![]() stop (), the motor stops and then the esc goes into … To install the ESP32 board in your Arduino IDE, follow these next instructions: 1. To use this library, open the Library Manager in the Arduino Arduino library for SP140 ESC. Search/look for “ESP8266” on this webpage. You can google them to see how they work. Thanks again for your help! I'm still learning at an older age.Arduino esc library. Is this possible? Two different circuits, powered differently (even though they are dc at the connections points to the pot) sharing the same ground? When using the pwm-to-low pass filter set-up, I would need to make the grounds of both circuits commom, right? I mean, I would need to connect the arduino ground to the ground terminal where the motor's pot is. ![]() I've got a small oscilloscope if needed.Īs arduino is one circuit. I don't know how much of this 24V AC inside the control box gets transformed into DC, and how much of it powers the bldc.ĭoes this help? If not, tell me exactly what I should look for then I'll try to provide the details. It needs 24V AC, so I bought a huge 12-0-12 6A transformer And of course, an on/off switch, on/off led. There's also a button to invert the rotation, and I'll also control it with the arduino through a 4066 CI. Meant to be built in (in one of my workbenches)Īs I'm no expert, what exactly mean complete motor details, so I can try to find out more.Īttached are some pics of the control box and it's manual. My motor is a prosthetics lab brushless one, complete kit. The control box has an input of 24VDC and 4.8A, and it´s rated for 150W. I could measure it again to have exact numbers of voltage and current. ![]() I have measured the 3V between the outer pot connections and the current was tiny(don´t remember the exact value). It´s hard to find in my country and it takes 2-3 months to arrive from ebay when I purchase them. If the digital pot is more efficient and stable, I´ll stick to it. I was only wondering if I could not use the digital pot instead. I already have a circuit with a digital pot that works, but I haven´t finished the code yet to test it with the motor. I didn´t want to mess with the circuit inside (so far). and have the speeds pre-set and controlled by buttons. My only goal was to replace the pot that controls the speed with a digital pot. I really don´t know much more about the inside of the control box. Please post full details of the motor driver you are using - it may not be as simple as that. I this feasible, possible or the digital pot is safer and makes more sense? ![]() Then could I change the PWM output to 3V instead of 5? A simple voltage divider would do the trick? So could I use one of the PWM ports to replace the wiper terminal of the potentiometer, so I could not even need the digital potentiometer? Could I "insert" a pwm varying this signal from 0 to 5V on where the wiper terminal would be connected? I´d have to connect the ground of arduino in the ground terminal on where the pot connects also The voltage on the wiper is the one that changes the speed, right? The pot is needed to create this voltage on the wiper, right? What changes the speed on the controller for the brushless motor I´ve got it´s this 100k pot that varies the signal from 0V (one pot terminal) to 3 V(the other pot terminal). So, my approach was to make a circuit and code to control a 100k digital potentiometer by buttons, and then replace the original 100k pot with the digital pot.Īnd so far it´s going well, and the digital pot works.īut I was thinking on another approach, and I´d like to know if it´s electronically possible. I want to have pre-defined speeds, adjustable by buttons. I´m in the middle of building a digital way to control the motor. I adjust it´s speed but changing a 3v signal by a 100k pot, with a very weak current. I´ve got a brushless motor I bought, complete with it´s circuit, and it works fine.
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