First use of the Dreevo 3 lite

This page has been updated on the 27/09/2010.

The Dreevo 3 Lite is the exact same device than the Dreevo 3 except that it hasn’t a modem inside. That is why this product is made to be use with a C4-D, when both devices are connected the Dreevo lite uses the modem of the C4-D.
So the combination of those two devices gives you a lot of possibilities.

As the usage of the Dreevo lite is the same than the Dreevo 3, you should read this to know more about the use of this product.

In the following, you will explain how to connect a C4-D and a Dreevo Lite.

Connect a C4-D and a Dreevo lite.

The IBD RS232 cable

The IDB RS232 cable allows the Dreevo3 Lite to communicate with another device using RS232 interface (i.e. the C4D) and also to power up the dreevo from a vehicle power supply.

  1. RS232 connector. To be connected to the C4D black DB9.
  2. Mini USB (right angle) connector. To be connected to the Dreevo3 Lite.
  3. Ground (black wire). To be connected to the C4D black wire/vehicle’s ground.
  4. Shutdown input (yellow wire).
  5. Ignition input (grey wire)
  6. Power (red wire). To be connected to the C4D red wire/vehicle’s Vbat.

Ignition OR Shutdown signals are used to control when the Dreevo 3 Lite is powered from the automotive power supply or running on its own battery.

Notes:

  1. External power supply is used when the Dreevo3 Lite red LED is ON.
  2. For development purposes, DB9 connector can be used with COM 1.
  3. Ignition wire must be connected to access the Dreevo3 Lite internal console.
  4. A DB9 female-female null modem adapter is required to access the Dreevo3 Lite console.

Wiring diagram

The wiring diagram depends of the expected behavior.

a) Common behavior consists to power the Dreevo3 Lite from the vehicle power supply ONLY when ignition is ON (engine started). So, in this case the simplest way is to only use the ignition wire of the IBD cable (grey wire).

Join the IBD and the C4D red wires then connect them to the Vbat (external battery).
Join the IBD and the C4D black wires then connect them to the ground (external battery).
Join the IBD grey wire and the C4D white wire then connect them to the ignition (vehicle).

Note: The IBD yellow wire is unused.

b) Other behavior consists to power the Dreevo3 Lite from the vehicle power supply according to the state of the connected C4D digital output. So, in this case the simplest way is to connect the shutdown wire of the IBD cable (yellow wire) to one of the C4D digital output.

Join the IBD and the C4D red wires then connect them to the Vbat (external battery).
Join the IBD and the C4D black wires then connect them to the ground (external battery).
The IBD yellow wire is connected to one the of C4D digital input.

Notes:
-The IBD grey wire is unused.
-This way requires a user component (SDK) to oversee the selected output.

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