Asked
Resolved by Jeremie!
I've used the L698 motor controller with IoTiny for a few projects, but its form factor is a bit big and has a somewhat awkward design.
As I continue to be a beginner, are there alternatives to the hbridge that are compatible with the IoTiny? Perhaps something like an MX1508 http://www.techmonkeybusiness.com/using-the-mx1508-brushed-dc-motor-driver-with-an-arduino.html
Or some other brushed dc controller with a smaller form factor?
Thanks.
Related Hardware EZ-B IoTiny
I' would rather focus on the specs versus if is visually apelative or not.
As beginner you should rely as much as possible on ARC's supported hardware, unless you are familiar with scripting and / or ARC's custom movement control.
You missed the most important detail: the motors specs, if you plan to use one or two motors.
looking to the existent information the IN1 is forward PWM, IN2 is backward PWM. You have speed control, but is not compatible with ARC HBridge control.
I do prefer using 360degree servos as motors as they easily work with the movement panel.
However, I was looking at SMARS open robot project (http://www.smarsfan.com/) that uses an Arduino, two 3-6v small motors, motor shield and other electronics. It looked like fun. So, I wanted to use an IoTiny instead, but the Hbridge was too big for the 3d-printed body that it uses. I'm still new to Fusion 360 so modifying the body to accommodate the bigger hbridge form factor isn't in the cards.
I'll stick with servos for now.
Thanks.
Given the size of the iotiny, i think an lm hbridge would fit next to it. If all else fails, a bit of duct tape never hurts
And you can still find room to mount the camera on the front. A robot without a camera isn't a robot
I use the L298N Motor Drive Controller Board Module Dual H Bridge DC Stepper on Amazon - it was only 12.99
Just your luck, they are on sale at the moment! https://www.sparkfun.com/products/14451
I finally got the sparkfun motor controller you suggested. Would you happen to know how to hook it up?
Thanks.
Scott
https://learn.sparkfun.com/tutorials/tb6612fng-hookup-guide/all
I've looked at the hbridge tutorial and the sparkfun motor controller and tried connecting it to the IoTiny, without success.
My read of the both diagrams is as follows:
Sparkfun -------- IoTiny (SF - Left side with pins)
PWMA ----- ENA
AIN2 ------ IN2
AIN1 ----------IN1
STBY ------------------
BIN1 ----------IN3
BIN2 ----------IN4
PWMB -------ENB
GND -------- Motor 2 GND
Sparkfun -------- IoTiny (SF - Right side with pins)
VC --------------
VCC------------ VCC (From Sf to Iotiny)
GND ---------- GND (From Sf to Iotiny)
A01------------ Motor 1 in
A02
B02------------ Motor 2 in
B01
GND -----------Motor 2GND
As for the HBridge with PMW Module settings
LTrigger A ----- D0
Left Trigger B --D01
LPWM _____ D4
RTrigger 8 ---- D02
L Trigger B ----D03
RPWM -------- D5
What do you think? Where am I going wrong?
AIN2 ------ d0
AIN1 ---------- d1
BIN1 ---------- d3
BIN2 ---------- d2
PWMB ------- d5
I used with Arc, an IO tiny, Ez-robot battery, movement panels, the H-Bridge PWM control with a tank chassis works well, forward, backward, left, right
I
use the L298N Motor Drive Controller Board Module Dual H Bridge DC Stepper
here is my video:
https://synthiam.com/Community/Robots/H-Bridge-PWM-tank-18987
here is a pic
IN1 Input 1 for Motor A
IN2 Input 2 for Motor A
IN3 Input 3 for Motor B
IN4 Input 4 for Motor B
EN1 Enable line for Motor A
EN2 Enable Line for Motor B
EzAng
If you are powering the IotTiny with more than 5V you can't connect the Iotiny VIN to the H-Bridge VCC otherwise your bridge will become a decorative accessory.
To be on the safe side:
VCC = IotTiny 3.3 V
VM = IotTiny VIN 5v-12v (max)
The two N20 motors work fine with my Hbridge, but I cannot get the Sparkfun motor driver to work.
My goal was to find a motor controller with a form factor smaller than the L298 motor controller that would be compatible with IoTiny. There are lots of projects that use a small Arduino and a small motor controller/shield such as SMARS. Perhaps, I'll stick with bigger projects that can incorporate larger motor controllers or just use servos where I can.
I'm sure i'll be back with more questions.
Thank you.
.