Grand Central and Wio Terminal

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GaryPdot
 
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Grand Central and Wio Terminal

Post by GaryPdot »

I am looking to communicate between My Grand Central and Wio Terminal wirelessly using the Wio's built in Bluetooth. If one of the awesome Adafuitians could recommend a Bluetooth module to use with my grand central board. I would be very happy. Hopefully something in stock, with libraries etc.

A little background of my experience: Although a newbie to the Arduino platform, I have been programming micro's for a few decades, including Stamp, Pic, and Psoc. I mostly wrote my own drivers, and directly controlled interrupts, timers and comm ports. I fully understand UART, SPI, and I2c communication, having bit-banged each of them when there wasn't a comm port. But This will be my first dive into wireless, so here I am. ;)
Another tidbit you may find interesting. My first programming experience was an Apple II in the late '70s, when I was in High school. My brother and I taught ourselves AppleSoft basic and 6500 assembly language.

anyway, be awesome to one another
Gary P.

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GaryPdot
 
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Re: Grand Central and Wio Terminal

Post by GaryPdot »

oopsy, the Wio Terminal has a Realtek RTL8720 wireless core.

thanks in advance
Gary P.

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adafruit_support_mike
 
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Re: Grand Central and Wio Terminal

Post by adafruit_support_mike »

The Wio Terminal only works as a BLE peripheral, and there's no simple add-on that will make a Grand Central work as a BLE central device.

For reference, Bluetooth splits devices into 'central' and 'peripheral' categories. Central devices initiate and control all data connections. Peripherals emit packets that advertise their presence, but otherwise wait for a central to connect and tell it what to do. Peripherals can't talk to each other, and with the exception of some low-level collision avoidance, a peripheral doesn't know other peripherals even exist.

The only microcontroller we have that works as a BLE central is the nRF52840:

https://www.adafruit.com/product/4062
https://www.adafruit.com/product/4516
https://www.adafruit.com/product/4481

You can use a Serial connection to make an nRF52840 talk to a Grand Central, but that's about your only option.

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