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Re: RFM69HCW and Arduino Uno R3 Problem

 by AgroMe ¦  Mon Sep 10, 2018 6:40 am ¦  Forum: Wireless/RF ¦  Topic: RFM69HCW and Arduino Uno R3 Problem ¦  Replies: 6 ¦  Views: 440

I this exact set-up all the time and works perfectly so you must be doing something wrong or something is fried...
Did you use signal translators ? The Uno is 5V and the RFM69 is 3V.

Re: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9

 by AgroMe ¦  Tue Jul 17, 2018 9:52 pm ¦  Forum: Wireless/RF ¦  Topic: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9 ¦  Replies: 6 ¦  Views: 664

Solved! Please disregard my previous post. No need to hack the RFM69 library. To get it working: 1) Connect SPI lines MISO, MOSI and CLK from the ICSP header to RFM69BOB pins O,I and C respectively. Do not use pins 11-13 as the tutorial for the Uno) 2) For Slave Select use Yun Digital Pin 10 (i.e. ...

Re: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9

 by AgroMe ¦  Tue Jul 17, 2018 6:22 pm ¦  Forum: Wireless/RF ¦  Topic: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9 ¦  Replies: 6 ¦  Views: 664

I have been able to solve several things. For one, I got rid of the slowness by getting SS to work on pin 10 and I moved the interrupt pin to pin 9 which is int 5. I modified the library code for the Yun' G1's case and it's mostly working except for reception. There is absolutely no reception and I ...

Re: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9

 by AgroMe ¦  Sun Jul 15, 2018 9:21 pm ¦  Forum: Wireless/RF ¦  Topic: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9 ¦  Replies: 6 ¦  Views: 664

I just found this old post and it's almost identical to mine. The author also begs the question if it's SPI or radio interference and seems a little bit of both. I wonder if someone can point me where or how to hack the SPI lib. I am also going to construct an improvised shielding with cardboard and...

Re: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9

 by AgroMe ¦  Sun Jul 15, 2018 8:53 pm ¦  Forum: Wireless/RF ¦  Topic: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9 ¦  Replies: 6 ¦  Views: 664

Here is some additional information. It turns out that the problem is that Node 1 (the Yun node) does not receive at all ! I took the radio circuitry and tested on another Uno and works perfectly, but when on the Yun it does not receive. I hacked a version of sendWithRetry to do some internal timing...

Re: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9

 by AgroMe ¦  Sun Jul 15, 2018 3:13 pm ¦  Forum: Wireless/RF ¦  Topic: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9 ¦  Replies: 6 ¦  Views: 664

Here are some timings. It's taking about 3 seconds to return radio.sendWithRetry to return: Node 1 ready sending to node 2, message [HELLO WORLD] 86024 no ACK received 89253 (3229) TX LED sending to node 2, message [HELLO WORLD] 108647 no ACK received 111873 (3226) TX LED sending to node 2, message ...

Problem using RFM69HCW with a YUN (Generation 1) using SS on D9

 by AgroMe ¦  Sun Jul 15, 2018 1:43 pm ¦  Forum: Wireless/RF ¦  Topic: Problem using RFM69HCW with a YUN (Generation 1) using SS on D9 ¦  Replies: 6 ¦  Views: 664

I have the SparkFun RFM69 Breakout working on two Arduino Unos using this guide: https://learn.sparkfun.com/tutorials/rfm69hcw-hookup-guide?_ga=2.1243636.413905934.1529979890-1852596881.1491449441#how-it-works Now I want to add a third node using an Arduino Yun Generation 1, but I can only barely ge...

microSD to Standard Size SD Adapter

 by AgroMe ¦  Mon Oct 09, 2017 7:03 pm ¦  Forum: New Product Ideas ¦  Topic: microSD to Standard Size SD Adapter ¦  Replies: 0 ¦  Views: 1014

Hi there! Idea for a product: microSD to Standard SD Adapter Would be like putting together products 9419 and 11468 There are some cables out there for about $4-10 but they are too long (48-70 cm) and this probably affects the signal. I hacked a converter using your products 9419 and 11468 and had t...

ATtiny85 driving RFM22B-S2

 by AgroMe ¦  Mon Oct 02, 2017 8:45 pm ¦  Forum: Wireless/RF ¦  Topic: ATtiny85 driving RFM22B-S2 ¦  Replies: 0 ¦  Views: 671

Hi, I wonder if the ATtiny85 is enough to drive an RFM22B-S2, not sure if this is the best combination for what we are trying to achieve. We are designing an irrigation system that has capacitive moisture sensors in each plant that are usually wired but we are looking at eliminating the wiring in a ...