HM-10 sending but not receiving.

Projects Networking, Protocols, and Devices
1

Hallo,

After finally 2 weeks I managed to get some progress with my HM-10 C2541 module.

  1. I followed first this tutorial.

Not all AT commands are working. But I managed to get "OK" when I write AT in the Arduino Serial Monitor and I managed to change the name to BLExAR instead of HMsoft.

2.I followed this tutorial and installed the sketch

#include <SoftwareSerial.h>

SoftwareSerial BTSerial(11, 10);

void setup() {
Serial.begin(9600);
BTSerial.begin(9600);
while(!Serial);
Serial.println("AT commands : OKAY");
}

void loop() {

if(BTSerial.available())
Serial.write(BTSerial.read());

if(Serial.available())
BTSerial.write(Serial.read());

}

With this I can send text from Arduino Serial Monitor to my BLExAR app, but the problem is that I cannot send from my BLExAR to my Arduino Serial Monitor.

What should be the problem?

2

What should be the problem?

What COULD be the problem is the app that is trying to send data TO the Arduino.

3

Hello PaulS,

It seems that BLExAR app is the problem.
After your comment I tried another tutorial where BLE scan is mentioned.

With this tutorial I can communicate between BLE Scan and Serial Monitor.

It's a pitty...BLExAr was €4.99 and BLEscan free