Shared Projects by kvanerve

FeatherWing Proto pcb, inspired by Adafruit FeatherWing boards. Compatible with Particle Xenon, Argon and Boron mesh devices.

A LoRaWAN node powered by an attiny85V and the RFM95W using a CR2032 coin cell battery. Including a smd button and ISP headers for programming.

Components:

• Attiny85v-10SU

• RFM95W (868 MHz LoRaWAN module)

• 10 uF capacitor (1206)

• KMR231 tact switch (4.2 x 2.8 mm, height 1.9 mm) OR you could solder something else to the pads, for example the 18010P vibration sensor switch

• CR2032 coin cell holder

• CR2032 coin cell

Add a wire antenna of length 82 mm to the ant1 connection (monopole). For coding: look at this for a good starting point: https://github.com/ClemensRiederer/TinyLoRa-BME280_v1.1/blob/master/ATtinyLoRa.cpp

TIP: The attiny85v can measure both the Vcc voltages and the temperature without using an extra pin. Link: http://21stdigitalhome.blogspot.com/2014/10/trinket-attiny85-internal-temperature.html