Yes! The additional power jumper must be connected when using the 5.0 MP
camera module from e-Con Systems. It looks like this information is missing
from the latest version of e-Con's hardware manual. I'll find the details
for making this connection, and forward them to you.
On Sun, Apr 29, 2012 at 9:53 PM, Daniel Turner <danieltturner@...:
> Hello everyone,
> I've recently started working on a project that uses the Gumstix
> Overo Fire. I'm building a tiny ROV (5"x5"x1").
> To give you some background, I've been working with PICs for years,
> and no stranger to a soldering iron and have even designed and built
> quite a few PCBs.
> Most of my embedded dev work has been via PIC-C by CCS.
> And, of course, I'm having a bit of a problem. Two in fact...
> I've had a ROV chassis 3D printed, I've got a Pololu serial motor
> controller that drives two tiny gear head motors, all controlled by an
> Overo Fire.
> And the amazing thing, it works! I'm controlling the ROV over WiFi via
> a python GUI on a laptop that talks to a python app running on the
> However, when I drive the motors from 0% to 100% the Overo reboots.
> I'm trying to determine if the Overo is rebooting due to a low voltage
> condition or RFI.
> Does the Overo have any built in method of monitoring battery voltage?
> I intend on adding a PCB to monitor system voltages (both the motor
> voltage and the logic voltage), but that is a few weeks away.
> I'm also having a problem with an E-Con Systems 5MP camera. I've been
> in touch with the Road Narrows tech support and they are telling me
> either my cable is bad, the camera is bad, or the overo is bad. I've
> tried another cable and I'm still getting an I2C error when I try to
> insmod the driver. The module, overo, and both cables are brand new.
> I'm inclined to believe this is a user error.
> The camera module has what I was told is a flash power connector, I've
> tried to confirm the function of this 2 pin connector on the module
> but have been unable to do so. I'm wondering if it is actually an
> overall power connector.
> Does anyone know if this connector has to be connected for the camera
> to work? I'm pretty sure I've seen video without it connected, but
> that may have been for an older version of the board (such as the
> 3.2MP version).
> Sorry for the rambling, its late.
> Any input on either subject is welcome.
> I should mention, I don't have any high frequency monitoring tools
> with which to monitor the Overo's supply voltage. I am powering it
> from 6 AA cells @ ~9v.
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