kuman 3 pcs nRF24L01+PA+LNA Antenna Wireless Transceiver RF Transceiver Module for Arduino KY67

I have purchased probably 20 of these total. I would doc half a star if possible because a few have stopped working and had one bad out of box, but when factoring in the price I am very happy. Using them for a home automated blinds project controlled over RF24 2.4 GHz by an Arduino Mega with 3.5 in Kuman touch display for TX and Arduino Uno (Keyestudio brand) for each RX. After much research and experimentation I can provide a few tips. Use an electrolytic capacitor and a .01 uF ceramic capacitor in parallel at the 5V power supply to the 3.3v regulator (be sure and use the regulator - available on Amazon for a few bucks) module that powers the RF24. It smooths out the power and keeps them stable. If your project utilizes servos and only uses 5v 1A usb power adaptors like mine you will need multiple or a good size cap. I found two 2200uF works well. Can be much smaller like 10uF if little current is drawn. Voltage dips when the servos start and noise will cause the RF24 to stop responding and require Arduino reset without them. Attached pic shows one of my receivers for two servos. It works very reliably even with such a small power supply. Also included pics of my code on a receiver Arduino that controls one servo. Trying to give back a bit because others sharing code has really helped me learn. It does not utilize the advanced functions of the RF24 such as Acknowledgments. But at my self taught skill level I have found KISS (keep it simple stupid) gives me a much higher success rate. This code has worked reliably for me on a dozen or so receivers and other RF24 modules in operation for months now to control the servo that moves my blinds over RF24. I 3d printed the board holder and TX housing and gearboxes that mount inside the blinds. Used Creality Ender 3 printer (left a review for it too) and Tinkercad to design the prints. In the end with these my project has been a success. I push one button on touch display and All my blinds (16 total) open or close or move up. Very cool! Threw in a pic of my work in progress controller as well. Had to butcher the antenna and solder it to fit in the controller but uses these RF24 boards too. Raise/lower and nudge is a future project upgrade. Happy Arduinoing!!!!

They all tested great and have given me zero issues so far. The quality seems to be good and I’ll update if I run in to any problems.

Working great transmitting temperature readings using Arduino uno R3. About a 99% rate transmitting from an outdoor shed approximately 20' from the house, going to the receiver through multiple walls in the basement. Also the receiver is 3' away from my wifi router, which isn't causing any receive problems.

Worked well for my project

No issues using these tx/rx's. Using them in conjunction with arduino nano clones and they run great powered on the 3.3v pin on the nano.

Simply did not work at all. Unfortunately I can't rate zero stars.

I bought these intending to use them as transcievers in an RC car project with some arduino nanos, and so far they seem great. while I haven't tested the range yet, they haven't dropped a single packet as long as both have been in the house. the transmission speed is awesome, they can easily send a hundred packets per second (and likely more) if you need it to.My only complaint is that they require a 3.3-volt supply and not a standard 5-volt, but that's easily fixed with a 3.3-volt regulator

I heard some boards made in China have a defect. I like the concept but on an arduino nano it is a no go.

Uno de los dispositivos vino con un pequeño fallo en el rango, lo probé a una distancia de 20 metros y comenzó a fallar pero en general es un producto bueno y con un precio accesible.

Hier wird mit Pluszeichen suggeriert, das es sich um eine PLUS Version handelt.Nicht nett.

12 Module bestellt und 6 haben nicht funktioniert