nRF5 action!
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@Mike_Lemo said in nRF5 Bluetooth action!:
@d00616 It says there NFC is not useable but what if my board is NFC hardware ready? how would I use that?
It's simple. Use that. NFC isn't enabled or disabled by the board definition. Without SoftDevice, you have to enable the NFC functionality by flashing into the UICR.
You can define your own Board. Look into the "boards.txt" file and the "variants" folder in ~/.arduino15/packages/sandeepmistry/hardware/nRF5/0.3.0/ Most pins can be assigned to roles like SPI, I2C, UART.... Pins like NFC, RESET are fixed and analog Pins an be ordered like your needs.
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@Mike_Lemo said in nRF5 Bluetooth action!:
@NeverDie where can that boards.txt file of the NRF52 thing be found?
On the Windows platform it's located in this directory: Program Files/Arduino/hardware/arduino/avr
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@Mike_Lemo said in nRF5 Bluetooth action!:
@NeverDie where can that boards.txt file of the NRF52 thing be found?
On the Windows platform it's located in this directory: Program Files/Arduino/hardware/arduino/avr
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I added the two caps that Scalz suggested for DEC1 and DEC2, but I'm still getting the same error message as before when I try to program it using the DK. Unless someone has further ideas, I may have to wait two weeks for my breakout board to arrive before I do more, as right now I'm just deadbugging this by soldering wires directly to the module.
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@Mike_Lemo said in nRF5 Bluetooth action!:
@NeverDie I can't see the Generic nrf52 board setting
That's all I know, so hopefully someone who knows more can chime in and offer you guidance.
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BTW, here's a picture of how the silkscreen looks and which shows DEC1 in the "DEC5" location:
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@Mike_Lemo said in nRF5 Bluetooth action!:
@NeverDie I can't see the Generic nrf52 board setting
That's all I know, so hopefully someone who knows more can chime in and offer you guidance.
@NeverDie said in nRF5 Bluetooth action!:
@Mike_Lemo said in nRF5 Bluetooth action!:
@NeverDie I can't see the Generic nrf52 board setting
That's all I know, so hopefully someone who knows more can chime in and offer you guidance.
Oh, I see now that @d00616 already has. Sorry, my browser didn't refresh, so I missed seeing his post.
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Also If I want to change the UART pins to other pins would it work without errors or If I want to use 2 or more UARTS? same with I2C
Also what are the debugging options available sins the RS232 is not connected to the MCU like in an arduino how would I set stop points or peek at variables values to see if the code runs as expected?
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@Mike_Lemo said in nRF5 Bluetooth action!:
you should follow this schematic design if you want to get this module working.
There's a bunch of similar looking schematics in the nRF52832 datasheet for the nRF52832 chip itself, but I'm not sure which of them, if any, is applicable to the Ebyte module. I guess maybe Ebyte needs a demo board schematic like Raytac has. Either that, or we need a schematic of what's on the Ebyte module itself. As it stands, I think maybe there's no enough info with which to move ahead on wiring up the Ebyte module. Am I wrong? Come to think of it, I think some of the other Chinese modules I ordered from Aliexpress may also be similar "mystery" modules. :(
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Also If I want to change the UART pins to other pins would it work without errors or If I want to use 2 or more UARTS? same with I2C
Also what are the debugging options available sins the RS232 is not connected to the MCU like in an arduino how would I set stop points or peek at variables values to see if the code runs as expected?
@Mike_Lemo said in nRF5 Bluetooth action!:
Also If I want to change the UART pins to other pins would it work without errors or If I want to use 2 or more UARTS? same with I2C
The Chip has a lot of periphery on it. You can connect most components to pins. There is only one hardware UART, which can be connected. Please look at the Infocenter The arduino-nrf5 port is limited to things are implemented with arduino-samd by the author. This is the reason I have implemented an extension for hwPinMode() in MySensors.
Another fine thing is the implementation of Shortcuts and the PPI. You can do a lot without using the CPU.
@Mike_Lemo said in nRF5 Bluetooth action!:
Also what are the debugging options available sins the RS232 is not connected to the MCU like in an arduino how would I set stop points or peek at variables values to see if the code runs as expected?
Debugging depends on your programmer and flashing tool. I think you can start by search for "openocd gdb". OpenOCD is the flashing tool in arduino-nrf5 for all supported programmers.
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It looks as though raytec does make two modules for the nRF52832 that has a PCB antenna rather than a chip antenna: the MDBT42Q-P and the MDBT-42V-P:
http://statics3.seeedstudio.com/assets/file/bazaar/product/MDBT42Q-Version_B.pdf
The MDBT-42V-P looks nice because of its small size. Anyone know where it can be purchased? All of a sudden, buying a module that comes with a proper datasheet seems appealing. -
It looks as though raytec does make two modules for the nRF52832 that has a PCB antenna rather than a chip antenna: the MDBT42Q-P and the MDBT-42V-P:
http://statics3.seeedstudio.com/assets/file/bazaar/product/MDBT42Q-Version_B.pdf
The MDBT-42V-P looks nice because of its small size. Anyone know where it can be purchased? All of a sudden, buying a module that comes with a proper datasheet seems appealing. -
@Mike_Lemo said in nRF5 Bluetooth action!:
@NeverDie I had mine from seeed studio
This one? https://www.seeedstudio.com/MDBT42Q-nRF52832-based-BLE-module-p-2736.html
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I was just now noticing that Nordic has a very convenient list of third party modules (and their dimensions) that use the Nordic nRF52832 chips: https://www.nordicsemi.com/eng/Products/3rd-Party-Bluetooth-low-energy-Modules
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FWIW, I just now sent an email to support@cdebyte.com requesting either a schematic of their E73-2G4M04S module itself or a schematic for a demo circuit, so that I may be certain about adding the appropriate hardware needed to get their module to work. I'll post if I hear anything back from them.
By the way, in the case of Raytac, they even have their own demo board: https://raytac.blog/2017/01/24/how-to-use-raytac-mdbt42q-nordic-nrf52832-demo-board/
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I saw this in the MDBT42Q module datasheet, and perhaps it explains the relatively poor performance of the nRF52832 Adafruit Feather which uses the MDBT42Q.:
I believe the Adafruit may have a much smaller ground plane than what is being recommended here by Raytac. -
FWIW, I just now sent an email to support@cdebyte.com requesting either a schematic of their E73-2G4M04S module itself or a schematic for a demo circuit, so that I may be certain about adding the appropriate hardware needed to get their module to work. I'll post if I hear anything back from them.
By the way, in the case of Raytac, they even have their own demo board: https://raytac.blog/2017/01/24/how-to-use-raytac-mdbt42q-nordic-nrf52832-demo-board/
I requested the schematic for the cdebyte module too...but they replied: it's confidential - LOL.
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I requested the schematic for the cdebyte module too...but they replied: it's confidential - LOL.
@mtiutiu
How long did it take them to reply to you?I guess we may have to reverse engineer what they did then--at least roughly--in order to use it. I'll see if I can pry the cover off and photograph what's inside. If I'm successful, then I'll post the photos so we can all look at it together.
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@mtiutiu
How long did it take them to reply to you?I guess we may have to reverse engineer what they did then--at least roughly--in order to use it. I'll see if I can pry the cover off and photograph what's inside. If I'm successful, then I'll post the photos so we can all look at it together.
