How to increase current in O/P port in Arduino uno ? to make it 200mA How I can do this? It can in proggraming add more current Which sample way to increase current ? To control 2 Dc motor which normally work with 3 AA battery Thanks


You add a transistor. Just like when you're controlling a relay, which needs more current that the Arduino can provide.

  • You can use a TT2148 power transistor-this can connect to arduino without a resistor and deal with high current. – qwerty10 Aug 31 '16 at 23:19
  • Personally I'd prefer a MOSFET... – Majenko Aug 31 '16 at 23:20
  • What model of MOSFET do you prefer to use? – qwerty10 Aug 31 '16 at 23:25
  • That depends on many factors - current levels, switching speed and voltages, footprint, etc. I have many that I often choose between. One of my current common ones is the TSM2314CX – Majenko Aug 31 '16 at 23:27
  • The TSM2314CX then. That depends on many factors-state the obvious! – qwerty10 Aug 31 '16 at 23:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.