Search found 514 matches

by Jordy101091
Mon Jul 18, 2011 6:27 pm
Forum: Flowcode V4
Topic: driving a 1phase induction motor?
Replies: 9
Views: 3083

Re: driving a 1phase induction motor?

@ JhonCrow I'm using National Instruments Multisim v11.0 @ Medelec I think I want to use a lookup table. because I would like drive this with an Microcontroller and digital input not analoge. Instead of an pot. meter I want to use up-down buttons to change the frequentie. the data of the sine wave w...
by Jordy101091
Mon Jul 18, 2011 5:27 pm
Forum: Flowcode V4
Topic: driving a 1phase induction motor?
Replies: 9
Views: 3083

Re: driving a 1phase induction motor?

Hi medelec, Your idea would indeed work, but the problem is that I want to control the speed of my motor. But I think I have an idea. Maybe I can build something like this: http://img641.imageshack.us/img641/7130/concept1phaseinverter.png I think I can drive the two mosfets by an PWM single, where t...
by Jordy101091
Sun Jul 17, 2011 2:41 pm
Forum: Flowcode V4
Topic: driving a 1phase induction motor?
Replies: 9
Views: 3083

Re: driving a 1phase induction motor?

Can you explain in more detail how to control my motor with option (2) -> FET
I'm very interesting.

I dont know what you exactly mean, hope you can explain with some schematics.

Thanks Jordy
by Jordy101091
Sun Jul 17, 2011 11:55 am
Forum: Flowcode V4
Topic: driving a 1phase induction motor?
Replies: 9
Views: 3083

driving a 1phase induction motor?

Hi all, I have done some research on this item on how to drive a single phase induction motor or an 3 phase motor. How I would like to do this is as follow. For driving a 1 phase induction motor I want to build something like this that controll de sinus wave from. http://img577.imageshack.us/img577/...
by Jordy101091
Thu Jun 23, 2011 10:53 pm
Forum: Flowcode V4
Topic: Voltmeter question
Replies: 3
Views: 1481

Voltmeter question

He guys, its been a while busy with school and work but I started a new project to learn more about electronic components such as op amps and other stuff. I'm planning to make a micro controlled power supply. I started with a simple voltage meter from 0-5V and it works great. the only wired thing is...
by Jordy101091
Sat May 21, 2011 5:43 pm
Forum: Flowcode V4
Topic: Driving Piezo with PIC
Replies: 44
Views: 18677

Re: Driving Piezo with PIC

It depends, do you want to use you peizo buzzer to produce a continues tone. Also you need to know if your buzzer works with DC or AC. I case your peizo buzzer works with AC. you can make a multi vibrator that produces a block signal. You can also made a block signal using a standard LM742(i think b...
by Jordy101091
Sun May 15, 2011 2:14 pm
Forum: Flowcode V4
Topic: Little Bit stuck with my project
Replies: 7
Views: 1499

Re: Little Bit stuck with my project

Thanks, I just wanted to post a reply to says its all working fine, I dint read you comment @ all :lol: But what you say is correct, I have just put a calculation block @ the begging of the DS1820_temp_set macro with the following calculation: keypad_press = 0 and uploaded it again and it works just...
by Jordy101091
Sun May 15, 2011 12:30 pm
Forum: Flowcode V4
Topic: Little Bit stuck with my project
Replies: 7
Views: 1499

Re: Little Bit stuck with my project

Hi, Martin

The problem is still present, I have run the program in the simulator and it operating correctly.
But on the hardware, if I enter the first digit the cursor jumps immediately to position 9,1.

I dont know what the problem is, maybe you want to have a second look.

Thanks Jordy Kleian
by Jordy101091
Sat May 14, 2011 10:57 pm
Forum: Flowcode V4
Topic: Little Bit stuck with my project
Replies: 7
Views: 1499

Re: Little Bit stuck with my project

Thanks Martin, Now It works but I have some trouble to get the following work: Setting the temperature works great but I don't want to just put in 245 I want it to be like this 24,5*C I have managed to get this to work in the flowcode simulator but on the hardware it doesn't work at all. The cursor ...
by Jordy101091
Sat May 14, 2011 6:30 pm
Forum: Flowcode V4
Topic: Little Bit stuck with my project
Replies: 7
Views: 1499

Little Bit stuck with my project

Hi all, I'm a little but stuck here, Im being busy with aquarium controller and I have my DS1820 and keypad working correctly. What I'm trying to do is to set the temperature trash hold of my ds1820 so it let me know when the temperature is to high. I want to use my keypad for this, and i'm trying t...
by Jordy101091
Thu May 12, 2011 9:48 pm
Forum: Flowcode V4
Topic: strange keypad reading
Replies: 1
Views: 728

