open source Atmel/arduino PID motor control

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Originally Posted by timmyb199

Mike,

I you stop in, do you have a .pde with code with updated pins. I cant get his to compile now and after 5 hours of trying to get the lcd i have to work with his i am losing my mind. I have a 16/2 lcd. I can get it to work but not with his library. Any help would be much appreciated

Tim

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Tim,
I am still involved in other projects, however, i purchased all the parts for this PID. I shall soon clear my hand on this project however, my approach will be totally different...
What do you think if we put all the stuff of SuperPID and much more in it?.. The parts cost me around 10US dollars including ATMEGA328P-PU and 20x 4 LCD.
Sorry i can't help you in this time, only if you post the Arduino Sketch..You say Arduino sketch (.pde) compile but LCD not working???Am i right?
Regards

timmyb199 If you are using .pde file use Arduino 0022.
Arduino 1.0.2 file extension is .ino . what code you are using .

thanks for all the help guys, i have tried to post 5 times and it takes me to main page, this is a a test post

This is what i am using, again i am new to arduino and circuit board stuff but have been trying my best to learn.

I attached the folder from OP.

It says to add the libraries to arduino libraries, pid and lcd4bit

I just reinstalled Arduino 1.0.3 and did the libraries the way he stated. It compiled

I load it and i get black boxes on top row of lcd. I am just wiring the lcd part, i am thinking perhaos i am wrong in this manner i attached the files

Quote:

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Originally Posted by timmyb199

I load it and i get black boxes on top row of lcd. I am just wiring the lcd part, i am thinking perhaos i am wrong in this manner i attached the files

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Seems to me bad wiring/loose wiring connections. Also check the contrast POT, turn it to get visible figures. Can you post a video?

You are using old version. go here https://github.com/straga/PIDSPINO/t...mware/vSpindel
and get new version.As Khalid said check also the contrast pot.

loaded the new code now i get garbled stuff, your see 0's and weird letters. I will go get my iphone fixed and post some video. Thanks again for all the help guys. I am going to mill the pcb today and maybe that will remedy some.

I finnally got pcb-gcode to work.

i am using an old ide cable to tie the lcd into the breadboard. i dont think that should cause an issue.

will keep u all updated

Change this line LiquidCrystal lcd(13, 11, 7, 8, 9, 10); to suit your connections.

ok i ran this code

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.print("hello, world!");
}

void loop() {
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 1);
// print the number of seconds since reset:
lcd.print(millis()/1000);
}

it worked great so i then

went to vspindle 2.0 code and changed the numebrs to the above and it started up and said v spindle :) im not sure why i can get v2 working with the numbers it provides even when i tripple check the wires. so i am going to see if i can get the simple code to work with the numbers from v spindle after a rewire

thanks for the help guys. i wanted to know it started up. now i am gonna try carving my first PCB board on my mill

i found a 10vac transformer i am going to try,

I am curioius if there is a way we can use like a h bridge or somehting to remove the transformer aspect. it would certainly simplify the board. let me know any ideas. im looking into it myself but i am not a genious at all this yet

Stick with transformer, 10 volts will be fine
Be careful!

been away for the weekend
back again :)

couple of points
a) looks like I neglected to notice that D3 is used for the RPM interrupt
- so we have to re-route the board :(
b) as others have pointed out, the pins actually used by the LCD have to be passed in the first call to LiquidCrystal lcd(rs, enable, d4, d5, d6, d7)
c) the comments in the code are close to, but not the same as the code itself!
d) you CANNOT replace the transformer with a H bridge - that is just madness
- you could conceivably use a resistor divider, but we're talking mains here
- stick to the design and use a transformer
e) 12 volts seems to be an arbitrary value
- 5 or 6 volts would make much more sense
- that way we could incoporate an on-board voltage regulator :)

I have re-drawn the board to put the interrupts back where they belong
of course that stuffs up the LCD pins :)
there also isn't an easy way to route ISP and FTDI, so I have dumped ISP

I'm still ploughing through the code trying to fathom some of the constants that are used
some are quite obvious :)
some are most obscure :(

once I have a layout and set of code that match I'll update

be warned the current board WILL NOT WORK as the RPM sensor is NOT connected to D3
sorry chaps

I'm gonna pull up the original board he had and see. I want to cut a pcb tomorrow night. Will let ya know how it goes

Hookup an LCD to an Arduino in 6 seconds with 3, not 6 pins

Shift register might be a key. Would free up allot on the board

I thought of an alternative to the transformer cause I don't see one involved with the super pid

Quote:

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Originally Posted by timmyb199

Hookup an LCD to an Arduino in 6 seconds with 3, not 6 pins

Shift register might be a key. Would free up allot on the board

I thought of an alternative to the transformer cause I don't see one involved with the super pid

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That was my point.. do not use transformer... I always use shift register with LCD to save pins.

I am using this library https://bitbucket.org/fmalpartida/ne...stal/wiki/Home.

There must be connection to pc because you need to set PID settings to your setup.
Processing and PID FrontEnd are software which it is done.
My opinion is that it is best use separate board with triac and driver.

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Originally Posted by Khalid

That was my point.. do not use transformer... I always use shift register with LCD to save pins.

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How are you doing the zero cross without a transformer again I am new at this

Mike or anyone. What size Cnc pcb bits do you recommend for this. I had a 2 mm and its too big

I was recommended these

Hi Did anyone have problems compiling the vspindel_v3.pde using Arduino 0022 IDE ?

I just get errors

vspindel_v3.cpp: In function 'void setup()':
vspindel_v3:59: error: 'poweron2' was not declared in this scope
vspindel_v3:61: error: expected `;' before 'pinMode'
vspindel_v3.cpp: In function 'void loop()':
vspindel_v3:137: error: expected `;' before 'print'
vspindel_v3:147: error: expected `;' before '}' token

Or is there an updated sketch?


PS. might be a thought, if your struggling for pins, is to use I2C for the LCD with the LiquidCrystal_I2C library. Any temperature probes or real time clocks could also share the i2c bus. I2C Requires the Arduino Analog Pins 4 and 5 and two pull-up resistors

I have attached an Eagle BRD and SCH showing a PCB i made in the past, along with the PCF8574 extender Arduino library