Author Topic: RFM69 - not receiving?  (Read 753 times)

chbla

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RFM69 - not receiving?
« on: December 26, 2016, 09:51:52 AM »
Hi there,

I've got two RFM69HC 434Mhz, connected to two Arduino Nano 3 clones.

The code I use for testing is this:
https://gist.github.com/solars/44b2398e62d07e29314538a70579663f
(it's from sparkfun: https://learn.sparkfun.com/tutorials/rfm69hcw-hookup-guide/running-the-example-code)

When I enter something in the serial console it seems to be sending. The LED flashes quickly.
However, there is nothing received on the other side. If I eneable ACK I just get the 'no ack received' msg.

Can anyone spot the error? Is it maybe because I don't have a HCW, any settings wrong?

Thank you very much

« Last Edit: December 26, 2016, 09:56:44 AM by chbla »

chbla

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Re: RFM69 - not receiving?
« Reply #1 on: December 26, 2016, 04:59:32 PM »
When asking on mysensors I noticed that the RFM69 is not 5V tolerant on the inputs :( The blog post I took the
wiring from didn't mention that.

Being rather new to this, is it possible to adjust the level with resistors or do I need something else?