The EZ-B has 24 digital ports, so you can connect 24 servos. There is a way to daisy chain some servos but I don't have any experience doing that. If your going to use 17, then your ok and will have ports left over for other things if you wanted.

The EZ-B v4 boasts 200mhz of 32-bit Processors (ARM Cortex M3 & Microchip PIC32) , 5 Volt Tolerant I/O, Energy Efficient Digital Switching Power Supply, Wi-Fi Connectivity with security, Embedded Web Server, Amplified Digital Audio with Speaker, 3 i2c ports, 3 x UARTs, 24 Multi-use Servo/Digital/Serial ports, 73 Servos (Dynamixel & PWM), 8 Analog ports, and Integrated Video... All packed in a mini 2.1" x 2.2" size!

Further each digital port can handle 5amp max, total 20amp at once before the main fuse blows...

Dang! I was reading and reading but did not see the "24 Multi-use Servo....."

Thanks for pointing that out! Thanks both!

I have been reading me up on this subject now for 1 month. My approach now will to buy the shell from Alibaba and by luck I found an article about EZ.

Wish me luck:)

Thanks for advice RR!

Next question: should I buy my robot kit complete with servos or not.

You have to be careful when buying servos for different applications (robots). The servos come in different sizes and shapes. You might want to purchase the servos that the kit was designed to use.

The thing to know/remember is that the digital ports are unregulated. if you are going to power your bot with 7.2Volts, make sure your servos can handle 7.2 volts, or regulate the power off of the ports between the servos and the ez-b.

@RR, @Leaderone

The ez-bv4 can handle 5A continuous current draw total, up to 20A spiked current. Servos do not actually draw all that much current until they are stalled or a number of them are being used at the exact same time. In most applications of 24 servos all the servos are not being moved at the same time.