💬 NRF2RFM69

[bilbolodz]

@tbowmo How about PCBs.io? Any chance for direct link? I've trying to upload it but got an error about "Gerber normalization for Layer: Drill Holes". I'm a quite newbie for designing/uploading files for PCB factories so sorry for maybe stupid question.

[gohan]

I ordered 10 from Seeed Studio and I had no problems; I am waiting for delivery.

[bilbolodz]

@gohan Seeed Studio ask 11.16 for delivery :-(

[bilbolodz]

I've uploaded (I hope all will be fine with PCB) on PCBs.io: https://pcbs.io/share/zZAMk
3.10 USD for 4 pieces free shipment

[gohan]

I had other pcb in order so shipping cost was not that bad, in addition 10 pcbs are 4.90$

[tbowmo]

@bilbolodz

There is also a link to dirtypcbs somewhere in this thread, where you can order pcb's.

[GertSanders]

@tbowmo

http://dirtypcbs.com/store/pcbs

[jeti]

@tbowmo i have some left over. If you are interested just shoot me a pm
Thanks
Jeti

[tbowmo]

@jeti

Thanks, but I still have a couple left in my parts bin :)

[gohan]

Is it just me or there are some pins that are not exactly the same order as a normal 8 pins nrf24?

[tbowmo]

@gohan what do you mean?

[gohan]

Like CE pin is actually connected to the CSN pin on the 2x4 pin side

[tbowmo]

@gohan

On NRF24 CSN is equivalent of CE signal on the SPI bus. While CE is a global on/off switch for the TX/RX on the NRF (Check page 11 in the nrf24 datasheet

On RFM69 CE is actually called NSS (pin 15). Datasheet are here

I don't have the schematics of this project at hand right now, as someone has forgotten to add a pdf of it to the repository ;)

[gohan]

I haven't mapped all the pins because yesterday I was a little tired, maybe tonight I'll check, but the fact is that I can't initialize the radio while the nrf24 works. 😕

[tbowmo]

I have used the board with a couple of sensebender micros.. and they worked fine..

[gohan]

Looking at the https://www.mysensors.org/build/raspberry page I have the current mapping on the board rfm69 side:

pin above DI00 is connected to CE pin
DI00 is connected to IRQ
NSS is connected to CSN
MOSI to MOSI ok
MISO to MISO ok
SCK to SCK ok

Do you think is correct?

[tbowmo]

RFM69 NSS is equivalent of NRF24 CSN

DIO0 act as interrupt line, and is attached in accordance with connecting the radio.

the pin above DIO0 is actually the reset line for the RFM69 module.. Which might come in handy, if you want to do a hardware reset at some point in time :)

[gohan]

So why isn't it working then? Did I fry the radio?

[tbowmo]

@gohan

Could you have added it to a 5V arduino? RFM is not 5V tolerant, so that could fry the radio..

[gohan]

No, I used it only on the raspberry