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#398 – An Interview with Felix Rusu
- Felix has been running LowPowerLab since 2011 after a career in software engineering and attending school at ASU.
- While evaluating RF modules, he started with RFM12B, now obsolete
- RFM69
- Chip from Semtech (but custom packaged for HopeRF)
- Module by HopeRF
- Also can use RFM95/96 with LPL devices for LoRa projects
- Range for RFM69 is a couple hundred meters to a couple kilometers
- Battery life is about 1-2 years without lots of tweaking to the code
- Moteinos are the main product, they can be customized with modules and flash.
- These are based off the Arduino Uno and use an Microchip (Atmel) 328P for the processing. A newer version uses the SAMD21.
- The power can get down below 10 uA while sleeping, including radios. During transmit, the power is in the 10s of milliamps.
- There is an RFM69 library that gets you started quickly using the RF side of things
- The community has many resources including tutorials and a forum.
- Felix recommends starting with the Mailbox Project which uses the MotionMote kit.