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Take Flight with Feather entries: LoRaWAN Feather and Watt-A-Live #FeatherContest @Hackaday @DigiKey @Adafruit

The Take Flight with Feather Contest is running from now to December 31st – see all the details in the kickoff post! Hurry, time is short!

You still have time to get your entry in before the end of the month!

We’re going to highlight entries posted on Hackaday.io two at a time. Here are today’s entries:

LoRaWAN Feather

By Andy:

A LoRaWAN Feather board based on the STM32L073 and DRF1262T radio module. Has all the awesome Feather features:
– USB
– LiPo charging
– I2C, SPI, UART, GPIO, Analog, DAC
– USER button and LED
With all the fun LoRaWAN features
– STM32L073 and SX1262 supported configuration for the Semtech LoRaWAN reference
implementation
With awesome upgrades!
– Efficient DC-DC buck/boost converter
– SWD connector
– Builtin LiPo Fuel Gauging
– Hardware support for a hard secure element

Designed to be machine built. Most of the PCB is, in fact, designed around the JLC SMT parts library.

Watt-A-Live INA209 Power Monitor Shield Wing

By MagicWolfi:

Yes, we want to keep the Watts alive and not kill them (if you know what I mean ;).

The Watt-A-Live is a versatile embedded power monitor based on the Texas Instruments INA209 with full connectivity to the unit under test. It measures the load current through a shunt resistor and has separate GND connections to the power supply and the load to make it a true power monitor.

It is designed as an Adafruit Feather Wing and Arduino Shield. Alternatively it can be used as a breakout board with any other controller that has I2C and optional GPIO connectivity. 2 jumpers can select between 2 different shunts to measure different current ranges.

The new version board is populated with a 0.05 Ohm shunt to measure 6.4A to 200µA. Optionally a 4.99 Ohm shunt can be added for a current range of 64mA to 2uA. Maximum bus voltage is 26V.

An Arduino library is provided to access all registers and measurements, a demo sketch shows how to print data through the serial console easily.



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