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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