Android Question BLE (Bluetooth) and Baud rate

i wonder how i can change the baud rate if me using this ble library.

9600 works but i will use 115200 baud.

 

BLE itself has no baud rate interface, just packets. Unless you're using one of those HM10/HC08 BLE-to-serial adapter things, which would ferry bytes to/from the UART from/to your Android device in blocks of up-to-20 bytes. But note the bytes-per-second limits table in the datasheet, it was quite (s)low (relative to 115200 baud).

 

i am using "DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Modul mit 4 PIN Base Board für Arduino UNO R3 Mega 2560 Nano"
i will see what happens if me change the baud rate in the arduino ide Serial.begin(115200)

 

If its based off of the Nordic nRF Chip, you can download the UART example project, and purchase a SEGGER kit, then modify the firmware to increase the maximum transfer width. I have mine at the maximum theoretical size of 128 bytes per transfer.

 

Super! The HM-10 was the original one, with factory support; the HC-08 et al are clones, with the usual level of pirated-firmware support.

This blog posting was helpful: http://www.martyncurrey.com/hm-10-bluetooth-4ble-modules/

I have been looking for the table of maximum bytes-per-second throughput, but can't find it. I thought it was in one of the datasheets.

 

ahh, it is not just Serial.begin(...)
i need to set the new baud rate with at commands in this HT-10 Modul.
AT+BAUD4 =115200

Test with AT+BAUD?
should return OK+Get:0 (0 to 8) in case of 115200 a 4

from web

 

i just change the baud at arduino and it works. data came to my b4a app with 115200
i changed also to softwareserial so that i can use also the usb connection at uno board to pc.

 

omg
arduino via bluetooth to phone is a game of pure chance.
... software serial need a lower baud rate. 38400 seems ok.
best choice is the hardware serial but uno have only one that used the usb to pc too.