NRF24L01 power testing

Module NRF24L01 not change power consuming, 17ma on

radio.setPALevel(RF24_PA_MAX); or radio.setPALevel(RF24_PA_LOW);
Way not change power in ma?

//Once again, begin and radio configuration
  //We start the radio comunication

Maybe helpful to show us all the code.

Looks like from the small snippet you revealed that the NRF24 is only ever in receive mode, so you would not expect changes in the setPALevel() to have any affect until you actually transmit something.

But maybe the answer is in the rest of the code.

code an libraries is here:

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(9, 10); // CE, CSN         
const byte address[6] = "00001";     //Byte of array representing the address. This is the address where we will send the data. This should be same on the receiving side.
int button_pin = 2;
boolean button_state = 0;
void setup() {
pinMode(button_pin, INPUT);
radio.begin();                  //Starting the Wireless communication
radio.openWritingPipe(address); //Setting the address where we will send the data
radio.setPALevel(RF24_PA_MIN);  //You can set it as minimum or maximum depending on the distance between the transmitter and receiver.
radio.stopListening();          //This sets the module as transmitter
void loop()
button_state = digitalRead(button_pin);
if(button_state == HIGH)
const char text[] = "Your Button State is HIGH";
radio.write(&text, sizeof(text));                  //Sending the message to receiver
const char text[] = "Your Button State is LOW";
radio.write(&text, sizeof(text));                  //Sending the message to receiver 
radio.write(&button_state, sizeof(button_state));  //Sending the message to receiver 

So with this packet transmitting in only around 250uS, what are you using to measure the current ?

How are you measuring current? Most DMMs are not fast enough.

how to change to max duration transmitting about 10 or 60s?

need any code to measure transmitting ma on nrf24.

Are there any functions in the library or details in the datasheet that suggest it is possible ?

The NRF24 is a packet based transmitter, it sends packets of max length 32bytes and the slowest data rate is 250kbps.

if using this code to measure range and signal no change power on nrf, only 17ma if change 4 power station.

Again, how are you measuring the current?

digital multimeter. set range to 200ma.

like this picture image
my cd load is gnd and vin arduino pin

Answer already given in post #5.

You can measure the current during transmit by monitoring the voltage across a low value resistor in series with the NRF24 VCC with a scope.

You need something like the PPK to see the differences in power consumption.



Power Profiler Kit II - 1

The Power Profiler Kit II (PPK2) is a standalone unit, which can measure and optionally supply currents all the way from sub-uA and as high as 1A on all Nordic DKs, in addition to external hardware.

The PPK2 is powered via a standard 5V USB cable, which can supply up to 500mA of current. In order to supply up to 1A of current, two USB cables are required.

An ampere meter only mode, as well as a source mode (shown as AMP and source measure unit (SMU) respectively on the PCB) are supported. For the ampere meter mode, an external power supply must source VCC levels between 0.8 and 5V to the device under test (DUT). For the source mode, the PPK2 supplies VCC levels between 0.8 and 5V and the on-board regulator supplies up to 1A of current to external applications. It is possible to measure low sleep currents, the higher active currents, as well as short current peaks on all Nordic DKs, in addition to external hardware.

Andreas Spiess video about that device. 1

this is only way to measure power consumption nrf24 module? Any idea to check status on nrf24, low, min, max or high?

No, there are a lot of more expensive solutions to measure such a dynamic power consumption.

Andreas Spiess video measuring ESP32's

This is a strange question, you are setting it.

Why don't you trust the settings?

If you put the NRF24 in a tight loop sending packets continuously you can measure the RF output on a spectrum analyser.

Maybe you could say what it is your are actually trying to check ?

Range not good, antenna is checked and 100% ok. i buy modules from aliexpress and sometimes they have a range of about 500 sometimes 800 but sometimes barely 150m. All settings are always the same. The same electronics. nrf modules not same, number on chip is ok, range not.

You have answered you own question. Always buy from a reputable source and buy in bulk and require the seller to ensure all those you are buying are from the SAME production run.

Ok, everything is clear but i have about 90 modules, i have to measure everyone's range, i made a circuit from this link so i will test all the modules tomorrow.

There is little point in measuring the transmit current then, for range testing\conformation you need to know the actual transmit power.

You can measure the actual RF power on the LNAPA modules and then use that to compare the range of the modules with the PCB trace antennas, but its not an easy task.

If a 'good' module has a range of 500m to 800m and another has a range of 150m, assume its bad, there are unlikley to be magic voodoo settings that will make a bad module good.

If its important that you have a reliable long range, then dont use 'cheap' modules.

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