# 200 questions

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## Converting incoming messages to Unicode.

I have successfully managed to communicate back and forth ( message ,Temp and Humidity data) between Two Arduino Nano using NRF24L01 module. However when I am trying to receive the same block of information in Raspberry Pi3 it is not converting ... (more)

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## Development of Non-Arduino-Based Applications

Hi. I'm new to both the nRF24L01+ and to this forum.

I'm intrigued by the prospect of using these amazing little transceivers as RF modems. Because I find elements of the device's datasheet to be difficult to ... (more)

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## nRF24L01 more faster

Dear sirs Good evening !

I´m using the RF24.h library in order to develop a system that comunicates in peer-to-peer mode.

When I transmit 3 bytes towards a receiver, it spends 806us, in simplex mode.

In half-duplex mode, the ... (more)

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## How to understand this specification item?

I am dealing with the nRF24L01 to develop a remote controller. When I read the specification, I found a specification item, called C/ICO, with a typical value of 12dB in the @2Mbps case. How can I understand this item ... (more)

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## PCB size for nRF module

Hello, I have designed a PCB (25mmx55mm) and placed the nRF24l01 module (available as a standard add on module). But I am unable to get the data out of the board. I have tried the same design with the board ... (more)

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## Smps and nrf24l01

Is anybody have any experience powering nrf24l01 with smps stepdown converter?..i have trouble using fr9702 as 3.3 volt supply for nrf..the problem is..nr24L01 cant received any radio data..but no problem with the transmiting functionality..but ... (more)

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## Does it make sense that Tx messages with ack fail more than messages sent with no ack?

Can the link between two devices communicating with each other via NRF24L01+ be improved by using Tx messages with no ack (W_TX_PAYLOAD_NO_ACK) instead of messages with ack (W_TX_PAYLOAD)?

In my tests more errors have occurred when Device A communicates with ... (more)

35
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## RF communication data error detection

Hi.

I have RF communication between nRF24L01 + and nRF24LU1 +.

Incorrect data is transmitted occasionally during communication. So, I want to use CRC, but when CRC is enabled, communication is not possible. (Register setting = EN_CRC : 1, CRCO : 0or1)

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## nRF24L01+,nRF24LU1+ receiving sensitivity

I am communicating between nRF24LU1 + and nRF24L01 +.

Are there any registers or methods for receiving sensitivity from 01+ or U1 +?

The data sheet tells us that the receiving sensitivity is better depending on the transmission speed, but we have not ... (more)

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## nrf24l01 + mcu

Hello, you great people! I'm working on a simple project where a transmitter wakes up a receiver and it's working just fine. Currently working with NRF24LE1 modules. The Receiver is in Register retention mode and when an interrupt ... (more)

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## NRF24L01+ Back-to-back transmission

I found strange behavior when using back-to-back packet transmission.

Configuration of PTX/PRX is:

No Auto-ACK (disabled)
CRC 2 bytes
Packet length 13 bytes


Some time back-to-back transmission of two packets with random ... (more)

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## Communication stopped between NRF24L01

I have been using two NRF24L01 to communicate with each other using just simple Arduino Uno Board. it worked for 5 days and now all of a sudden it is now working. I tried to change the modules and the ... (more)

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## nrf24l01 is too slow to send a string from Raspberry pi to Arduino?

using the sample code at

i am able to use nrf24l01 to communicate raspberry pi with arduino, but the problem is the timing. I found it takes > 20 ms to send a very simple string ... (more)

41
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hello,we use nRF24l01+ for the communication of IoT,nRF24l01+ need to receive CMD from the controllors,but after a long time,nRF24l01+ cannot receive data.

we have tested,the following is the information related: (1)the supply voltage of ... (more)

56
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## 328P does not wakeup when PRX IRQ is asserted by NRF24L01

Has any-one been successful waking up a sleeping 328P via a NRF24L01 PRX IRQ interrupt?? My scenario is as below. Establishing a two way communication between two arduino boards. One is a central-panel and the other is a node with ... (more)

