can someone give me an example of how to control a stepper motor by cell phone? I'm trying more specifically for blynk, through esp-01
the idea in total is that I can use the blynk, and using an RTC (ds3231) to control the operation of the motor (stepper, 5v more specifically the 28BYJ-48 + Driver ULN2003), connecting it according to the time determined by blynk (which I would type it in) and that this same time would be checked using the RTC sensor as a reference, then I would have to determine the weight on a scale (hx711 + load cell) it starts the engine in a time interval (which I would also determine posteriorly)
I know that everyone comes here with the same argument that they don’t understand programming, but in this specific case I didn’t find any code to be able to try to edit
For code to edit... there are examples for Blynk, there are examples of running the 28BYJ-48, there are examples for the load cell, etc. Your job is to connect those bits and pieces together and make it work the way you want it on the hardware you picked.
Start building it up bit by bit, testing each individual function as you go.
For code to edit... there are examples for Blynk, there are examples of running the 28BYJ-48, there are examples for the load cell, etc. Your job is to connect those bits and pieces together and make it work the way you want it on the hardware you picked.
Start building it up bit by bit, testing each individual function as you go.
as much as I agree that there is this kind of example that you mentioned, my doubt is precisely in the matter of linking the variable that I put in the blynk to replace in the engine code by means of a condition (I believe that that would be what I have to be done, no?), it doesn't actually exist (or at least I haven't found it)
I don't know how to put these two parts together correctly, and at least I didn't find an example that was in a similar situation (at least not using engines of this type)
the only tutorials that i found talk about reading variables on arduino and sending them to blynk (like an MQTT) but it’s not exactly what I’m looking for
The chance of finding code that is exactly what you need is not much greater than zero. You will always have to do your own changes and additions.
One of the first examples I encountered with Blynk is where a phone is used to switch on and off an LED that's connected to a NodeMCU. Just replace the LED by the stepper...
wvmarle:
The chance of finding code that is exactly what you need is not much greater than zero. You will always have to do your own changes and additions.
One of the first examples I encountered with Blynk is where a phone is used to switch on and off an LED that's connected to a NodeMCU. Just replace the LED by the stepper...
[color=#202124]I'm sorry for the delay, I will have to deviate a little from the subject, so, I acquired a mega and it arrived today, as directed I tried to use the sample code but for some reason it is not working on the mega (none of the codes you have on library to be specific and I also had a code made from scratch, which didn’t work) I already tested the connections, I know the engine works because at UNO it was fine, and I also tested MEGA so I believe that n is none defect
the only observation is that it does not give any error code, it compiles everything correctly but nothing happens[/color]