Customer:
I want to know how to power 6 MG995 servo motors while using an Arduino board to control the position of each motor. Is a 5V 3A USB-C power supply sufficient to connect to an Arduino board? If 5V 3A is not enough and I use 5V 4A instead, how should I connect such a power supply that doesn’t have a USB-C connector?
Original message (Croatian)
zanima me informacija kako bih mogao napajati 6 servo motorića MG995 te ujedno koristiti nekog tipa ARDUINO pločice za kontrolu pozicije pojedinog motorića. Je li dostatno napajanje 5V i 3A s USB-c izlazom spojiti na možda već neki tip ARDUINO pločice. Ako se već ne može koristiti 5V i 3A za gore navedeno i uzme se npr. napajanje od 5V i 4A, pitanje je kako bi se trebao povezati takav tip napajanja koji konkretno nema USB-c izlaz.
Hvala na razumijevanju i lijep pozdrav
Originally submitted via email support on 17 March 2022. Migrated to the forum for community visibility.
Soldered Support:
The MG995 servo motor draws approximately 350mA when operating, which depends on the load. With 6 motors, the total current when all motors are running would be around 2.1A. When motors are under load, they can require higher current (up to over 500mA per motor), so you need a power supply of at least 3A. This applies when all motors run simultaneously.
I’m not sure which microcontroller board you plan to use, but if it’s Dasduino or Croduino, there’s a problem powering the motors through it because they have a 500mA fuse on board. Another option would be to get a power supply with a different connector that can be connected to wires. The last option is to use a 5V 4A power supply as you mentioned. Connect it so that all GND lines are connected together (motors, Croduino, and power supply), and connect 5V to the Croduino 5V pin and the motors. It’s important to connect all GND lines, and if you’re also using USB to program the Croduino, disconnect the 5V power supply, but leave the GND connected.
Original message (Croatian)
Servo motor MG995 ima struju oko 350mA kada radi što ovisio o opterećenju. Sada ako imate 6 motora to bi značilo da je ukupna struja kada svi motori rade negdje oko 2.1A. Nadalje motori kada su opterećeni mogu zahtijevati i veću struju (mislim da i preko 500mA po motoru) tako da bi trebali napajanje od minimalno 3A. Ovo je slučaj da svi motori istovremeno rade.
Ne znam koju pločicu s mikrokontrolerom mislite koristiti, ali ako je Dasduino ili Croduino onda je problem napajati motore preko nje jer one imaju osigurač od 500mA na sebi. Druga opcija bi bilo uzeti napajanje koje ima drugačiji priključak kako bi se moglo spojiti na žice. Zadnja opcija je da koristite napajanje 5V 4A kako ste i napisali. Njega spajate tako da sve GND-ove spojite zajedno (motori, Croduino i napajanje), a 5V spojite na Croduino 5V pin i motore. Važno je da sve GND-ove spojite, a ako koristite i USB za programiranje Croduina odspojite napajanje s 5V, ali GND ostavite.
Customer:
The information I’d find most helpful is a recommendation for which type of microcontroller to use - something like your Croduino (Arduino) board.
Original message (Croatian)
možda jedino što bi mi dobro došlo kao informacija jest preporuka koji tip mikrokontrolera koristiti. Nešto poput Vaše CRODUINO (tj.Arduino) pločice.
Hvala unaprijed,
[name removed]
Soldered Support:
If you’re using only servo motors without sensors or additional components, Croduino Basic3 would be sufficient for this. Alternatively, the newer board is Dasduino CORE.
Original message (Croatian)
Ako koristite samo servo motore bez nekih senzora ili dodatnih stvari Croduino Basic3 bi bio dovoljno dobar za to. Odnosno nova pločica je Dasduino CORE.