> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # SparkFun RFM69 Breakout (434MHz) **Type:** Product page · **SKU:** WRL-12823 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia) **Page:** https://core-electronics.com.au/sparkfun-rfm69-breakout-434mhz.html ([markdown](https://core-electronics.com.au/sparkfun-rfm69-breakout-434mhz.html.md)) This is the SparkFun RFM69 Breakout, a small piece of tech that breaks out all the pins available on the RFM69HCW module as well as making the transceiver easy to use. The RFM69HCW is an inexpensive and versatile radio module that operates in the unlicensed ISM (Industry, Science and Medicine) radio band. It’s perfect for building inexpensive short-range wireless networks of sensors and actuators for home automation, citizen science and more. ## Pricing - **Price:** $23.60 (inc GST) — $21.45 AUD, exc GST - **Quantity discounts:** 5+ $20.81 (exc GST) · 25+ $20.38 (exc GST) · 100+ $19.53 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 24 and Aug 28. ## Restrictions **For use in Australia** - Operate only in bands and with settings that are permitted for your location and application. Check this product’s supported frequencies in the description/specs. - If you intend to operate outside shared/licence‑exempt conditions (e.g. in other bands, at higher power, with high‑gain antennas, or extended duty cycles), you must have the appropriate authorisation. **For use in other regions** - Follow the spectrum rules for your country/region and select frequencies and settings accordingly. A declaration of use will need to be submitted during checkout. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=WRL-12823:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/WRL-12823:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This is the SparkFun RFM69 Breakout, a small piece of tech that breaks out all the pins available on the RFM69HCW module as well as making the transceiver easy to use. The RFM69HCW is an inexpensive and versatile radio module that operates in the unlicensed ISM (Industry, Science and Medicine) radio band. It’s perfect for building inexpensive short-range wireless networks of sensors and actuators for home automation, citizen science and more. This RFM69HCW operates on the 434MHz frequency and is capable of transmitting at up to 100mW and up to 300kbps, but you can change both of those values to fit your application. For example, you can maximize range by increasing the transmit power and reducing the data rate, or you can reduce both for short-range sensor networks that sip battery power. At full power and with simple wire antennas, Sparkfun can get messages from one side of a large office building to the other through numerous internal walls. In open air you can reach 500 meters or more. With more complex antennas and modulation schemes, similar parts have successfully transmitted from space to the ground (by very smart amateur radio enthusiasts; your mileage may vary)! The RFM69HCW uses an SPI (Serial Peripheral Interface) to communicate with a host microcontroller, and several good [Arduino libraries](https://github.com/LowPowerLab/RFM69) are available. It supports up to 256 networks of 255 nodes per network, features AES encryption to keep your data private, and transmits data packets up to 66 bytes long. SparkFun sells two versions of the RFM69HCW: a [915MHz version](https://core-electronics.com.au/sparkfun-rfm69-breakout-915mhz.html) and this 434MHz version. Although the ISM band is license-free, the band itself is different in different areas. Very roughly, 915MHz is for use in the Americas, and the 434MHz version is for use in Europe, Asia and Africa. Check your local regulations for other areas. [GET STARTED WITH THE RFM69HCW HOOKUP GUIDE](https://learn.sparkfun.com/tutorials/rfm69hcw-hookup-guide) **Dimensions**: 0.8" x 1.1" ## Features: - Transmit power: -18dBm (0.016mW) to 20dBm (100mW) in 1dBm steps - Receive sensitivity: down to -120dBm at 1.2kbps - Modulation types: FSK GFSK MSK GMSK OOK - Bit rates (FSK): 1.2kbps to 300kbps - Voltage range: 1.8V to 3.6V - Current consumption: 0.1uA sleep, 1.25mA standby, 16mA receive, 130mA transmit (max) - Encryption: AES 128-bit (optional) - Packet buffer (FIFO): 66 bytes ## Documents: - [Schematic](https://core-electronics.com.au/attachments/localcontent/RFM69HCW_BOB_68720b8dd63.pdf) - [Eagle Files](https://core-electronics.com.au/attachments/localcontent/RFM69HCW_BOB_10553cb223b.zip) - [Hookup Guide](https://learn.sparkfun.com/tutorials/rfm69hcw-hookup-guide) - [Datasheet](https://core-electronics.com.au/attachments/localcontent/RFM69HCW-V1_12448f1a2d7.pdf) (RFM69HCW) - [LowPowerLab RFM69 Library](https://github.com/LowPowerLab/RFM69) - Radiohead Library - [GitHub](https://github.com/sparkfun/RFM69HCW_Breakout) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/w/r/wrl-12823.jpg)