MarkusR Well-Known Member Licensed User Longtime User Apr 10, 2019 #1 i wonder how i can change the baud rate if me using this ble library. 9600 works but i will use 115200 baud.
i wonder how i can change the baud rate if me using this ble library. 9600 works but i will use 115200 baud.
E emexes Expert Licensed User Longtime User Apr 10, 2019 #2 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). Upvote 0
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).
MarkusR Well-Known Member Licensed User Longtime User Apr 10, 2019 #3 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) Upvote 0
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)
techknight Well-Known Member Licensed User Longtime User Apr 10, 2019 #4 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. Upvote 0
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.
E emexes Expert Licensed User Longtime User Apr 10, 2019 #5 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. Last edited: Apr 10, 2019 Upvote 0
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.
MarkusR Well-Known Member Licensed User Longtime User Apr 10, 2019 #6 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 Default baud rate pre firmware V700 is 9600 Default baud rate firmware V700 and up is 115200 Click to expand... Last edited: Apr 10, 2019 Upvote 0
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 Default baud rate pre firmware V700 is 9600 Default baud rate firmware V700 and up is 115200 Click to expand...
MarkusR Well-Known Member Licensed User Longtime User Apr 10, 2019 #7 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. Upvote 0
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.
MarkusR Well-Known Member Licensed User Longtime User Apr 10, 2019 #8 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. Last edited: Apr 11, 2019 Upvote 0
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.
