16-Channel 12-bit PWM/Servo Driver ?

[cwc1885]

Adafruit 16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685

We just purchased 2 16-Channel 12-bit PWM/Servo Drivers.

What size of capacitor is used (shown in the photo?)
http://www.adafruit.com/index.php?main_ ... ge&pID=815

Also: How are two of them connected to control more that 16 servos?

Thanks

[adafruit_support_bill]

We should have a full tutorial up shortly. In the mean-time:
The capacitor is not essential in most cases. If you see erratic behavior when moving multiple servos at once, you can add some capacitance. Something like a 470-1000uF @6v or more is a good value to start with.

To connect 2 or more in series, just chain the 6-pins one the end of the board to the next board. A 6-pin cable like this makes it easy. Use a bit of solder to bridge the address jumpers on the upper right of the board. For 2 boards, just bridge A0 on the second board. Its I2C address will then be 0x41.

[cwc1885]

We should have a full tutorial up shortly. In the mean-time:
The capacitor is not essential in most cases. If you see erratic behavior when moving multiple servos at once, you can add some capacitance. Something like a 470-1000uF @6v or more is a good value to start with.

To connect 2 or more in series, just chain the 6-pins one the end of the board to the next board. A 6-pin cable like this makes it easy. Use a bit of solder to bridge the address jumpers on the upper right of the board. For 2 boards, just bridge A0 on the second board. Its I2C address will then be 0x41.

thank you for the help.
we're looking forward to the tutorial