atmel

Low power Arduino Pro Mini board

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3317771479151537261.JPGMax.K created this Arduino Pro Mini compatible development board for low power applications:

LP Mini

ideal for data logging over extended periods of time [..] can run for months or even years on a coin cell

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Hardware

  • Microcontroller: Atmega328p with Arduino bootloader
  • Real Time Clock: MCP79410
  • Voltage Regulator: MCP1700
  • FDN340P MOSFET

Features

  • 2.8 µA current consumption in sleep mode
  • Compatible to the Arduino Pro Mini (except for pin 2 and 10)
  • A real time clock keeps the time and is used to wake the Atmega from sleep mode
  • Sleep current is reduced by using a more efficient voltage regulator
  • A simple Mosfet is used to turn external devices on and off if the IO pins cannot provide enough current
Low power Arduino Pro Mini board

Minifigure Atmel SAMD21 Board

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Benjamin Shockley designed this adorable Atmel SAMD21 dev board in the shape of Lego mini-figures!

This circuit board was designed as a fun project for a SAMD21E microcontroller based development board. The circuit design follows the recommended design from the SAMD Datasheet.

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The design files are shared on GitHub:

imagesbwshockley/Minifigure-SAMD21E

 

bwshockley has shared the board on OSH Park:

Minifigure SAMD21 Board

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Order from OSH Park

Minifigure Atmel SAMD21 Board

Building an ATmega328 uploader

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Carlos of GlowSaber wrote a great blog post on how we built an AVR programmer shield:

Building an ATmega328 uploader

As I learned more about Arduino, I realized that it is possible to redesign the GlowSaber around the ATmega328 chip [..] I designed an Arduino Shield that can be used to burn the bootloader and upload programs to an ATmega328 chip.

http://www.glowsaberphysics.com/?p=171
http://www.glowsaberphysics.com/?p=171
http://www.glowsaberphysics.com/?p=171
http://www.glowsaberphysics.com/?p=171
http://www.glowsaberphysics.com/?p=171
http://www.glowsaberphysics.com/?p=171
http://www.glowsaberphysics.com/?p=171

Here’s a example of an ATmega328 in a custom board:

cvadillo shared the board on OSH Park:

Arduino ISP Breakout shared project

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Order from OSH Park

Building an ATmega328 uploader

Arduino Pro Trinket Bubble Display

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davedarko wrote in his LED displays on Arduinos – a collection project log on hackaday.io:

Arduino Pro Trinket – bubble display

With 4 of HP QDSP-6064 bubble displays in a drawer I felt ready to do something with them and the “Clocks for Social Good” – call on hackaday.com finally got me going

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The design files are available on GitHub:

images TrinketProShield_display

davedarko has shared the board on OSH Park:

ProTrinket Bubble Display shield

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Order from OSH Park

Arduino Pro Trinket Bubble Display

ATtiny Keychain Arcade

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Ilya Titov created this adorable, tiny keychain arcade kit:

ATtiny Arcade keychain game kit

ATtiny Arcade is a little game made using Atmel Attiny85 microcontroller and an OLED screen. The kit is a great hobby project that requires assembly with a soldering iron.

http://webboggles.com/attiny85-game-kit-assembly-instructions/
http://webboggles.com/attiny85-game-kit-assembly-instructions/
http://webboggles.com/attiny85-game-kit-assembly-instructions/

Kit contains:

  • Atmel Attiny85 microchip
  • DIP8 socket for the Attiny85
  • 2x pushbuttons
  • 2x pullup resistors
  • SSD1306 OLED screen 128×64 pixels
  • CR2032 battery holder
  • Piezo buzzer
  • Purple PCB manufactured by OSH Park
  • FDM ABS 3D printed case

Available games:

  • Breakout
  • Oroboros
  • UFO Escape
ATtiny Keychain Arcade

SAMD21 giveaway — 0miker0’s Blog

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What I’d like to give away one SAMD21 logger/sensor board to someone, wherever in the world you are. Why I’m a hardware guy, not a programmer. I’ve had fun designing this project and wrote simple code to verifying everything works. There is enough hardware and sketch space available to create a pretty cool logger project. […]

via SAMD21 giveaway — 0miker0’s Blog

SAMD21 giveaway — 0miker0’s Blog

Atmel SAMD21G Sensor Board

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Mike Rankin created this tiny sensor board with an ARM Cortex M0+ microcontroller and OLED display:

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0miker0’s Blog: SAMD21G Sensor Board

It’s pretty tiny so a 4 layer board made the whole job easier. The top and bottom are pretty much dedicated for components, layer1 are tracks and power traces, layer2 is a ground plane. Mixing up an internal plane and routing layer was interesting.

Screenshot from 2016-09-21 09-43-22.png

The hardware consists of:

  • SAMD21G18A processor (used in the Adafruit Feather)
  • HDC1080DMBT temperature/humidity sensor
  • ADXL345B accelerometer
  • DS1340U RTC
  • MCP73833 LiPo battery charger
  • MicroSD card connector
  • Navigation Button and pushbutton
  • 0.66″ mono oled display
  • Micro USB connector for charging and uploading new sketches

 

The design files and source code are available on GitHub:

github mike-rankin/SAMD21G18A_Sensor_Board

 

Video of the board in action:

 

miker has shared the board on OSH Park:

SAMD21G18A_Sensor_Board_Rev1

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Atmel SAMD21G Sensor Board

Wearable Navigational Aid for the Blind

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Neil Movva created this wearable project to assist the blind:screenshot-at-2016-09-20-10-57-32

Pathfinder – Haptic Navigation

wearable device that translates distance into haptic feedback. Users just wear the wristband (or glove) and point at objects up to 500 centimeters away, and feel gentle pulses at their fingertips corresponding to the object’s distance
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The design files and source code are available on GitHub:

githubneilmovva/pathfinder

Wearable Navigational Aid for the Blind