Hi, Haven't actually used the shield with an Uno-wifi, but would be really surprised if they're not compatible. The motor shield really just needs the pinouts to match and the Uno wifi has standard Uno pinouts, so would say it's a pretty safe bet that it will work fine.
Having so many issue with this it's doing my head in. Just want to run two 3.7 volt 1.2 amp motors from it. One of them runs but the more powerful one won't even fire up most times, no matter what voltage I plug into the VIN. For some reason both lights come on, on the motor, as if it's trying to spin both ways at the same time. I checked my code and all seems exactly as it should be. I think the board I bought is messed up
Voltage will only control the speed of a motor, if your motor isn't wanting to start up a spin, or hesitates, stalls, etc, it's beecause you are not suppling it with enough current (amps). Check how many amps your motor is trying to pull using a multimeter. Look up a video on how to check the STALL current for your DC motor. You want to supply your motor with at least that many amps.
A newb here...I just want to understand because I have seen other people use an external 12v to power 12v motors, so I have a couple of questions. 1. I was under the impression that the dc connector on the Arduino Uno, could only take 9v but you plug in 12v, does this not damage the board? and 2. If 12v doesn't damage the board, do those motors in the video run at full speed? As you can tell I don't understand fully what this shield is capable of or how it works so if you could help me understand I would be apprechiative.
My understanding here is that the motor driver will be running on the arduino's 9V. As you said this will be limiting the power and max RPM of the motors if they are a 12v rated motor. Running the motors in this configuration is also pulling a heap of current through the arduino which is also not advisable. I personally would be using an external voltage source but as you can see you can get the motors to operate without one.
Going straight off the Auduino's power, it will be limited to the 9v. I wouldn't worry TOO much about the voltage increase causing damage, but if those motors are trying to pull 20amps of current through the Arduino board, that board is going to fry. You would want to use external power source. IMO i'd always use external power for the motors, just to isolate the electrcity between them and the audino itself for protection.
Hi, can you help me add a encoder to this sketch. so I can add position controller rather than seconds
This was very helpful! Thanks!
Hello! Do you by any chance know if this shield is compatible with the Arduino UNO WIFI Rev2?
Hi, Haven't actually used the shield with an Uno-wifi, but would be really surprised if they're not compatible. The motor shield really just needs the pinouts to match and the Uno wifi has standard Uno pinouts, so would say it's a pretty safe bet that it will work fine.
Having so many issue with this it's doing my head in. Just want to run two 3.7 volt 1.2 amp motors from it. One of them runs but the more powerful one won't even fire up most times, no matter what voltage I plug into the VIN. For some reason both lights come on, on the motor, as if it's trying to spin both ways at the same time. I checked my code and all seems exactly as it should be. I think the board I bought is messed up
Voltage will only control the speed of a motor, if your motor isn't wanting to start up a spin, or hesitates, stalls, etc, it's beecause you are not suppling it with enough current (amps). Check how many amps your motor is trying to pull using a multimeter. Look up a video on how to check the STALL current for your DC motor. You want to supply your motor with at least that many amps.
@@AthuraMyst Thanks but I figured it out in the end, I bypassed the board and installed my own Fet, cap and diode. I got my money back on the board.
0:26 12 volt 20 amps motors?
any code ?
Nice!
A newb here...I just want to understand because I have seen other people use an external 12v to power 12v motors, so I have a couple of questions. 1. I was under the impression that the dc connector on the Arduino Uno, could only take 9v but you plug in 12v, does this not damage the board? and 2. If 12v doesn't damage the board, do those motors in the video run at full speed? As you can tell I don't understand fully what this shield is capable of or how it works so if you could help me understand I would be apprechiative.
My understanding here is that the motor driver will be running on the arduino's 9V. As you said this will be limiting the power and max RPM of the motors if they are a 12v rated motor. Running the motors in this configuration is also pulling a heap of current through the arduino which is also not advisable. I personally would be using an external voltage source but as you can see you can get the motors to operate without one.
Going straight off the Auduino's power, it will be limited to the 9v. I wouldn't worry TOO much about the voltage increase causing damage, but if those motors are trying to pull 20amps of current through the Arduino board, that board is going to fry. You would want to use external power source. IMO i'd always use external power for the motors, just to isolate the electrcity between them and the audino itself for protection.
Thanks bud
bare minimum of the shield capabilities, would be nice if someone could do a comprehensive tutorial.