Backitude is an Android client that is designed to capture the location
of your device at configurable time intervals or whenever a position is served
up by the operating system.  You can grab it from https://play.google.com/store/apps/details?id=gaugler.backitude

To configure Backitude to work with the custom server, you need to
set the following parameters in the custom server settings:

Server URL: http://<your server>/requests.php
Request Type: POST
Successful Response Codes: 200,201
Authentication options: Credentials in POST parameters
User Name: What ever you choose
Password: What ever you choose
Custom Field 1: upload
Custom Field 2: backitude

User Name: u
Password: p
Latitude: lat
Longitude: long
Accuracy: accuracy
Speed: speed
Altitude: alt
Direction Bearing: angle
Location Timestamp: <this can be deleted>
Request Timestamp: do
Timezone Offset: <this can be deleted>
Custom Field 1: a
Custom Field 2: db

mysql needs to be configured by running the trackme.sql sql script file.

config.php needs to be configured.  

Within config.php:

 - Use trackme as the database name.
 - Initially set allow_registration = 1 so Backitude can register and your user/pass is automatically created