Author Topic: RFM69W Breakout Board  (Read 4123 times)

uChip

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RFM69W Breakout Board
« on: February 09, 2014, 01:46:14 PM »
I wanted to experiment with the RFM69W radio on my existing Arduinos so I created a breakout board.  The board has the same edge pinout as the RFM12B Board from JeeLabs so you can swap between them.

Details are here: https://github.com/uChip/RFM69W_BOB

You can order the board from Osh Park here: http://oshpark.com/shared_projects/bJRprI06
$6.75 for three boards (PCBs only).

Note that the board is NOT compatible with the RFM12B or the RFM69CW.  Use the JeeLabs board for those.

Have fun.
  - Chip

jra

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Re: RFM69W Breakout Board
« Reply #1 on: February 10, 2014, 02:08:18 PM »
Excellent!  I ordered a few RFM69HW transceivers awhile ago and was going to hack up a solution that would allow me to plug them into a breadboard, decided to order your breakout boards instead.

uChip

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Re: RFM69W Breakout Board
« Reply #2 on: February 11, 2014, 11:14:49 AM »
Cool.  According to the mechanical drawings that should work fine, but I haven't tested with the 'HW.  Let us know how it goes.

Vince

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Re: RFM69W Breakout Board
« Reply #3 on: February 11, 2014, 09:00:48 PM »
uChip,

Nice idea on the Breakout Board, especially the level shifting resistor option. Do you have a parts list available for use with the Board? I just ordered three.

Thanks,

Vince

uChip

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Re: RFM69W Breakout Board
« Reply #4 on: February 12, 2014, 09:55:38 PM »
Here is the order list
QtyPartsValueMfg Part #Description / Vendor
1JP18-pinsBreak Away Male Headers - Right Angle https://www.sparkfun.com/products/553
1PCB RFM69W Breakout Boardhttp://oshpark.com/shared_projects/bJRprI06
2C1, C20.1uFC2012X7R2A104K125AACAP CER 0.1UF 100V 10% X7R 0805; Digi-Key #445-1418-1-ND
3R4, R5, R610kCRT0805-BY-1002ELFRES 10K OHM 1/8W .1% 0805 SMD; Digi-Key #CRT0805-BY-1002ELFCT-ND
1C410uFF951A106MRAAQ2CAP TANT 10UF 10V 20% 0805; Digi-Key #478-8418-1-ND
3R1, R2, R34k7ERJ-6GEYJ472VRES 4.7K OHM 1/8W 5% 0805 SMD; Digi-Key #P4.7KACT-ND
1U2MCP1701MCP1701AT-3302I/MBIC REG LDO 3.3V 0.15A SOT89-3; Digi-Key #MCP1701AT-3302I/MBCT-ND
1U1RFM69WRFM69W-S2http://lowpowerlab.com/shop/RFM69W

And here is the parts list
PartValueDevicePackageDescription
C10.1uFCAP08050805Capacitor
C20.1uFCAP08050805Capacitor
C410uFCAP_POL08050805-POL
JP18pins1X08_RIGHT_ANGLEHeader 8
R14k7RESISTOR0805-RES0805Resistor
R24k7RESISTOR0805-RES0805Resistor
R34k7RESISTOR0805-RES0805Resistor
R410kRESISTOR0805-RES0805Resistor
R510kRESISTOR0805-RES0805Resistor
R610kRESISTOR0805-RES0805Resistor
U1RFM69WRFM69WRFM69WRadio Transceiver Module, FSK, 433, 848, 915 MHz, SPI controlled, Mfr=HopeRF
U2MCP1701MCP1701SOT-89Voltage Regulator, LDO, fixed 1.8,2.5,3.0,3.3,5.0V, 500mW/Vdrop

Note that all parts are "or equivalent".  These are the parts I tested with, but you can probably substitute parts with no impact on function.  For instance, any 0805 package 10k resistor would be fine.

Do check the repo document as not all parts are needed in all applications.

I will also add this info to the github repo.

  - Chip

chalupien

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Re: RFM69W Breakout Board
« Reply #5 on: March 19, 2014, 02:02:39 PM »
Hi Why use a voltage divider vs a level shifting chip? Pro's/Cons?

Felix

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Re: RFM69W Breakout Board
« Reply #6 on: March 19, 2014, 07:36:21 PM »
Resistors will work just fine, cheapest option.
You can also use FETs or dedicated chips for level shifting, these are more complex/expensive solutions. For hobby stuff resistors are fine, if you are the military you might want shifting chips ;)