@ robotmaker : I just want to make sure I have it right. I can use, say pins D3, and D4. Then " add control" PWM to those 2 pins, and connect D3 to ENA and D4 to ENB. Do I have it right? Again, thank you for your response, much appreciated. Lloyd

what is D3 AND D4 on EZB or on h-bridge, and do you have model # for specs

what is D3 AND D4 on EZB or on h-bridge, and do you have model # for specs

bought another really good board for under $33 a nd has wifi and bluetooth,doesnt say it ,but when i got the board it had a second board attached to it with itx poer supply,and wifi and bluetooth modules it is 1.2 ghz with 1 gig ram,it does have on the itx board pcia adaper and memory card reader to add memory card for operatring system ,witch is very good,itx board can easy remove and use it like it is too it is good for some robot projects only needing EZB AND SENSORS ,MOTORS AND SO ON using it for my ROOMBA project,also has video output for tv monitor

1.2 ghx itx board with WIFI

@robotmaker: Have you used the EZ-B??????? There are 20 digital I/O pins on the EZ-B. I watched DJ's tutorial video on PWM. It showed four wires connected to ENA, +5, +5, ENB. DJ responded to my eariler question concerning the L289N, and said that only one pin ( ENA ) would control both "enable" pins. ?????????????????????????

yes,but i need to know the model of your board,each h-bridge is different and different inputs

@robotmaker: I couldn't find any identifing numbers or markings on the motor driver, so I've attached some pics below. Thanks again.

ok hook is IN1 is pwm digital pin,IN2 is DIR digital pin,and EN A IS GND second motor its the same IN4 is PWM digital pin,IN3 is DIR digital pin ,ENB is GND

if you want good control ENA and ENB can be tied together and use a digital to turn if off on over current or a problem or connect to a simple current comparator circuit both protect the chip from a current overload using the digital pin will need a analog input for a current monitor where current comparator doesnt need a digital pin or analog pin,its a 8 pin cheap chip and few resistors,plus a current monitor board on ebay about $4 ARC SETUP need 2 PWM controls ,pwm left set D15 IN CONFIG in pwm right set D17 in cofig then 4 wire motor control, left trig A at D15,LEFT trigB at D16,RIGHT trigA at D17 and right trigB at D18

ON WIRE FROM BOARD IN1 is D15,IN2 is D16,IN4 is D17,IN3 is D18 ARC file is attached PWM-HBRIDGE.EZB

Hi robotmaker, I ordered the wrong motherboard. Can you tell me if this one will work for Leaf

DELL OPTIPLEX FX160 USFF INTEL ATOM 1.6GHZ 512MB 533MHZ TK7TF 0TK7TF MOTHERBOARD

Dell TK7TF Optiplex FX 160 USFF Series Motherboard. Dell meets the current and future demands of high performance, power embedded computing, making it ideal for communications, transaction terminal, interactive client, industrial automation applications as well as for standard home use.

Manufacturer: Dell Part Numbers: TK7TF 0TK7TF CN0TK7TF CN-0TK7TF PI671R/EAGLE 92NWV Compatible Models: Dell Optiplex FX 160 USFF Series

Specifications:

4 x USB Ports 2 x PS2 Ports RJ-45 (LAN) VGA Port DVI Port Serial port

This Motherboard also comes with Intel 1.6GHz /512/533 Processor

Thanks BC