Return to Question

improved formatting

edit approved May 17, 2021 at 10:34

My connections are: Laptop -> Arduino UNO, MB-102(USB to breadboard power adapter)
Arduino UNO(without IC) Rx -> Pro mini Tx0
Arduino UNO(without IC) Tx -> Pro mini Rx1
Arduino UNO(without IC) RESET -> Pro mini Rst
MB-102 5V -> Pro Mini Pin RAW
MB-102 GND -> Pro Mini Pin GND
Pro Mini Pin 2 -> AT 09 TXD
Pro Mini Pin 3 -> AT 09 RXD
Pro Mini Pin VCC -> AT 09 VCC
Pro Mini Pin GND -> AT 09 GND

Laptop -> Arduino UNO, MB-102(USB to breadboard power adapter)
Arduino UNO(without IC) Rx -> Pro mini Tx0
Arduino UNO(without IC) Tx -> Pro mini Rx1
Arduino UNO(without IC) RESET -> Pro mini Rst
MB-102 5V -> Pro Mini Pin RAW
MB-102 GND -> Pro Mini Pin GND
Pro Mini Pin 2 -> AT 09 TXD
Pro Mini Pin 3 -> AT 09 RXD
Pro Mini Pin VCC -> AT 09 VCC
Pro Mini Pin GND -> AT 09 GND

#include<SoftwareSerial.h> SoftwareSerial ble(2, 3); int statePin = 4; char c; void setup() { Serial.begin(9600); ble.begin(9600); ble.print("AT\r\n"); delay(100); while(!ble.available()) Serial.print("."); while(ble.available()) { Serial.print(char(ble.read())); } } void loop() { while(ble.available() > 0) { c = char(ble.read()); delay(10); Serial.print(c); ble.print(c); } }

#include<SoftwareSerial.h> SoftwareSerial ble(2, 3); int statePin = 4; char c; void setup() { Serial.begin(9600); ble.begin(9600); ble.print("AT\r\n"); delay(100); while(!ble.available()) Serial.print("."); while(ble.available()) { Serial.print(char(ble.read())); } } void loop() { while(ble.available() > 0) { c = char(ble.read()); delay(10); Serial.print(c); ble.print(c); } }

#include<SoftwareSerial.h> SoftwareSerial ble(2, 3); int statePin = 4; char c; void setup() { Serial.begin(9600); ble.begin(9600); ble.print("AT\r\n"); delay(100); while(!ble.available()) Serial.print("."); while(ble.available()) { Serial.print(char(ble.read())); } } void loop() { while(ble.available() > 0) { c = char(ble.read()); delay(10); Serial.print(c); ble.print(c); } }

My connections are:

Laptop -> Arduino UNO, MB-102(USB to breadboard power adapter)
Arduino UNO(without IC) Rx -> Pro mini Tx0
Arduino UNO(without IC) Tx -> Pro mini Rx1
Arduino UNO(without IC) RESET -> Pro mini Rst
MB-102 5V -> Pro Mini Pin RAW
MB-102 GND -> Pro Mini Pin GND
Pro Mini Pin 2 -> AT 09 TXD
Pro Mini Pin 3 -> AT 09 RXD
Pro Mini Pin VCC -> AT 09 VCC
Pro Mini Pin GND -> AT 09 GND

#include<SoftwareSerial.h> SoftwareSerial ble(2, 3); int statePin = 4; char c; void setup() { Serial.begin(9600); ble.begin(9600); ble.print("AT\r\n"); delay(100); while(!ble.available()) Serial.print("."); while(ble.available()) { Serial.print(char(ble.read())); } } void loop() { while(ble.available() > 0) { c = char(ble.read()); delay(10); Serial.print(c); ble.print(c); } }

Source Link

asked May 17, 2021 at 7:17

Flight64

AT 09 BLE module not transmitting data

I have recently started working with the Arduino Pro Mini 5v/16Mhz and an AT 09 BLE module for an IoT project. I am controlling the BLE module using Software Serial and am leaving the hardware serial for for my laptop. I am using an app called "Serial Bluetooth Terminal" on Android to send/receive messages. The BLE module is able to receive messages and the "AT" command is also working. But when I try to get the BLE module to send a message, I get no response in the app. Any idea why this is happening and how can I resolve it?

This is my code:

#include<SoftwareSerial.h> SoftwareSerial ble(2, 3); int statePin = 4; char c; void setup() { Serial.begin(9600); ble.begin(9600); ble.print("AT\r\n"); delay(100); while(!ble.available()) Serial.print("."); while(ble.available()) { Serial.print(char(ble.read())); } } void loop() { while(ble.available() > 0) { c = char(ble.read()); delay(10); Serial.print(c); ble.print(c); } }

This is the first time I am posting here so please tell me if I missed out on any information.

arduino-pro-mini ble