Re: strange keypad reading

Sorry, I have found my problem, The problem was that my Pull-down resistors where to small, If you dont have 100k resistors that you need to use with 10k 10k = collums 100k = rows if you dont have these you cant use 10k instead (stupid) You then need to use: 1k for the collums and 10k for the rows. ...
by Jordy101091
Thu May 12, 2011 8:11 pm
Forum: Flowcode V4
Topic: strange keypad reading
Replies: 1
Views: 728

strange keypad reading

Hi all, I have some trouble with my keypad that I have bought from Conrad.nl. This is the specific keypad: [urlhttp://www1.conrad.nl/scripts/wgate/zcop_nl3/~flNlc3Npb249UDkwX05MX0IyQzpDX0FHQVRFMTY6MDAwMS4wMGE2LmVkYmRmNDdlJn5odHRwX2NvbnRlbnRfY2hhcnNldD1pc28tODg1OS0xJn5TdGF0ZT00MjgxODQ4OTk3====?~templ...
by Jordy101091
Tue May 10, 2011 4:39 pm
Forum: Flowcode V4
Topic: I2C
Replies: 5
Views: 3013

Re: I2C

Hi Mario, I have taking a look at you flowcode program, And what I think is wrong is as follow; I understand that you are using a DS1307 (RTC) First thing I found is that you are not giving the DS1307 a read or write command. If you read the datasheet carefully you will notice that the DS1307 has a ...
by Jordy101091
Mon May 09, 2011 6:58 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

First Off all, Thanks Ben for your'e support. Your solution is very nice, I like it a lot. What I dont like about your solution is that it uses floating point calculations, it uses much more flash memory then if you wont use it. but over all its very well done. But still floating point :shock: I tho...
by Jordy101091
Mon May 09, 2011 4:06 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Thanks, Ben

I will try this to night, hope it works.

I will let you know.

Regards Jordy
by Jordy101091
Fri May 06, 2011 5:59 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Hi ben sorry for the late response,

Here is my program

Thanks

Regards Jordy
by Jordy101091
Thu May 05, 2011 7:31 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Here is the link to the datasheet : http://datasheets.maxim-ic.com/en/ds/DS18S20.pdf

Hope you can help me.

Thanks,

Regards Jordy
by Jordy101091
Thu May 05, 2011 3:51 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Hi ben thanks for your reply, How do I use the Costume Code to edit the code for the function DS1820_get_temp Would you mind to explain to my how that can be done. I would really appreciate it. And no i dont know how to combine the scratch pad values to get a better resolution. Hope you can explain ...
by Jordy101091
Thu May 05, 2011 11:56 am
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Hé Ben, Maybe you can explain me how I can have a better resolution. I have now a resolusion of 0.5 but it would be nice if I can get this to 0.1 I have read about that on many forums and also in the datasheet, but I dont know how I can do that. I know that I need information from the scratchpad I t...
by Jordy101091
Wed May 04, 2011 11:24 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Hi, again :mrgreen: I have some important news I build it I test it I hath a problem And finally I fixed it. Yes, Yes It works thanks to the datasheet that I have read over and over again (10x) The datasheet says that if the DS1820 puts out a value of 85C its a default value on power-up. And it also...
by Jordy101091
Wed May 04, 2011 6:44 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Hi, again I have done something but I dont know what to do with it. I have add the getpadbyte function into my program to see what the values are of the different addresses of the scratchpad. So I have pointed the index byte to: 0 = LSB 1 = MSB 6 = Count_Remain 7 = Count_P_"C 8 = CRC What I fou...
by Jordy101091
Wed May 04, 2011 10:55 am
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

Re: DS18S20 Temp. Reading (HELP)

Hi, all I have made some changes to the program just to see if there is time-out and if it reads the scratch pad correctly. On the display you will see: StrConv = DS1820_Start_Conversion return value <<<< this must be a 0 otherwise the DS18S20 has a time-out RdScrat = DS18S20_Read_Scratchpad return ...
by Jordy101091
Tue May 03, 2011 11:33 pm
Forum: Flowcode V4
Topic: DS18S20 Temp. Reading (HELP)
Replies: 22
Views: 5191

DS18S20 Temp. Reading (HELP)

Hi, everyone I have bought 2 DS18S20-PAR digital temperature sensors, to implement into my aquarium controller. Ad first I had an analogue sensor KTY26-1 witch you have to make a lookup table to determine what the temperature is. Now I understand How I need to do this, Thanks a lot for your help peo...
by Jordy101091
Sat Apr 16, 2011 10:15 pm
Forum: Flowcode V4
Topic: 18F4455 Crystal ???
Replies: 3
Views: 1151

18F4455 Crystal ???

HI Guys, I have one small question, I recently bought a PIC18F4455 Microcontroller. But I dont have the wright Crystal. On my EB006 board there is an 19.6608 MHz crystal. But the 18F4455 doesn't work @ that frequency. I want to use the USB functionality of this device, I don't care for Full ore Low ...
by Jordy101091
Tue Apr 12, 2011 9:29 am
Forum: Flowcode V4
Topic: Aquarium Controller Temp. reading question?
Replies: 20
Views: 5050

Re: Aquarium Controller Temp. reading question?

Almost, The temperature reading is working correctly. The update time of one min. Is working fine. The only Thing thing that's not completely working, is the notification of The temp. To high to low. But that only needs math. The next step is to make room for an ph sensor, current sensing circuit. A...