Any RFM95 user reports?
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Hi,
I don't know whether this helps, but I am also experiencing some trouble testing an RFM95 module.
I am using the Moteino with FTDI adapter.
I found that the connection is really instable (I should use some capacitors for a more stable connection I guess, even though there's no problem with the RFM69 433mHz version).
My configuration is the default one. Don't know if I even have to define it that way, just did it because I had to with the last ones:#define MY_DEBUG // used by MySensor (Print debug messages via serial) #define MY_RADIO_RFM95 // Select Radio-Module RFM95 #define MY_RFM95_FREQUENCY 868 // Define our Frequency of 868 MHz #define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR45SF128 //Default for medium Range and medium speed: RFM95_BW125CR45SF128 ; For long range and slow speed: RFM95_BW125CR48SF4096 #define MY_RFM95_NETWORKID 100 // leave out for gateway selection #define MY_RFM95_IRQ_PIN DEFAULT_RFM95_IRQ_PIN #define MY_RFM95_IRQ_NUM DEFAULT_RFM95_IRQ_NUM #define MY_RFM95_CS_PIN DEFAULT_RFM95_CS_PIN #define MY_NODE_ID 224 // Node ID #define MY_BAUD_RATE 38400Also I am trying to use it with an RPi and FHEM. But this didn't work so far.
But I do get it to work over the PC-USB using the Arduino Serial-Monitor... Strange. -
@gohan
Ah sorry, I misunderstood.
The RFM95s VCC is factory-wired to a regulator on the moteino. It is an out of the box MCU+Radio-Unit.
See this link for clarification:
Moteino with RFM95Sorry for the confusion.
EDIT: I just tried changing my normal 433MHz Gateway with Arduino Nano + RFM69HCW on the RPi for a Moteino-integrated-RFM69HCW one.
I have the same problem with that as with the LoRa Moteino GW... It works fine with the PC and even gets readings far away, I normally do not get.
Hooking it up to the RPi with FHEM it stops working...
I can't really explain that? :confused:EDIT 2: I checked the debug of the sensor-sided unit. It says st=OK...
So I guess I'll have to check my hardware (FTDI etc.) -
Ok, the on board regulator should able to provide 250mA while the Rfm95 uses 120mA max, so that should be OK.
@gohan
Your point made me look something up. Even though I do use the 2.5 amps powersupply for the RPi3 Model B I did find, that the RPi can only take up to 1Amp max. and depending on what's it doing, it can consume between 700-1000 mA.
So hooking up the Moteino + FTDI may max that out even though the USB-Port should supply up to 500mA.
raspberrypi.orgTypically, the model B uses between 700-1000mA depending on what peripherals are connected; the model A can use as little as 500mA with no peripherals attached. The maximum power the Raspberry Pi can use is 1 Amp. If you need to connect a USB device that will take the power requirements above 1 Amp, then you must connect it to an externally-powered USB hub.
So I'll try an active HUB next. And if that works I might give this a try:
Boost USB-Power
This site claims that a change in the RPi's config file should boost the max output current to 1.2 A... Sounds a little wild and unhealthy but I'll give it a shot.Also FTDIchip.com claims that you should use an external USB-power-supply when powering devices with more than 100mA. Everything points into one direction :scream:
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Hey guys, a little later but still I've got "kind of" news.
Everything I tried to get the Moteino as GW to work consistently failed.
It seems the problem either lay with the FTDI or the Moteino as GW. Since I am using a Nano with an Adafruit Breakout RFM95W everything just works fine. It is a little unsatisfying but as I only need Moteinos for Nodes (low battery drain) I will go with this (cheaper) GW.
