Problem to control servos with MegaPi


#1

Hello,

I am using the Makeblock MegaPi control card and want to work 6 servo motors(SG90) same time but it’s just working 4 servos. Only working A6, A7, A8 and A9. Is the card broken or the problem about the voltage source?

Thanks for any help.


#2

Wireless communication interface – for adding Bluetooth module or 2.4G module (require corresponding communication module)
Port 1 – motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module)
Port2 –motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module)
Port3 – motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module)
Port4 – motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module)
Port5 – RJ25 communication module interface for adding Bluetooth or WIFI which requires RJ25 (require keyset for MegaPi’s transferring to RJ25)
Port6 – RJ25 dual-digital/analog interface for adding sensors or input/output RJ25 modules (require keyset for MegaPi’s transferring to RJ25)
Port7– RJ25 dual-digital/analog interface for adding sensors or input/output RJ25 modules (require keyset for MegaPi’s transferring to RJ25)
Port8– RJ25 dual-digital/analog interface for adding sensors or input/output RJ25 modules (require keyset for MegaPi’s transferring to RJ25)

With each RJ25 adapter, you can control two SG90 motors


#3

could you explain more, please?


#4

rj25
THe RJ25 adapter has two slots for running SG90 servos. They can connect to ports 5-8.


#5

The megapi already has builtin a large number of servo control pins see http://learn.makeblock.com/en/megapi/ so it doesn’t need a breakout board to be plugged into a RJ25 port


#6

Hi,
Here is the details about Maker’s platform.
Please have a check.
http://docs.makeblock.com/diy-platform/en/electronic-modules/motors/9g-micro-servo.html
Thanks.


#7

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