[Simulator For Arduino Crack
Eliora Shopbell
I have an Arduino UNO, but I want to use a simulator to make certain projects that I can not do in real life because I do not have the components and now I can not buy them, also a simulator is useful to test my projects and see if they work and then pass them to reality.
I agree with your point, when things do not go the right way, you do not know if the simulator is at fault or something else. The more parameters you add to the equation the more difficult it is to solve. You also have to get into the mindset of the people who designed the simulator.
Hi everyone, I would need some arduino program that will behave like the DS18B20 because I am testing a device that uses the DS18B20 sensor. I don't know his code and I need to be able to simulate different temperatures
Do you have code? Post the code and describe, in detail, what it actually does and how that differs from what you want. Read the forum guidelines to see how to properly post code.
Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.
You can use a pot and an analog input to give you an instantly variable value, then convert that to the range of temperature you need using possibly map() function.
Then pass the temperature variable onto the bit of code that needs the temperature reading that would normally come from the DS18B20.
the device has an accuracy of +/- 0.1 so probably 11 or 12 bits accuracy. Rather basic experience. I need the device to be able to receive data from the device and send a temperature response with the appropriate accuracy. temperatures will be two and will be specified in the code
How do you want the output to be presented. Display, data such as RS232?
OR
Do you just want a HIGH or LOW digital signal to show if the temperature you are measuring is HIGHER or LOWER than the setpoint temperature?
I don't think he needs any of that, and you are just adding to the confusion. OP just wants to test a device that (usually) reads a DS18B20, and wants to do that by using an Arduino to send it dummy signals. What he says actually reads quite clearly.
I have deleted my posts because I was adding to the confusion too, but the essence of the first may be correct, and all he needs to do is check the data sheets to see and understand to form of the datastream from a DS18B20, and duplicate it from an Arduino, inserting whatever value is required.
Hey Everyone,
New to forum. Very intimidating with all the information available on here. Not sure where to start. I repair/rebuild ECM's and Instrument clusters and would like to build a crank/cam simulator. Have never used an Arduino and do not know anything about programming. The signals I would like are 60-2, 36-1 etc and not sure how to get there. Where do I start and what do I need. I have Arduino UNO and tons of electronic parts. Just need knowledge. I am on the older side so be nice with the comments
Cam and crank sensors can be variable reluctance or Hall effect so analog or digital depending on the OEM.
A 60 - 2 configuration means that there is a tone ring on the crankshaft that has spacing for 60 teeth, but only 58 are present. The two missing teeth identify the #1 cylinder at TDC. If it was 36 + 1, it would be 36 teeth on a 360 degree wheel, with #36 having an extra tooth.
I am sure there are articles on this forum somewhere but I have no idea where to start looking. I would like to learn how to do this myself but not sure how steep the learning curve is. I am a sponge so as long as it is put in laymans terms, I can figure it out.
sounds simple enough, but since you understand the crank/cam relationship perhaps you will have an easier go at it than asking us engine noobs. I just whack in higher lift and duration with a little overlap and I'm happy. Look into timing with millis() and micros()... pretty sure engine speeds are no issue with Ardunio. Just pick how you want to output this signal and make sure your switching device is fast enough for a nice edge. Easy peazy.
Millis and Micros....am I looking in a particular part of the forum or.....
While I understand cam/crank relationships and what I should see on a scope, I have no understanding of Arduino and its capabilities but more than willing to learn. Just point me in the right direction. I feel like a row boat in the Atlantic Ocean if that makes sense.
do you have a picture of the scope? It might give me a better idea what we're dealing with. I'm sure it's just a matter of doing some math to figure out RPM and the pulse relationships you're looking for. There are references in the Aruduino site that explain all the functions and commands but I'm not sure if this is much closer to what you need... you should get the concepts down. Once you can answer some of the questions below, you can start to build and test it. But you need to get an overall concept of what you want. Sometimes it helps to draw out a diagram.
Many Hall Effect sensors produce an 'open collector' signal. Arduino can easily simulate that without extra parts for 5V or only a few parts for 12v-15v depending on your ECM. You can start searching and learn from the various 'blink' examples. You count 60 blinks and then suppress 2 blinks etc.
