Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

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QuantumPie
 
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Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by QuantumPie »

I'm designing a circuit which consists of a nRF24L01 transceiver and a NeoPixel LED Strip with 3-pin JST PH.

It looks like the Prop-Maker FeatherWing can connect to the LED strip but how can I power and control the transceiver? Am I able to do that from the M0 or M4 feather or do I need an additional FeatherWing to stack on top? If so, which one would that be?

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dastels
 
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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by dastels »

The nRF24L01 should work with anything with a SPI interface (which is basically anything). I was using it with Arduino UNO type boards (custom ATmega32 boards). There's a good writeups here https://lastminuteengineers.com/nrf24l0 ... unication/ and here https://www.seeedstudio.com/blog/2019/1 ... ino-guide/.

How you connect it is another matter. You could mount it on a FeatherWing proto and wire it to the pins. With stacking headers, make a Feather stack. See https://www.adafruit.com/product/2884.

Dave

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QuantumPie
 
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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by QuantumPie »

Thanks for the response Dave! For the Prop-Maker Featherwing I noticed the rows of pins are 2x12/16 instead of 1x12/16. Does this mean I can have my headers soldered into the outer ones and my transmitter soldered into the correct inner ones? I don't have a lot of height to work with in my container that's holding the electronics so I'd like to avoid stacking a 2nd FeatherWing onto my Feather

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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by dastels »

Yes, you can use the inner row of holes to connect the nRF24L01.

Dave

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QuantumPie
 
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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by QuantumPie »

Hi Dave,

All the parts arrived (M4 Express and Prop Maker) and on closer inspection I'm not quite sure how to connect the transceiver. I have the two feathers stacked and the inner row on the FeatherWing (on top) has M headers sticking out. Looking at the pinouts, I'm not sure which ones I can use it appears they are mapped differently between the M4 and PropMaker. I unfortunately don't understand enough about electronics to be able to sort this out.

https://learn.adafruit.com/adafruit-fea ... 51/pinouts
https://learn.adafruit.com/adafruit-pro ... ng/pinouts

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dastels
 
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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by dastels »

To be precise, you have one feather and one propmaker wing, correct?

I'm not sure what you mean by "inner row on the FeatherWing (on top) has M headers sticking out. " Can you post clear photos?

The pinouts of all Feathers and FeatherWings are the same. That's the key to their interoperability.

Dave

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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by QuantumPie »

Dave,

I can post a picture once I'm home. In the meantime, I guess what I'm not understanding is for the prop maker wing, it says "Blue - Blue pin for 3W RGB LED - connected through a MOSFET. Connected to D13 on Feather M0 or M4.". Does this mean I can no longer use D13 for other purposes? Another example would be It also looks like the MOSI pin on the M4 is A0 for audio on the FeatherWing. I hope that makes my confusion more clear.

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Re: Which Feathers/FeatherWings can connect to a nRF24L01 transceiver?

Post by dastels »

OK. Yes, some of the Feather's pins are used for various Propmaker wing functions. See https://learn.adafruit.com/adafruit-pro ... ng/pinouts

Dave

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