![]() 5 MISO (Master In Slave Out) It is SPI output from the nRF24L01. It is used to receive data from the microcontroller 4 IRQ It is an interrupt pin that alerts the master when new data is available to process. 3 MOSI (Master Out Slave In) It is SPI input to the nRF24L01. We need to keep this pin high except when we are sending the device an SPI command or receiving data on the SPI bus from the micro-controller. 2 CSN (Chip Select Not) It is an active-LOW pin and is normally kept HIGH. So, we can connect it directly to the 3.3V output of our Arduino. Pin Name Pin Specifications 1 VCC This pin is used to supply power to the module. NRF24L01 pinout and specifications are given below. Its maximum range is up to 100 meters if used in an open space with an antenna. ![]() Power consumption of the module is very low, only 9.0mA at an output power of -6dBm and 12.3mA in RX mode which is even less than a LED. Transceiver means the same module can be used as a transmitter or receiver. Thanks to all those who helped and added to this list.NRF24L01 is a single-chip radio transceiver that uses the 2.4 – 2.5 GHz ISM band world-wide. Scandinavia Swedish, Suomi - Finnish, Norsk - Norwegian.Try a language closer to your native language: Performing the above actions may help resolve your problem without further help. On Windows C:\Users\AppData\Roaming\ArduinoCreateAgent-1.1.On Linux ~/ArduinoCreateAgent-1.1/config.ini.On macOs ~/Applications/ArduinoCreateAgent-1.1/ArduinoCreateAgent.app/Contents/MacOS/config.ini.Boards using a MICRO USB connector need a cable that is both DATA and CHARGE.Unless using EXTERNAL PROGRAMMERS please leave the IDE selection at default “AVRISP mkII”.NANO ( NEW Types) Install your board CORE’s.NANO ( ALL Types) See the specific sections lower in the forum.NANO (Old Types) some require you to use the OLD BOOTLOADER option.CH340/341 based clones do not report useful information to the “get board info” button.Preferably install IDE’s as ADMINISTRATOR or your OS equivalent.Close the IDE before using any other serial programs.Avoid cloud/network based installations where possible OR ensure your Network/Cloud software is RUNNING.You may be selecting the wrong COM port.There may be a problem with the PC try RESTARTING it.Ensure you turn off any additional security / antivirus just to test.Close any other serial programs before opening the IDE. ![]() Remove any items connected to pins 0 and 1.There may be a problem with the board check or remove your wiring first.CH340/341 or CP2102 or FT232 VCP Drivers - FTDI You may not have the correct driver installed.Where possible use USB 2.0 ports or a USB 2.0 POWERED HUB to rule out USB 3.0 issues.Check you have a COMMON GROUND where required.Ensure you have FULLY inserted the USB cables.Remember that the people trying to help cannot see your problem so give as much information as you can.Duplicate accounts are NOT allowed and any extra may be deleted.Add working links to any specific hardware as needed ( NOT links to similar items).Add a SCHEMATIC were needed even if it is hand drawn.Add your sketch where applicable but please use CODE TAGS.How to insert an image into your post.Use quote or CODE tags to add error messages as an attachment NOT a picture.Always list the version of the IDE you are using and the board version if applicable.Your OS and version can be valuable information, please include it along with extra security you are using.Mention if you are using AI generated code it is important information.It will help you get the very best out of the forum in the future. The people who try to help with your project. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is frustrating for you and frustrating for us. Being new here you might think this is having rules for the sake of rules, but that is not the case. Please read and follow the instructions below. This guide explains how to get the best out of this forum. Get the best out of this forum Installation & Troubleshooting Long version.Please take a few moments to Learn and Use the Forum. ![]() OP is on a 7 day holiday until he READS THIS
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