Jdy40 Arduino Example Best [ RECENT – 2024 ]

For each JDY-40 module, connect it to its respective Arduino:

Limitations

// Prepare JDY-40 (connected to hardware serial pins 0/1) pinMode(2, OUTPUT); // SET pin digitalWrite(2, LOW); // Enter AT mode (for configuring) // We'll set the channel and ID inside the loop, before each transmission. jdy40 arduino example best

This code receives the data and prints it to the Serial Monitor.

The JDY-40 has several pins. For this best example (transparent serial), we only need a few: JDY-40 Pin Arduino Connection 3.3V3.3 cap V 3.3V3.3 cap V GND RXD UART Receive Pin 3 (Software Serial TX) TXD UART Transmit Pin 2 (Software Serial RX) SET Mode Setting Floating (Running Mode) / GND (AT Command) CS Chip Select Floating (Active) / GND (Sleep) For each JDY-40 module, connect it to its

: Chip select pin. Pull low to enable the module; pull high to enter sleep mode. Technical Specifications Frequency Range : 2.4 GHz Communication Distance : Up to 120 meters in open space Interface : Serial UART

The following example demonstrates a robust, production-ready implementation of a Transmitter and a Receiver setup. It includes basic data structural layout and simple error checking. 1. Transmitter Code For this best example (transparent serial), we only

Common AT commands:

Here is the safe wiring for :

// Detect falling edge (button press) if (buttonState == LOW && lastButtonState == HIGH) jdy40.println("Button Pressed!"); Serial.println("Sent: Button Pressed!"); delay(100); // Debounce