Penguino Feather SAMR34 LoRa Dev-Board

Orkhan AmirAslan on Hackaday.io has created a RAK4260 based, Feather styled LoRa dev-board:

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Penguino Feather SAMR34 LoRa Dev-Board

This is a SAMR34 based LoRa dev-board with all the necessary components for fast prototyping. It’s a successor of my previous Penguino RF module and Feather breakout design ( https://www.tindie.com/products/16985/ )The new design uses the RAK4260 module from @RAKWireless and improves on some aspects, such as USB Type-C, RGB LED, user button, battery protection & voltage supervision, and optional flash & per-provisioned secure element IC pads.

Background:

About a year ago, after I first saw SAMR34 System in Package (SiP) in 2018 Electronica I couldn’t find a module for it and I took up the challenge for myself to build one myself. Then sharing first renders with the Twitterverse it gathered quite a bit of interest and I started selling couple over at my Tindie store. At the time I named the project TinyLoRa but for legal reasons I had to change it to Penguino.

Specs:

  • ATSAMR34J18 LoRA System-in-Package (SiP) based RAK4260
  • ARM Cortex M0+ MCU & SX1276 LoRa Radio
  • 256KB Flash, 40 KB RAM
  • Max Tx Power: +20 dBm; Max Sensitivity: -148dBm; Rx Current: 17mA (typical)
  • Frequency Range: 862 to 1020 MHz (DS values)
  • Deep Sleep Current: ~1 μA (module only)
  • Li-Po battery charging IC
  • RGB user LED, Battery Charge Status (red) and Power (blue) (w/ cut-off jumpers)
  • 3.3V low Iq LDO (~1 μA)
  • Low-voltage battery cut-off supervisor IC (3V Vbat cutoff)
  • USB Type-C connector with protection/filtering circuit
  • 0.75 A resettable fuse
  • Voltage divider for Vbat monitoring (w/ cut-off jumpers)
  • SMA and u.FL antenna connectors
  • 10-pin SWD programming header
  • Dimensions: 2 in. x 0.9 in. (50.8 mm x 22.8 mm)

Penguino Feather SAMR34 LoRa Dev-Board

SoftRF LoRa

SoftRF is an open project for aircraft collision avoidance avionics and has designed an adapter for RFM9x to fit NRF905 module dimensions and pinout:

SoftRF-Case-v4-Exterior.jpg

SoftRF

Multifunctional DIY IoT-based general aviation proximity awareness system.

Features:

  • 2-way raw data bridge between 868/915 MHz radio band and Wi-Fi ;
  • standalone, battery powered, compatible proximity awareness instrument that fits typical 2.25 inches hole ;
  • lightweight version to carry onboard of an UAV.

SoftRF has shared the board on OSH Park:

SoftRF-LoRa v1.1
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Order from OSH Park

SoftRF LoRa

LoRaWAN FeatherWing for Adafruit Feather

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Dan Watson has designed a new FeatherWing that adds the MicroChip RN2483/RN2903 LoRaWAN module to Adafruit Feather:

LoRaWAN FeatherWing for Adafruit Feather

Help your Feather fly into the IoT clouds with this awesome LoRaWAN module from MicroChip.

The design files are hosted on GitHub:

lorawanfw_sch

SyncChannelBlog has shared the board on OSH Park:

LoRaWAN FeatherWing

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Order from OSH Park

LoRaWAN FeatherWing for Adafruit Feather