Abstract —The JDY-40 is a low-power, half-duplex 2.4 GHz transceiver module offering simple UART-based communication for Arduino projects. Unlike complex protocols like nRF24L01, JDY-40 uses transparent serial transmission with automatic pairing and frequency hopping. This paper presents hardware connections, example code for point-to-point communication, range testing results, and use-case analysis. The module is ideal for short-range (≤100m) wireless sensor networks, remote controls, and data logging.
Send these commands to both modules (Master and Slave): jdy40 arduino example best
If you have searched for “JDY40 Arduino example best” , you are likely frustrated with vague datasheets and broken English translations. This article will provide you with the definitive guide to wiring, coding, and optimizing the JDY-40 for real-world projects. The JDY-40 is a compact Bluetooth Low Energy
// Feature Flag: Set to true once we configure the module bool isConfigured = false; If you have searched for “JDY40 Arduino example
is a highly versatile, low-cost 2.4GHz wireless serial port module. Unlike Bluetooth, it uses a proprietary 2.4G protocol, making it faster for simple point-to-point communication between Arduinos with a range of up to 120 meters. Key Technical Specs Operating Voltage : 2.2V - 3.6V (Use a 3.3V regulator; it is 5V tolerant on VCC). : Standard Serial (UART).
VCC: 2.2V – 3.6V (Use a 3.3V supply; do not use 5V directly). CS Pin: Pull to GND to keep the module awake.
The Go to product viewer dialog for this item. is a 2.4GHz wireless serial transceiver module that acts as a "wireless USB cable," making it much easier to use than the NRF24L01 because it handles the complex radio protocol internally. You simply send and receive data using standard UART (Serial) commands. Quick Setup & Best Wiring
#include <SoftwareSerial.h>