HM-10/CC41 talk to BLE server











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I've done a lot of searching but have yet to find any examples of the data format for accessing a simple BLE characteristic. I have a CC41 (HM-10 clone) that I have set to master mode and successfully connected to a BLE server device using a PC terminal program and the AT commands. I now want to send the proper data to access a service such as Immediate Alert (0x1802) and it's Alert Level characteristic (0x2A06). I know the full service and characteristic UUIDs and the data value for turning the alert on/off. I can do so from the nRF phone app but it doesn't tell me the data protocol that is actually sent from the app. I assume that the UUID needs to be sent as hex data, not a string, but nothing I've tried so far works. If the phone app can do it, then I would think that I can do it manually as well. Any ideas?






bluetooth-lowenergy gatt hm-10







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  • So you want to access the GATT characteristics from your PC, is that correct?
    – Florian Echtler
    Nov 12 at 9:30










  • No, I am using my PC terminal program to send commands and data to a CC41 (HM-10) device which is connected by BLE to a server device. I am trying to figure out the format of the GATT commands to send, similar to what my phone app (nRF) sends when it is connected to the server device.
    – Boomer48
    Nov 12 at 19:43















up vote
0
down vote

favorite












I've done a lot of searching but have yet to find any examples of the data format for accessing a simple BLE characteristic. I have a CC41 (HM-10 clone) that I have set to master mode and successfully connected to a BLE server device using a PC terminal program and the AT commands. I now want to send the proper data to access a service such as Immediate Alert (0x1802) and it's Alert Level characteristic (0x2A06). I know the full service and characteristic UUIDs and the data value for turning the alert on/off. I can do so from the nRF phone app but it doesn't tell me the data protocol that is actually sent from the app. I assume that the UUID needs to be sent as hex data, not a string, but nothing I've tried so far works. If the phone app can do it, then I would think that I can do it manually as well. Any ideas?






bluetooth-lowenergy gatt hm-10







share|improve this question






















  • So you want to access the GATT characteristics from your PC, is that correct?
    – Florian Echtler
    Nov 12 at 9:30










  • No, I am using my PC terminal program to send commands and data to a CC41 (HM-10) device which is connected by BLE to a server device. I am trying to figure out the format of the GATT commands to send, similar to what my phone app (nRF) sends when it is connected to the server device.
    – Boomer48
    Nov 12 at 19:43













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I've done a lot of searching but have yet to find any examples of the data format for accessing a simple BLE characteristic. I have a CC41 (HM-10 clone) that I have set to master mode and successfully connected to a BLE server device using a PC terminal program and the AT commands. I now want to send the proper data to access a service such as Immediate Alert (0x1802) and it's Alert Level characteristic (0x2A06). I know the full service and characteristic UUIDs and the data value for turning the alert on/off. I can do so from the nRF phone app but it doesn't tell me the data protocol that is actually sent from the app. I assume that the UUID needs to be sent as hex data, not a string, but nothing I've tried so far works. If the phone app can do it, then I would think that I can do it manually as well. Any ideas?






bluetooth-lowenergy gatt hm-10







share|improve this question













I've done a lot of searching but have yet to find any examples of the data format for accessing a simple BLE characteristic. I have a CC41 (HM-10 clone) that I have set to master mode and successfully connected to a BLE server device using a PC terminal program and the AT commands. I now want to send the proper data to access a service such as Immediate Alert (0x1802) and it's Alert Level characteristic (0x2A06). I know the full service and characteristic UUIDs and the data value for turning the alert on/off. I can do so from the nRF phone app but it doesn't tell me the data protocol that is actually sent from the app. I assume that the UUID needs to be sent as hex data, not a string, but nothing I've tried so far works. If the phone app can do it, then I would think that I can do it manually as well. Any ideas?






bluetooth-lowenergy gatt hm-10




bluetooth-lowenergy gatt hm-10






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asked Nov 10 at 21:13









Boomer48

1




1












  • So you want to access the GATT characteristics from your PC, is that correct?
    – Florian Echtler
    Nov 12 at 9:30










  • No, I am using my PC terminal program to send commands and data to a CC41 (HM-10) device which is connected by BLE to a server device. I am trying to figure out the format of the GATT commands to send, similar to what my phone app (nRF) sends when it is connected to the server device.
    – Boomer48
    Nov 12 at 19:43


















  • So you want to access the GATT characteristics from your PC, is that correct?
    – Florian Echtler
    Nov 12 at 9:30










  • No, I am using my PC terminal program to send commands and data to a CC41 (HM-10) device which is connected by BLE to a server device. I am trying to figure out the format of the GATT commands to send, similar to what my phone app (nRF) sends when it is connected to the server device.
    – Boomer48
    Nov 12 at 19:43
















So you want to access the GATT characteristics from your PC, is that correct?
– Florian Echtler
Nov 12 at 9:30




So you want to access the GATT characteristics from your PC, is that correct?
– Florian Echtler
Nov 12 at 9:30












No, I am using my PC terminal program to send commands and data to a CC41 (HM-10) device which is connected by BLE to a server device. I am trying to figure out the format of the GATT commands to send, similar to what my phone app (nRF) sends when it is connected to the server device.
– Boomer48
Nov 12 at 19:43




No, I am using my PC terminal program to send commands and data to a CC41 (HM-10) device which is connected by BLE to a server device. I am trying to figure out the format of the GATT commands to send, similar to what my phone app (nRF) sends when it is connected to the server device.
– Boomer48
Nov 12 at 19:43

















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