After a little experience, you could try to add circuitry that would simulate the signal from a variable reluctor. That is slightly more complicated because the signal must sweep from a positive voltage through zero to a negative voltage. The arduino world kind of sticks mostly to the +5 volts to zero volt range but it's not hard.
It would be very helpful if you could attach a sketch of the pulse signals you want the Arduino to generate over one engine revolution. Changing the overall time period for different RPM is pretty straightfoward.
Tom...
PS, many many years ago I used to service Electronic Engine Analysers and I built a simple electronic engine with a LM555, 4017 decade counter and two electronic ignition modules and coils, connected to a spark plug each.
Okay you guys are bang on the money. I want to simulate signals that an engine would produce, so that I do not have to build some scary unit with a motor and tone wheel. If I can do it electronically, that would be great.
I would refer to the JimStim, Ardu-Stim, and maybe Speeduino type of concept for what I am after. I am attaching a known good cam/crank waveform that I would try to emulate. I would like it to work from maybe 500 rpm to 6000 rpm or better if possible and be able to modify it to fit other signals The two gears in the post above are perfect and I do have that article although some of it is above my pay grade.
So how do I start?? You guys are awesome. Thank you for the help.
That is exactly what I am looking for but how do I build it? Or can I build it with the UNO? Like I said, no experience programming or with UNO. Need laymans terms guidance. Electronic part not a problem.
bwilliams60:
That is exactly what I am looking for but how do I build it? Or can I build it with the UNO? Like I said, no experience programming or with UNO. Need laymans terms guidance. Electronic part not a problem.
Before you jump into the deep end you should find some tutorials on using the Arduino.
1 Such as installing the IDE, the interface for programming the Arduino.
2 How to download your program to your Arduino.
Here is a good place to start.
When you have done this, play with some of the examples that come with the IDE to get a feel for things.
You are not going to learn this stuff in one day.
People are here to help you with your project, not do it for you.
Also read the sticky at the top "How to use this forum", it will keep you in good graces with the members of this forum.
It is quite intimidating when you first start, but if you slowly take it step by step it will come to you.
I've exhausted every troubleshooting technique I can imagine, please help! I donated to the project about 2 weeks ago when I first downloaded sim hub cause I love the idea. First project was set to be the win sim. Bought an Arduino Uno, motor shield, fans, etc. I have everything setup according to the tutorials I found online and various Youtube content creators. Flashed the Uno with the ATMEGA238P loader, it's recognized as an arduino. I have Shakeit enabled, I enabled the "Speed" toggle and ensured volume = 100% every where I can imagine.I enabled the correct motors for the shield but anytime I click TEST on the Speed toggle or individual motor nothing happens. The UI shows the activity but the fans never spin. I've tried 4 fans now, 2 Uno's, 2 motor shields and even 2 power supplies. I have no idea why this isn't working.
Here's the log when I connect the arduino and some pics of the board as well. Not sure what other pictures you might want? I will say that the RX, TX and L orange lights are always on when it's plugged in, does that help any? Thank you again for the assistance.
Have you tried removing the jumper the motor shield and providing the power through screw in connectors on the motor shield as I dont believe the fans will power up if the power is routed through the arduino. The Arduino board will draw its power from the USB.
There are a few main "known" errors :
- Polarity : the fan will only run in one direction, if fan wiring polarity is wrong it won't move (voltmeter will help you on that).
- Gain too low not giving enough power to start the fan : Make sure the simhub gain is not too low (see -V3-Motors---Output-Configuration#configure-volume)
- Bad board being configured at upload (I don't know how it can happen with pictures ... but it happens :D)
- Unsupported board, "arduino motor shield", "adafruit motor shield" ... names are close, but it requires to be the exact model, not a close name.
- Unmapped effects : you need to assign the effect to the output, as it can be anything from fan to vibration motors it's not "mapped out of box" :
- Bad solders : adafruit official board comes unsoldered, but if soldering is "meh", it will prevent it from working, you can use adafruit test examples to ensure your board is working as intended: -motor-shield-v2-for-arduino/using-dc-motors
795a8134c1