PSoC™ 4 Forum Discussions

Hi everyone 

i have built a custom pcb with cycble module connected to a bme280 over i2c. If I program the BLE module with a sample 'findme' program, all works well as in on my iOS device running cysmart I can see and interact with device. However if I make my own custom Bluetooth profile, I can never get it to show in cysmart. Now I know it is down to my configuration but I just can't get a custom config to work to show the temp/pressure/humidity from the bme280? Anyone any help maybe a working custom config? I just can't get me head around configuring this feature of the cycble module

thank you in advance for any help

regards

paddy

Could you please answer some newbie questions

1. It is my understanding that paring is a process in which 2 devices communicate over a connection that is established after a passkey has been exchanged. Bonding is a process where the passkey is saved so next time devices connect they don't have to exchange the passkey and the connection is established quicker.

Here is where I have a disconnect: The GAP settings tab of the BLE component  has options  to disable pairing/bonding and yet it's possible to establish communication with various services that a device has and read and write data to/from various characteristics.

So am I correct in assuming that pairing and bonding are only for security purposes?

What about advertising (i.e beacon functionality) ?

How does pairing/bonding affect advertising?

Related questions

1. How many unpaired/unbonded connections can a client ( i.e iOS and Android ) can have?

2. How many paired and bonded connections?

3. Same question regarding the BLE component itself

Thank you

Andy

Hi,

I am working on an application(Street lighting) wherein we want to cover a lot of distance using BLE(few hundreds of meter). So we are using the long range BLE(CYBLE224110). But here one to one communication wont work due to distance. Hence I am trying to implement multihop implementation where a packet is sent from module 1 to module 2, module 2 to module 3, module 3 to module 4 and when the packet has finally reached the module 4, the response is send back from module 4 - 3 - 2 - 1. Here latency is not much of an issue but would still like to optimize to best possible solution.

So what I have done is, use the custom profile project which behaves as both central and peripheral. Each module will switch between central and peripheral on timely manner. Whenever module 1 has a packet, it will connect to module 2 as a master. Here the connection is done based on the BD address check. After the connection, packet is sent in the form write characteristics. Then when module 1 receives a GATTC_WRITE_RESP, I disconnect and do this same process with module 2 and module 3. This way packet is propagated till module 4. And for response, the same process is repeated and response packet is sent back to module 1. The response is received here, but after some delay.

So my question is, is there a way to optimize this solution and reduce the latency? Also if there are some working mesh network example on the PSoC 4200 BLE part projects which builds with the latest creator, that would help.

Thanks

Pramod

HI,

I'm trying to data transfer test between  heart_rate_monitor and heart_rate_collector.

Sometimes the heart_rate_collector side send NACK to the  heart_rate_monitor side.

According to my investigation so far,

the retransmit ratio  fluctuates according to the  rr-intrval value of  heart_rate_monitor side.

Please tell me the role of rr-interval?

best regards,yoshizu

Hi, I have new Pioneer Kit CY8CKIT-042-BLE-A. I can build any examples and program the BLE PSoC chip without any problem. All is work as expected. Excluding the debugging. When I try to run debug session I get next error:

Debugger exited unexpectedly during run. Encountered error (Target disconnected See output window for more information.)
There was an unhandled error during the debug session. This has forced the debugger to shutdown. Try again.

Output listing of building and debugging :
 
Programming started for device: 'PSoC 4200 BLE CY8C4248LQ*-BL583'.
Device ID Check
Erasing...
Programming of Flash Starting...
Protecting...
Verify Checksum...
Device 'PSoC 4200 BLE CY8C4248LQ*-BL583' was successfully programmed at 04/22/2017 21:41:24.
Continuing target program
=thread-group-exited,id="i1"
Error: dbg.M0015: Debugger exited unexpectedly during run.  Encountered error (Target disconnected See output window for more information.)
 CANCEL

At the same time using the same USB cable on the same computer and the same PSoc Creator I do not have any problem with debugging session of other not BLE PSoCs. 

I did even turn off sleep mode for using USB port but with zero result.

Also I did try to debug on another computer and did get the same error.

I cannot start debug session and with PRoS module (black, is second in kit).

And of course I have updated firmware of base plate. 

I am absolutely new in Cypress PSoC so do not have any ideas about resolving this situation.

Thank you for help.

The EZ-BLE PRoC Module datasheets make no distinction between the 012011-00 and the 012012-10 except that the 012012-10 is missing its RF shield and is not certified by Bluetooth SIG or regulatory agencies (aside: there's a typo on the datasheet, it says "refulatory").

What practical effect does not having the shielding have for development purposes?  I ask because I am having problems reliably connecting to my BLE application running on my prototypes running the 012012-10, and I don't have a 012011-00 version to compare against.

I expect that from an EMI standpoint, the unshielded module would do worse; but should it otherwise functional reliably for connecting to BLE central device over a short distances (on the desk)? Or is the shield crucial to the performance of the module itself and that alternate shielding requirements expected?