www.lilygo.cn/prod_view.aspx?TypeId=50031&Id=1393
- GPS Module: VK2828U7G5LF
- LiPo Battery 3.7V/500mAh (502540)
| TTGO T5 | GPS |
|---|---|
| 3V3 | V, E |
| GND | G |
| 25 | T |
| 26 | R |
3D-Printed, remix/based on https://www.thingiverse.com/thing:4818087
- Platform.IO https://platformio.org/
- Microsoft Visual Studio Code
adafruit/Adafruit GFX Library@^1.10.10
adafruit/Adafruit BusIO@^1.9.1
zinggjm/GxEPD2@^1.3.7
mikalhart/TinyGPSPlus@^1.0.2
plerup/EspSoftwareSerial@^6.13.0
https://github.com/hb9tvk/maidenhead/archive/refs/heads/master.zip