RFM95-LoraWAN-Keyfob

lostangles.

2 layer board of 1.07x1.70 inches (27.13x43.08 mm).
Shared on January 7th, 2017 20:17.

32u4 uC with HopRF RFM95 915MHz radio for LoraWAN

Order board. Download. Permalink. Embed order link.

Copy this HTML into your page to embed a link to order this shared project

Alt12887

maeslin.

2 layer board of 0.70x1.20 inches (17.83x30.53 mm).
Shared on January 7th, 2017 20:17.

DS12887 substitute with replaceable battery.
Uses:
- 1x DS12885/BQ3285 in SOIC package
- 1x 32.768kHz crystal, SMD, 6pF
- 1x CR1220 battery holder (Harwin S8411-45R or equivalent)

Adapted from previous versions to use regular 0.1" ‘square pin’ breakaway headers

Order board. Download. Permalink. Embed order link.

Copy this HTML into your page to embed a link to order this shared project

Mightyduino 1.3

paulo.

2 layer board of 1.83x0.92 inches (46.38x23.27 mm).
Shared on January 7th, 2017 18:55.

Mightyduino

A DIY Arduino type hardware board based on ATmega644p Atmega1284p

This project is free and based on @MCUDude’s MightyCore which has awesome well designed kits for serious development with AVR’s. top

Mightyduino is an Arduino with more memory than an Arduino Pro mini. It can use 644p (64k) or 1284p (128k) chips. It’s voltage can be configured by U1 and the frequecy can be configured by the Murata’s ressonator (crystal). It has a power led and another one connected to pin D0. The push button performs reset. DTR pin can be used to external reset. The RAW pin is the input voltage <16v. The VCC pin is the regulator output and IC voltage, it can be loaded up to peak of 500mA.

To burn the bootloader (optiboot 6.0) you must first install the MightyCore boards on Arduino App , connect the ICSP pins to your bootloader programming hardware (eg. USBASP), select one of MCUDude’s board that meet the specs you use and burn bootloader. Then you can access (ttl-serial dongle) like a normal arduino on the serial pins (like arduino pro mini). Mightyduino uses the ‘standard’ pin mapping.