Penguino Feather LoRa dev board

November 4, 2020 fustiniLoRa, lorawan, tindie, wirelessLeave a comment

MakerTronika Labs in Azerbaijan created this LoRaWAN capable dev board in Feather form factor:

Penguino Feather 4260 (SAMR34) LoRa Dev-Board

This is a SAMR34 based LoRa/LoRaWAN™ dev-board with all the necessary components for fast prototyping. It’s a successor of my previous Penguino SAMR34 design. The new design uses the RAK4260 module from @RAKWireless and improves on some aspects, such as a USB Type-C, a RGB LED, a user button, battery protection & voltage supervision, and optional flash & per-provisioned secure element IC pads.
Current HW version is v.1.2 and it’s offered in green soldermask (ENIG). All the design files can be found on my GitHub.
From v.1.2 onward the Penguino board also features CH340E USB-to-UART converter to further ease the development.

Penguino Feather SAMR34 LoRa Dev-Board

January 9, 2020January 9, 2020 fustinifeather, haackaday.io, LoRa, lorawan, microcontroller, tindie, wirelessLeave a comment

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

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)

Other than goofing up the SWD lines, everything else seems to work fine. 🎉 pic.twitter.com/CLn65odP7P

— Orkhan Amiraslan (@azerimaker) December 12, 2019

Thank you for the candy, dear @oshpark 🍬 pic.twitter.com/0iOn8wrzZU

— Orkhan Amiraslan (@azerimaker) December 10, 2019

Soldered some @oshpark #afterDark version of the #Penguino boards. pic.twitter.com/KJS7a9Gwen

— Orkhan Amiraslan (@azerimaker) January 3, 2020

SoftRF LoRa

November 21, 2017November 22, 2017 fustiniaircraft, aviation, iot, lorawan, wirelessLeave a comment

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

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: