initial commit

diff --git a/NOTES.md b/NOTES.md
new file mode 100644 (file)
index 0000000..9605df6
--- /dev/null
+++ b/NOTES.md
@@ -0,0 +1,28 @@
+# RTOS and bare metal options for SAMD21
+
+[Zephyr](https://www.zephyrproject.org/] 
+
+[Zephyr on Feather](https://learn.adafruit.com/blinking-led-with-zephyr-rtos)
+
+https://github.com/ataradov/mcu-starter-projects
+
+# Referenes on SAMD21 and Feather ecosystem
+
+
+[Zephy / Boards / feather m0](https://docs.zephyrproject.org/latest/boards/arm/adafruit_feather_m0_basic_proto/doc/index.html)
+ - documents the port assignments on the SAMD21 and interconnect on Feather
+
+
+# LoRa, LoRaWAN, and Feather
+
+https://github.com/svcguy/lorawanFeather
+
+https://github.com/kisom/lora-modem 
+
+https://github.com/MKme/lora 
+
+https://github.com/cbleg98/LoRa-High-Altitude-Balloon 
+
+https://learn.adafruit.com/adafruit-feather-m0-radio-with-lora-radio-module/using-the-rfm-9x-radio
+
+