need help with the serial port of an arduino to a propeller 'Flip board

Using Arduino Programming Questions
1

Hi; I am back with problems with my hand controller. I tried to send the data over a serial line but I'm not getting a signal to the receiving device(propeller 'flip'). I tried to read the serial output but I don't know how to set up the print lines. This is my serial output:

Serial.begin(115200);
   Serial.write(RmotorPin);
   Serial.write(RdirPin);
   Serial.write(DmotorPin);
   Serial.write(DdirPin);
2

I may be thick, but how is this an I2C issue?

(Try to imagine that we don't have any idea what your hand controller is)

3

looks like you just want to print the pin values ?

this may help you get useful info

   char s [80];
    sprintf (s, " Rmotor %d, Rdir %d, Dmotor %d, Ddir %d",
        RmotorPin, RdirPin, DmotorPin, DdirPin);
    Serial.println (s);
4

If i'm unable to get info into the'FLIP' then I will have to rewrite the programs back to I2C with the nano being a slave and the 'FLIP' a master.

5 
Serial.begin(115200);

That just starts the serial port. It does not send anything. How is the Arduino wired to the FLIP?

6

groundFungus:

Serial.begin(115200);

That just starts the serial port. It does not send anything.

Psst...scroll across.

I still don't understand this topic.

7

I am connected to the Flip with four wires, one is the power to the arduino, one is ground, and two leads for the Tx to Rx and Rx to Tx. I should be able to transmit the the four bytes from the arduino to the Flip. one question I have is about the voltage reduction to the flip, in line resistor or a voltage divider. The Flip operates at 3.3 volts.

8

Care to tell us what the heck a "Flip" is? How about a data sheet?

Why have you titled this thread "Questions regarding I2C" when this discussion has nothing to do with I2C?

9

A flip is a mini board similar to the MICRO but powered with a parallax propeller running at 5-80 MHz. The freq is set by PLL and has 8 processors in a single chip. I originally planned on starting with I2C questions and may still return to I2C.

10

Tried to use info from post # 2 with my main post but get no print or results on the serial monitor. I rarely use the serial monitor so I might not be using it right.I am transmitting to the Flip on the serial lines.

11

I suggest that yu edit your thread title to say that you want help with using the serial port of an Arduino to a FLIP board. That get the attention of someone that can provide help with that specifc board.

12

Telescopeman:
Tried to use info from post # 2 with my main post

What's that?

13

Don't understand your question.

14

I am connected to the Flip with four wires, one is the power to the arduino, one is ground, and two leads for the Tx to Rx and Rx to Tx.

I do not see any TTL serial pins broken out on the Propeller Flip. How did you connect the TX RX?

If there is a software serial library for that device, you might be able to communicate to the Arudino through that method.

I do see an I2C connection and perhaps your original idea of connecting the Arduino to the Flip with I2C is a way to go.

15

Telescopeman:
Don't understand your question.

I meant "What do you consider to be your "main post"?"

16

The very first post with the Serial.write codes.

17

So WT merry F has this got to do with I2C ?

We keep coming back to this, and you seem to disappear for hours or days AND NEVER ANSWER THAT VERY SIMPLE QUESTION.

18

In the last several posts I was considering using I2C in this project. However I have been Told by others that because of the program in the hand controller I cannot use the 'Flip' in the master mode, and since it cannot be used as a slave I have to revert to Serial mode. Now I cannot get anything to print on the serial monitor.

19

Post your code.

20

Program is over 9000 characters long so have to send as an attachment,

sketch_mar09a.ino (10.3 KB)