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VrBrain 4.5and External Led

Posted by Marc LE BRET on October 22, 2013 at 10:30pm

Hello,

I received an APM Led Buzzer card (from Charles Lakins).APM 2x LED / Buzzer Module

Led and Buzzer have + on signal pin of the APM and - on the common - bar.

After searching VrBrain 4.5 documentation and Barone Rosso Forum, I got the right wiring data in order to use that module.

I had to reverse polarity of the module by unsoldering and reversing Leds and Buzzer on the card. Then I changed the wiring on the plugs.

LED_Setting in the APM param list is 11

Here is it on board

Thanks,

Marc

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Comments

Marc LE BRET October 25, 2013 at 7:19pm

Hi Roberto,

Leds and Buzzer are OK now. (LED_setting is 11)

On my module, - was common and + was on signal line. I unsoldered the leds and Buzzer , reversed them and changed the position of the common line from - to + on the plug.

I have also an i2c led ring from led robot (Use it with multiwii). Could be interesting to use it with VrBrain.

Thanks,

Marc
Roberto Navoni October 25, 2013 at 11:22am

Hi Marc,

thanks for your suggestions :) We are working to improve the led signal ,in last revision of code that support Nuttx OS , too will be available a special module that control RGB LED by I2C Bus ... now on VRBrain is available 3 led + 1 buffer .

For more info check here :

http://vrbrain.wordpress.com/assembly-instructions/

the center il a +12volt - lipo battery the up signal drive by uln2003 and set GND to led

Best

Roberto
Marc LE BRET October 25, 2013 at 5:45am

Problem to be solved soon. I have to modify my Led Card in order to use battery 12 volt + as common plug and - sides of Leds and Buzzer on signal side of the Vr Brain led and buzzer plugs.

On my led card, - is common and + sides of leds and buzzer are on signal plug (APM 2 Wiring)

Marc
Marc LE BRET October 25, 2013 at 5:20am

Hello,

I did some research on the Barone Rosso forum. I find some interesting leads to follow.

First: You need to plug + and - 12 volt battery on one of the Led plugs. I did that and activated Battery monitor and have a good reading of the voltage in mission planner.

I had a try with led setting 123 (Barone Rosso Forum) but I'm not sure it is valid for VrBrain 4.5 and firmware 3.1.5. In fact I have no led lighting (leds are OK if I apply 12 volts at the led plug).

Thanks for your help,

Marc