Review on 📶 Enhanced Wireless Communication with kuman 3 pcs nRF24L01+PA+LNA Antenna Transceiver Module for Arduino KY67 by Chris Hanson

I bought about 20 in total. I would give half a star if possible because some of them stopped working and one of them failed, but considering the price I'm very satisfied. Use them for home auto blind projects controlled by RF24 2.4GHz with Arduino Mega with 3.5" Kuman Touch Display for TX and Arduino Uno (Keyestudio brand) for each RX. After much research and experimentation, I can offer some advice. Use an electrolytic capacitor and a 0.01uF ceramic capacitor in parallel with a 5V supply for a 3.3V regulator module (make sure you use a regulator - available from Revain for a few bucks), which supplies the RF24 with power. This smooths out the performance and keeps it stable. If your project uses servos and only uses 5V 1A USB power supplies like mine, you'll need a couple or a large cap. I've found that two 2200uFs work fine. It can be a lot less, like 10uF if a small amount of current is drawn. The voltage dips and noise at servo start will cause the RF24 to become unresponsive and the Arduino will have to reset without them. The attached picture shows one of my dual servo receivers. It works very reliably even with such a small power supply. Also included are photos of my code on an Arduino receiver controlling a servo. Trying to pay back a little because other people sharing code really helped me learn. It does not use advanced RF24 features like acknowledgments. But with my self-learning skills, I've found that KISS (keep it simple, stupid) gives me a much higher success rate. This code has worked reliably for me on about a dozen RF24 receivers and other modules that have been running for several months to control a servo that moves my RF24 blinds. I 3D printed the board holder, TX case and gears that mount in the shutters. I've used the Creality Ender 3 printer (I also left a review about it) and Tinkercad to design prints. In the end my project was a success. I press a button on the touchscreen and all my blinds (16 in total) open, close or raise. Very cool! Also threw away a photo of my working controller. Had to cut and solder the antenna to fit the controller, but the RF24 uses these boards as well. Raise/lower and push is the future update of the project. Happy Arduino!