HELP CHINESE TO ARDUINO UNO

Development Tools IDE 1.x
1

HI,

I bought a DOF unit that had a Chinese clone uno in it and want to replace with Arduino, not sure where the wires in the attached go that i have marked in red

(mod edit)

IMG_3741 (4)_LI.jpg
IMG_3741 (4)_LI.jpg2582×3883 597 KB

IMG_3741 (4)_LI.jpg
IMG_3741 (4)_LI.jpg2582×3883 597 KB

2

  1. what is a DOF unit? (depth of field) - it looks like an UNO

  2. who drew the 5 red lines?

  3. Where the 3 wires are is a communications area.
    TX & RX look like RS232 5v
    SCL & SDA are IC2 communication lines

SCL is the clock line. It is used to synchronize all data transfers over the I2C bus. SDA is the data line. The SCL & SDA lines are connected to all devices on the I2C bus.

You would use one or the other.

  1. not sure why you don't know where the other 5v line goes - it's a 5v line.

  2. you certainly should be connecting the ground plane somewhere.

3

dof is my racing sim, this board links to 3 arduino motor controllers. The only wires I had in question were in red from the old china junk to new arduino, all others lined up correctly, but was not sure where to connect those remaining. can i connect to the ISCP on ardunio for ground and hot 5v?

4

The UNO is only transmitting so doesn't use the RS232 receive RX pin

Plugging RS232 uno pins into google for you gives
Uno, Nano, Mini 0(RX), 1(TX)

Re the I2C interface it appears to also only be transmitting on the SDA pin - again per google
Uno A4 (SDA), A5 (SCL)

Verify both of those google lookups yourself.

My understanding of the I2C protocol though is that it shares the SDA bus and needs the SCL clock but if it is working maybe they are using it for a second RS232 TX line through software. As a bus I2C signals go both ways not just out.

Ground and power should be normal. They go to ground and VCC 5V

Have fun!

p.s. DOF appears to mean degrees of freedom and a DOF simulator is a immersive game

5

Thank you. have everything soldered in and uno shows up in device manger, however my system has 3 arduino 1bt2 motor controllers connected to uno. When the connection is made to the 1bt2 the UNO disapears from device manager.

When I unplug controller 1 (1bt2) uno reappears in device manage. Is this a definite indication the controller has failed or could this be caused by motor over extending parameters

IMG_3744 small.jpg
IMG_3744 small.jpg4032×3024 205 KB

6

@TENDONITUS

Could you take a few moments to Learn How To Use The Forum.
It will help you get the best out of the forum in the future.

Posting tips.

  • Your OS and version can be valuable information, please include it along with extra security you are using.
  • Always list the version of the IDE you are using and the board version if applicable.
  • How to insert an image into your post. ( Thanks Robin2 )
  • Add your sketch where applicable but please use CODE TAGS ( </> )
  • Add a SCHEMATIC were needed even if it is hand drawn
  • Add working links to any specific hardware as needed (NOT links to similar items)
  • Remember that the people trying to help cannot see your problem so give as much information as you can
7

Get a multimeter and measure what those extra pins are connected to; one can't always trust the printing on those boards.

If you disconnect and the Uno shows up again, there is probably nothing wrong with the Uno; more likely your wiring.