Adafruit 16-Channel Servo Boader & Adafruit Trinket

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W3ST
 
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Adafruit 16-Channel Servo Boader & Adafruit Trinket

Post by W3ST »

Hello,

I have some short questions. Is it possible to wire the "Adafruit Trinket" with the "Adafruit 16-Channel Servo Board"?
If yes, would it be correct to wire Pin #0 -> SDA and Pin #2 -> SCL?

And the other question is. How do I would have to wire a USB-LiPo charger board in to the circuit?
May if I would use a 6V LiPo for the 12 Servos I would like to use.

I just have to check first before I do the order.

Thanks for any help.

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adafruit_support_bill
 
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Re: Adafruit 16-Channel Servo Boader & Adafruit Trinket

Post by adafruit_support_bill »

would it be correct to wire Pin #0 -> SDA and Pin #2 -> SCL?
That is correct
How do I would have to wire a USB-LiPo charger board in to the circuit?
May if I would use a 6V LiPo for the 12 Servos I would like to use.
Our LiPo chargers only work with 3.7v 1S LiPo cells. We do not have a 6v charger.

We do have the PowerBoost 1000 C, which will provide up to 2A of 5v power from a 3.7v cell. But that is not enough power to drive 12 servos.

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W3ST
 
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Re: Adafruit 16-Channel Servo Boader & Adafruit Trinket

Post by W3ST »

okay, thank you for the quick answer.

But I have another question.
When I'm done with the Project maybe I want to add a bluetooth Board to control.
Would it be possible to connect the Board with the Trinket?
Or do I have to take another one right from the beginning?
The requirement is the Board should not be to big and heavy

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adafruit_support_mike
 
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Re: Adafruit 16-Channel Servo Boader & Adafruit Trinket

Post by adafruit_support_mike »

It's possible to connect a Trinket to an EZ-Link through a SoftwareSerial connection, but it's a bit easier to use a Pro Trinket. That uses the same microcontroller as the Arduino Uno, and is only a little larger than the Trinket.

https://www.adafruit.com/products/2000

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W3ST
 
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Re: Adafruit 16-Channel Servo Boader & Adafruit Trinket

Post by W3ST »

Perfect thank you.

There is another question again about the powering.
Is it possible to use 2x Li-ion with 3,7V -> (7,4V) to powering the 16-Channel Servo Board or is that to much for the connected servos?

And would it be possible to charge the 2 Li-ions with the LiPo charger borad?


At the Servo Board I should use a 1200µF capacitor. At home I already have a 2200µF capacitor, could I also use that one or is it to big?

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Re: Adafruit 16-Channel Servo Boader & Adafruit Trinket

Post by adafruit_support_mike »

W3ST wrote:Is it possible to use 2x Li-ion with 3,7V -> (7,4V) to powering the 16-Channel Servo Board or is that to much for the connected servos?
It would be too much for the servos, and you generally want to avoid putting LiPos in series or parallel unless you have a pack that was matched at the factory.

A better option would be to use a single LiPo with a boost converter like the PowerBoost 1000: https://www.adafruit.com/products/2030 You might need more current than the PowerBoost 1000 can put out though. Pololu has a good selection of higher-current boost converters: https://www.pololu.com/category/132/ste ... regulators
W3ST wrote:And would it be possible to charge the 2 Li-ions with the LiPo charger borad?
Again, it's usually better to stick to a single LiPo if you aren't using a pack matched at the factory.
W3ST wrote:At the Servo Board I should use a 1200µF capacitor. At home I already have a 2200µF capacitor, could I also use that one or is it to big?
2200uF will be fine. It's a debounce capacitor, so bigger is better.

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