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Results tagged with nrf24l01+
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user 4143
An ultra low-power transceiver for radio communication in the 2.4GHz ISM band (Industrial, Scientific, and Medical). Commonly used by tinkerers because of its low cost and its easy to use SPI interface.
3
votes
Accepted
NRF24 Mixing with/without antenna
Yes, and yes.
A module without an antenna is exactly the same as a module with an antenna, it's just that the antenna is part of the PCB. Yes, the module with the antenna will have more sensitivity ( …
- 106k
3
votes
Accepted
How to remote control Arduino using an old 2.4Ghz toy remote controller?
You have two options:
Use an nRF24L01+ on the Arduino and dismantle the controller to rip out the innards, replacing them with another Arduino and another nRF24L01+.
Do not use the nRF24L01+, instea …
- 106k
2
votes
Accepted
NRF24L01 integrated antenna exposed out of the box
In general no, this would make little or no difference. PVC has very little effect on RF signals.
After all, the antenna on your typical WiFi router is inside a PVC tube and it doesn't suffer from it …
- 106k
1
vote
Problem while connecting two arduino with NRF24L01
Your whole method is completely wrong.
Instead of sending bytes with some unknown meaning at random times you need a far more structured approach to sending your data.
You need to either:
Send the …
- 106k
1
vote
expected initializer before 'RF24'
You have two problems:
sketch_aug20b_rc_rc_rc_22:33:13: error: expected initializer before 'RF24'
void setup()RF24
^
It's basically saying "I don't understand what you mean by RF24 here" …
- 106k
0
votes
Why NRF24L01+ pipe has 5 byte address
I see, that only 6 receivers can be connected with the transmitter,
That depends on how you define "connected". It is only possible for one transmitter to, at any one time, send data to up to 6 …
- 106k
1
vote
nRF24L01 programming issue
Two things:
nRF24L01 is only half duplex. You can't send and receive at the same time. You must send only briefly and then spend some time listening for the response. With no delays there is no time …
- 106k
2
votes
NRF24l01 Channel switching
You're getting confused with number bases. A number prefixed with 0x is hexadecimal. That's base 16 - not base 10.
0x125 is actually 293. If you try squeezing 293 into an 8-bit register it will trunca …
- 106k
5
votes
Accepted
OTA updates for Arduino using nRF24L01+
Your best strategy would be to write your own bootloader.
The existing bootloader receives data through the serial port and writes it, a page at a time, to the flash. Your custom bootloader, instead …
- 106k
1
vote
Accepted
What is the type parameter on the NRF24NetworkHeader member
It's to identify the type of packet. Apparently that code supports types of 0-127, and I guess (impossible to tell without digging into the code) that what you use them for is entirely up to you. Ba …
- 106k
3
votes
Accepted
RF24 tranceivers: trouble with two way communication
The main thing that I can see wrong with your sketch is that the logic of your methodology is backwards.
You are spending most of your time either with the radio asleep, or not in listening mode, so …
- 106k
-1
votes
Air data rate nRF24L01
The documentation for the function you want is here.
Reducing the speed doesn't directly increase the range, but increased stability will have the knock-on effect that the fringes of transmission dis …
- 106k
0
votes
Arduino with nRF24L01
nRF24L01 is a proprietary system, unlike WiFi and Bluetooth. There is only one (official) maker of nRF devices (Nordic Semiconductor).
Yes, they are very nice modules, but why would you spend the tim …
- 106k
2
votes
Accepted
RadioHead library nrf24 sending and receiving struct data problem
Your problem is that you are working with pointers. You have a pointer to a block of memory with some text in it, then you take that pointer, get the address of the variable that stores it, convert i …
- 106k
2
votes
Accepted
NRF24L01 Networking
1) May messages get corrupt or latency ?
For uni-directional Master to One Slave, no, there should be no corruption (at least not caused by there being lots of slaves present). For bi-directional …
- 106k