esp-idf-GPS-Repeater

Transfer GPS NMEA messages over Wifi/Bluetooth

Background

I live in an apartment.
GPS signal does not reach my room.
I put my ESP32 and GPS receiver by the window and forward NMEA messages over WiFi.

Software requirements

esp-idf v4.4/v5.x

Hardware requirements

GPS module like NEO-6M

Wireing to GPS module

GPS		ESP32
VCC	--	3.3V
GND	--	GND
TXD	--	Any Pin

Installation

git clone https://github.com/nopnop2002/esp-idf-GPS-Repeater
cd esp-idf-GPS-Repeater
idf.py set-target esp32
idf.py menuconfig
idf.py flash

Configure

You can configure UART GPIO port and transfer protocol using menuconfig.

Transfer using TCP Socket

Select WiFi mode.

You can use tcp.py as receiver.
python ./tcp.py

Transfer using UDP Broadcast

Select WiFi mode.

You can use udp.py as receiver.
python ./udp.py

Transfer using Bluetooth SPP

You can use iPhone/Android as receiver.

GPS Server for u-center

u-center is a very powerful NMEA message analysis tool.
You can use ESP32 as u-center's GPS Server.
ESP32 acts as a TCP Server.
Build the firmware using TCP socket.

Start u-center and connect to ESP32.
You can use mDNS host name as IP.
Default port is 5000.

tcp://esp32-server.local:5000

GPS Server for Bluetooth GPS

Bluetooth GPS is Android Application.
You can download from here.
ESP32 acts as a SPP Acceptor.
Build the firmware using Bluetooth SPP.

1.Pair with ESP_SPP_ACCEPTOR.
2.Open application.
3.CONNECT.

References

Repository with UI is here.