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PRO
Synthiam
#1  

[feature] You will need 4 servo Cables

VM: Connect this directly to the Positive terminal of your battery

Servo Cable 1 AIN1: White VCC: Red (+5) GND: Black (gnd)

Servo Cable 2 AIN2: White PWMA: Red (+5) GND: Black (gnd)

Servo Cable 3 BIN1: White STBY: Red (+5) GND: Black (gnd)

Servo Cable 4 BIN2: White PWMB: Red (+5) *You do not neet to connect the 4th servo wire GND to anything because there are only 3 gnds on the motor controller board. Just snip the wire. [/feature]

Easiest to connect PWM to +5. However, if you want to vary speed then connect the PWM to digital ports of the EZ-B. Then configure those ports to be used as Servos. The higher the servo, the more PWM will be sent which results in faster speed. Slow speed, lower servo.

There ya go! You're golden:D

United Kingdom
#2  

Err I'm sure I posted a question on monitoring motor stall currents with an ADC port??

Its gone and the answer

PRO
Synthiam
#3  

Yeah, server crash

Connect one of the ADC channels to the GND closest to the HBridge. When the adc reaches around 2 or 3 points, then a stall has occured:)

United Kingdom
#4  

Hi DJ thanks

Shame about your HD stress

#5  

Hi every one, Is it optional to connect the PWM pins to +5/ digital ports or would the driver fai lto work if they stay disconnected? Nick

PRO
Synthiam
#6  

If the PWM port is connected to constant +5, then it will be full speed. If it is connected to a digital port, then you may turn it on and off -OR- you may control the speed by setting that port as a Servo. The higher the servo, the faster the motor.

#7  

DJ, Here's the wiring schematic I gleemed from your video, can you confirm it is correct?

Breakout board has 4, 3 conductor connectors

Breakout Connector Color Code notes

PWMA connects to PWMB on breakout AIN2 #1 white Hbridge + 5v #1 red GND #1 Black

AIN1 #2 white VM #2 red GND #2 Black

BIN1 #3 white STBY #3 red GND #3 Black

BIN2 #4 white PWMB #4 red GND #4 Black

I guess from dialog above that this connection is for constant speed, how would it change for variable speed?

PRO
Synthiam
#8  

The post under the video, i wrote this..

Quote:

Motor Trigger connects to EZ-B Motor Out connects to DC Motor Motor +5 is the power to the motor (can be higher voltage, check datasheet) HBridge +5 is the power to the chip (needs to be +5)

Easiest to connect PWM to +5. However, if you want to vary speed then connect the PWM to digital ports of the EZ-B. Then configure those ports to be used as Servos. The higher the servo, the more PWM will be sent which results in faster speed. Slow speed, lower servo.

And if you compare that against this image:

User-inserted image

And what you wrote is perfect:) So you got it sir! Now only notice that the Motor +5 should probably come from your battery directly. The Motor +5 is labelled VM. If you power the motor off the EZ-B, it may brown-out (depends on the load).

How many volts is your battery? How many volts does the motor take? Depends on your application if you can power the motor directly from your battery. Most cases you can. I always do because my batteries are either 6v or 7.4v

[feature] You will need 4 servo Cables

VM: Connect this directly to the Positive terminal of your battery

Servo Cable 1 AIN1: White VCC: Red (+5) GND: Black (gnd)

Servo Cable 2 AIN2: White PWMA: Red (+5) GND: Black (gnd)

Servo Cable 3 BIN1: White STBY: Red (+5) GND: Black (gnd)

Servo Cable 4 BIN2: White PWMB: Red (+5) *You do not neet to connect the 4th servo wire GND to anything because there are only 3 gnds on the motor controller board. Just snip the wire. [/feature]