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Immersion RC LapRF Operator's Manual

Personal timing system
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LapRF Personal Timing System  
Operator's Manual 
 
Rev 1.2 - August 2017 
 
 
 

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Summary of Contents for Immersion RC LapRF

  • Page 1         LapRF Personal Timing System   Operator's Manual    Rev 1.2 - August 2017       ...

  • Page 2: Specifications

    Interface    Ports  Bluetooth Wireless, and USB Wired  Protocol  LapRF Comms Protocol (available upon request for developers)  PC Software  LiveTime scoring engine (Beta 2.8.1, Available)    WARNING: To avoid problems with charging the 18650 battery via USB, be extremely  careful with battery polarity when inserting the cell. The spring terminal must be ...
  • Page 3 All that is required to use the LapRF in a race is to program the band, and channel that each pilot will  use, place the timer in the start/finish gate, and go fly! ​ N o transponders required​ .  ...

  • Page 4: Getting Started

    Take note that despite the fact that there’s a ‘bind’ button on the bottom, and the LapRF is a  Bluetooth device, you do not need to pair it with your phone or tablet. The LapRF won’t show up as a ...
  • Page 5     Configuring the Bands/Channels  Once the LapRF is connected, click on the ‘LapRF Setup’ icon and configure your bands and channels.   The switch on the left enables/disables each pilot slot, be sure to disable unused slots for maximum  accuracy.  ...

  • Page 6: Battery Charging

        Battery Charging  The internal 18650 li-ion battery may be charged by simply connecting the puck to a USB power  source using a standard micro-B cable.  The maximum charge current is approx. 800mA, which results in a charge time of a little more than 3  hours.  ...
  • Page 7 Note: When a timing system is not connected, touching the large pilot number on the left side of the screen  will create a manual time, and can be used to evaluate the app.   The color if the ‘Start Race’ button currently indicates a valid connection to the lapRF. Red for no  connection, Green for a good connection.  ...
  • Page 8   LapRF Setup  The lapRF setup page is where the number of active pilots is set, plus the band and channel that each  pilot is using.   In addition, the power level used for the race (all pilots should ideally use the same vTx power) is set ...
  • Page 9 The Race Setup page is where miscellaneous race settings/preferences are configured.     Select Timing System  Click this to select the LapRF. If the device doesn’t appear in the list, ensure that bluetooth is enabled,  and that no other mobile device is using it (even in the background).   Race Start Delay ...
  • Page 10 The diagnostics page shouldn’t normally be required, but can be a useful tool during debugging.   The RSSI level of each configured pilot slot is shown. Power on video transmitters and walk them  through the gate to ensure correct configuration of the lapRF, and the video transmitter itself.    ...

  • Page 11: Android Application

    Total, Best, Avg, and number of laps.   The fastest lap per pilot is shown highlighted in green.  The status of the connection to the LapRF is also shown, along with the Bluetooth signal strength  (RSSI) and the battery voltage.  ...
  • Page 12 When first running the application, or when selecting ‘Select Device’ from the context menu, the list  of all detected LapRF devices is presented.   Note: If your device does not appear here, ensure that Bluetooth is enabled, and that no other mobile device  is using the connection to the LapRF, even in the background.      ...
  • Page 13 LapRF Setup  Before starting a race, the 5.8GHz band and channel of each pilot must be provided.   In the LapRF setup screen enable pilots, and then click on the frequency value to display the  band/channel picker.   Select also the race transmitter power in the drop-down to the right.  ...
  • Page 14         General Settings  The general settings page enables names to be entered for each of the pilots, along with the various  race modes.               14   ...
  • Page 15 The diagnostics page shouldn’t normally be required, but can be a useful tool during debugging.   The RSSI level of each configured pilot slot is shown. Power on video transmitters and walk them  through the gate to ensure correct configuration of the lapRF, and the video transmitter itself.    ...
  • Page 16     Placement  The lapRF’s integrated patch antenna forms a beam which emits from the top of the product.   Ideal placement is in the center of the gate, but that does expose it to strikes from low-flying (high  speed) racers.  ...
  • Page 17 A solution that works well when other parts of the track get close to the start/finish gate is to place  the LapRF at 45 degrees on one side of the gate.  This has the advantage of making it easier to protect the timer from quad-strikes also. ...
  • Page 18     Bands, Channels, and Frequencies  The applications which support the lapRF define the bands and channels that are available for a race.   All of the commonly used bands are present.    1  2  3  4  5  6  7  8 ...
  • Page 19 When disassembling the case, a small plastic ‘blanking plate’ may be removed after opening the case  of the LapRF, to open up the hole through which to secure the SMA connector.   Do not try to remove this with a knife from the outside of the box!, the part slides out easily when the box is ...

  • Page 20: Firmware Update

    Press the ​ F lash Firmware ​ b utton, and point to the firmware file downloaded from the  ImmersionRC website ​ p roduct page​ for the LapRF.    Battery Charging  While charging, the ‘Charge’ LED under the puck acts as a 4 level battery gauge.  ...
  • Page 21     Indicators, and LED Colors  The two RGB LEDs on the top of the unit will change color to indicate the pilot slot of the last pilot  that crossed the gate.   These colors are:  Slot 1  Red  Slot 2  Yellow ...
  • Page 22 Firstly, these values are generally ok at their default settings. The ‘robustness’ of the hardware and  software used in the LapRF results in a high tolerance to settings which are not hand-tuned.   If you really want to understand more about how to tweak this values (for those of you who get a kick ...
  • Page 23 800​ appears to be the magic value for most cases. This was what we used for the multiGP IO event  for all 8 LapRF 8-Way trackers, even the one pointing at the gate which was hovering 12 feet above  the ground.  ...

  • Page 24: Troubleshooting

    Problem​ : My LapRF doesn’t appear in the list of devices  Solution​ : First thing to check is that another device is not currently connected to the LapRF.  Another phone (iOS or Android), tablet, etc. For both iOS and Android ensure that the app is well ...

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