radio-lab

raspi radio-lab for wifi heatmap

Installation

git clone https://github.com/thenextbilliononline/radio-lab.git
cd radio-labs/scripts
sudo ./create-ap.sh
sudo ./configure-gps.sh

create-ap.sh

Turns onboard wireless module of the Raspberry Pi to an ACCESS POINT.

• SSID: mesh-mapper
• password: password
• Pi ip address 10.0.0.1/24
• Internet available via nat over ethernet port

configure-gps.sh

• Enables and Configures raspberry pi UART port
• Installs GPS software (gpsd with both legacy and python gpsd-clients)
• Activates it on boot with systemd

GPS connection to Raspberry Pi GPIO

GPS	Rasp Pi	GPS
	1 2
	3 4	VCC
	5 6	GND
	6 8	RX
	9 10	TX

apt install python-pip3

GPS Daemon - View: NMEA to JSON

Command: gpspipe -r localhost:2947 | gpsdecode

{
    "class": "TPV",
    "device": "stdin",
    "mode": 3,
    "time": "2018-08-16T04:20:00.000Z",
    "ept": 0.005,
    "lat": 40.7440853,
    "lon": -74.0087865,
    "alt": 14.8,
    "speed": 0.062,
    "climb": 0.0,
}

GPS Daemon - View: Console

Command: cgps -s

┌───────────────────────────────────────────┐
│    Time:       2018-08-16T04:20:00.000Z   │
│    Latitude:   40.7440853 N               │
│    Longitude:  74.0087865 W               │
│    Altitude:   14.8 m                     │
│    Speed:      0.3 kph                    │
│    Status:     3D FIX (8 secs)            │
└───────────────────────────────────────────┘