The internet article say:
Connect a 3.3 uF to 10 uF (MicroFarad) capacitor directly on the module from +3.3V to Gnd (Watch + and - !) [Some users say 10 uF in parallel with 0.1uF is best]
https://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo
but which one are the best, i personally use 10uF but i want to get the most efficient connection
out of my nRF's so which caps are the best to use ?
Would be a good idea to use:
10uF X5R Error 10% 10V 0603 SMD Chip Multilayer Ceramic Capacitor??
As long as you are using the recommended cap 3.3 uF to 10 uF you should be ok, but definitely include the 0.1 uF cap in parallel. The larger cap will respond to slow frequency changes and the 0.1 uF cap will respond to the high frequency switching spikes the larger cap cannot respond to.
I have had no problems with just a 10µF capacitor.
...R
recommended cap 3.3 uF to 10 uF you should be ok, but definitely include the 0.1 uF cap in parallel.
Two things are going in here:
the 5uF (+/-) cap is the bulk capacitor and is in the circuit to assist in maintaining the voltage when the Arduino is called upon to supply additional current: say for LEDs. Wiring from the Arduino back to the power switch back to the batteries or power supply has a small resistance and therefore there is a voltage drop based upon current drawn by thecArduino.
the 0,1uF is a bypass capacitor to 'ground out' (short) higher frequencies that may be on the power rail. Such noise can exist because of AC to DC power conversion and regulation, or DC-DC boost/buck converters. If the bulk is a 10uF tantalum, the natural low-Z of that part may allow the designer to omit the 0.1uF without degrading the filtering quality.
Ray