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Tchang Dd1-1 Tank Track Chassis

Hi everyone .....
Is anyone familiar with how to connect the 2.5 Amp Motor Controller to the TCHANG DD1-1 Tank Track Chassis? The only paperwork I received with the DD1-1 is basically a description of the chassis. I appreciate it. Thanks you.

Dave

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#1  
Send some pictures of what you have. Including a close up of your controller board. I'm using the tank chassis and H-bridge controller I got from this site but I'm assuming they are similar. This H-bridge uses pulse width modulation to control the speed. In the ARC I use the HBridg Movement control and the PWM slider control. There appears to be a bug though where when you open the project, the PWM slider can be half way up but before the movement control will work, the PWM has to be moved to some degree.

Bill
#2  
Bill,
Thank you for responding, sorry it took a while to get the pictures. I tried to capture them with some detail. I appreciate any help you might give. Thanks again - Dave



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#3  
Hello chi1davey, if you take an other look at the paper comming with the tank you will se it's pretty clear how to connect the EZ to this unit. No need for the external driver, you connect the 0V and Vcc from EZ to this and use the outputs of the EZ for 1B and 1A. Use the direct digital output control. Naturally, you have to connect both sides because they are independant so, to control this you will have 4 outputs from the EZ. It's functionning for me...
#4  
Hi,

Please, I bought one Tchang Dd1-1 Tank Track Chassis but I don't receive a manual, could you help me with simple questions?
I would like to make it works with an arduino uno board.
Questions:
- the VCC pin is 5 Volts, correct?
- the 1B and 1A pins are the engine directions (back/forward)? Could I connect Arduino 5V output directly?

Thanks for any help.
Argentina
#5  
First: i want to apologize for my awful english, hope you can understand me no matter how many verbs conjugated wrong or how many word i misspelled. (Spanish is my mother language).
Second: Sorry for posting in this forum, i don't have any ez-robot board or anything, i'm an Arduino user, but i was searching info about the TChang connection and i found this forum and, once i figured out how to connect the TChang i must share this with the internet community.

The TChang DD1-1 has two half-H Bridge integrated (one in each side), so you don't need a Motor Shield or H-Bridges (like the L293 or L298). You can connect it directly to the Arduino or any arduino-like microcontroller board.


The basic connection is very simple:
TCHANG Arduino/Board
GND GND
VCC 5V
IB Digital Pin (Forward)*
IA Digital Pin (Backward)*
Speed Optional**


*[/b I asume the yellow motor side is the rear
[b]**
I think the Speed Pin is only for control. This pin shows the motor encoder data (amount of steps). I don't test it yet, but i think it can be read with a digitalRead.


To move the TChang you must:
turn on the digital pin for the IB
turn off the digital pin for the IA
or vice-versa, depending of the movement you want to do.

Hope this help somebody.
Argentina
#7  
luistavares,
you welcome (de nada), if you need an example for arduino, ask me.
#8  
Sorry, but just one more question.

what kind of battery do you suggest?

Thanks in advance.
Argentina
#9  
For the moment i use a 9v 0.5A transformer to perform the tests, but i bought 8 AA 1.2V 2000mAh rechargeable Batteries Sanyo Eneloop on MercadoLibre (the eBay of Argentina) and they arrive in 5 or 7 days. If you put the battery pack in serial configuration generates 9.6V 2000mAh (The Arduino recommended power is about 9V to 12V, 6V is the minimum requirement). If you can wait, on Thursday February 6 or sooner i can share with you my experience with the batteries, duration of the charge, etc.

regards.
Argentina
#11  
Well, i had some problems connecting the Tchang's motors directly to the arduino board, it overheat and restarts. So, i separate the motors Vcc and Gnd and connect it directly to the batteries (6 x 1.2V 2000mah Sanyo Eneloop) and use a 9v Duracell battery to power the board. It works very well, separating the power source prevents the overheating and the restarts.
#12  
Hi,

So you use 6 x1.2V 2000mah for the motors e and a 9V battery for the arduino board.
And I presume you connect both GND pins, correct?
#13  
Could I get a sketch you used for this?