51
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1
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## nRF24L01+ as TX / nRF52 as RX no received event

Hi,

I have done some reverse eng on a nrf24l01+ emitters using spi spy and managed to catch datas using an arduino leonardo + nrf24l01+ using the following register setup:

const byte addr[5] = {0x30, 0x26, 0xDA, 0x91, 0xD3};
radio.write_register ...
(more)

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## nrf24l01 multiple (a lot of) receivers, 1 transmitter

Hi, I am considering using nRF24L01 for a project, and I wanted to use one single transmitter to send data to various receivers (more than 6).

I have found some information on the net about a nRF24L01 being able to ... (more)

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## nRF24L01 Ack issue / tx giving max_rt error / PIC18F25K20

Hi,

I am having problem with setting up TX side of my project. It always giving me max_rt error if I am sending only once per cycle. 1 Cycle is every 30seconds. All working fine without ACK enabled, with ACK ... (more)

126
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I am trying to decide what Nordic solutions would best support the application throughput requirements seen below. Distance requirements are low (1 meter each link).

I was planning to use proprietary 2.4 GHz for links (1,3) and (2 ... (more)

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## nRF24L01 IRQ pin jitter on two modules in RX mode

Hello! I try to use three modules with chip nRF24L01 to syncronize two slave devices by one master device without wires. Required accuracy is about 10 nanoseconds. My idea is to send packet by master module, receive it by slave ... (more)

111
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## nRF24L01 firmware update

I have nRF6310, nRF2727.

1) I wonder if I can update the nRF24L01 firmware with the above board.

2) I wonder if there are any additional devices or other methods.

thank you.

171
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## Can I get some clarification regarding pipes and addresses?

Hi,

I've asked a few questions previously regarding programming of the nRF24L01/+ for simple data interchange between two devices, and my questions were answered -- many thanks.

However I still don't seem to be able to get a PTX ... (more)

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## nRF24L01+ Multi Tx, Single Rx Throughput Issues

We are using your nRF24l01+ chip in one of our products. we are using 1 nRF as receiver and 5 nRF's as transmitters.

While trying to use the chip with multiciever configuration, the receiver is not getting the data ... (more)

1k
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1
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3

## nRF24L01+ determine model number or if fake

Hi,

I wrote my own nRF24L01+ library for my AVR AtMega2560. I used the datasheet and the widely used Mirf library as my guide. I am happy to say I got it working. I have a a few questions. I ... (more)

302
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## Genuine nRF24L01+

Hi, is there any way to determine if a nRF24L01+ IC, is genuine?

299
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## want nrf24l01 communication with nrf51822 [closed]

hello,will you please tell me which code i have to use in the sdk 12.2.0 for rf communication with nrf51822 and nrf24l01 .and also tell me which settings i have to do for nrf24l01 side as a ... (more)

131
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## nRF24L01+ -> nRF24LU1+ RF communication.

HI.

I want to send data from nRF24L01 + to RF communication and receive it from nRF24LU1 +. The nRF24L01 + is connected to the STM32. The settings are as follows.

nRF24L01+ code

#if (DEMO_TX_SINGLE)

// The transmitter sends a 5-byte packets to the ...
(more)

1k
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## what's the maximum datarate of nrf24l01+ ?

what's the maximum data rate of nrf24l01+ (with ACK and without ACK) using 2 nrfs?

if i use 4 nrf24l01 two in tx side and two in rx side.what would be the maximum data rate?

in Transmitter side ... (more)

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Hi folks,

I'm trying to write a program to check out a pair of nRF24L01p modules talking to each other, and I'm a bit confused about two aspects of initialisation: 1. Should you have the 'PWR_UP' bit in ... (more)

76
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1

## nrf2401+ replacement with NRF52832 via SPI

I have an arduino mega based design working with nrf24L01+ via SPI. As certification is the next step, I found a NRF52832 based module that would meet all certification requirements. Is it possible to just drop that module in and ... (more)

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