Description
These two different adapters PCB are intended to convert the RFM69 Module’s castellated solder pads of a 2mm spacing to fit a standard 2.54mm PCB spacing of prototype boards etc.
Both PCBs are designed for the RFM69HW module, but can be used for other models assuming the connector pins match.
Smaller version
The smaller module is more “breadboard friendly”, having a header spacing of 9 x 2.54mm, so it will fit on common breadboards with a set of breadboard holes on either wide. The design does this by rotating the RMF connections by 90° to the header connections. You may solder the antenna directly to the RFM Module, or header connector.
This PCB is approximately 28mm x 28mm.
Larger version
The larger PCB is more flexible (having more antenna options, and component placement positions) – and it will fit wider (or two side-by-side) breadboards – having a header spacing of 13 x 2.54mm. The RFM connections are in-line with the header connections making it a wider PCB.
This PCB also has through-hole pads to accommodate the two decoupling capacitors as specified in the HOPERF reference design for the RFM69HW, and through-hole pads to solder the reset capacitor (which is optional in the HOPERF reference design). There are also multiple options for you to attach an Antenna. You may solder the antenna directly to the RFM Module, or to the “ANT” pads, or the header connector.
The 2.54mm connector pins are a 1:1 match to their corresponding castellated solder pads.
This PCB is approximately 38mm x 26mm.
Using the PCBs
The PCBs are easy to use – you simply solder the castellated solder pads as required, and then add headers (or other wiring) to the 2.54mm header connectors.
The design of your circuit is entirely yours. We do not provide any technical support, sorry, but we don’t think any is required for these simple adapters.
Please verify the pin-out of your RFM module before you buy these PCB adapters. We are happy to accept returns as long as they are unused in any way and have not been soldered.
This item includes ONLY one adapter PCB. The RFM69 module and other component are NOT INCLUDED.
Acknowledgements
The terms HOPERF and RFM69 are trademarks and product names and/or property of HOPERF. We use the terms as a reference only, and we make no claims whatsoever.
We really like the RFM69HW module though!
