Month: September 2016
Smart Living Room with NodeMCU
MobileWill revamped his living room monitor with a new board design:
Living Room Node Upgrade
For over a year now the living room node and La Crosse Gateway has been sitting atop a plastic bin next to my patio slider in a mess of wires. This is when you know you have too many projects lying around the house. So this summer I decided to design a PCB with a nodeMCU that will replace both projects and mount atop of a power brick. I went with the nodeMCU since there is power nearby, ease of connecting directly to the MQTT broker, and I can broadcast more often without the power limitations of a battery. This project frees up two RFM12B boards so that they can be used for the other window and the front door.
The new board features:
- 2x female headers (so the nodeMCU is removable)
- DHT11 sensor for humidity/temperature
- LDR for light level
- 2pin header for reed switch attached to slider door
- Connections for 433Mhz radio for the La Crosse outdoor temperature sensor
Design files and code are available on GitHub:
friedcircuits/nodeSensor
Chronio: Arduino-based, low-power smartwatch
Teensy E-Paper shield update
Jarek Lupinski has posted an update for his Teensy E-Paper Shield project:
Final Code and Pictures
I finished writing a few helper functions that should get you up and running with the Epaper display shield. It can be easily integrated into a larger graphics library like Adafruit’s GFX for more intensive work.
The source code can be downloaded from Hackaday.io:
Portland Mini Maker Faire 2016
We look forward to meeting everyone this weekend at:
September 10 (Saturday) and September 11 (Sunday)
Open 10 AM – 5 PM
Portland Mini Maker Faire will run the gamut from demonstrations of 3D printing and robot welding, to knife forging, bee keeping, recycled skateboard jewelry, and much more.
Oregon Museum of Science and Industry
1945 SE Water Ave, Portland, OR 97214
Portland Mini Maker Faire at OMSI showcases the amazing works of all kinds and ages of makers—anyone who is embracing the do-it-yourself (or do-it-together) spirit and wants to share their accomplishments with an appreciative audience.
The sheer variety of the more than 100 exhibits, most of them hands-on, will boggle the mind.
Video of highlights from last year:
Cathe Post wrote on Make blog about a previous year:
10 Favorite Things at Portland’s Mini Maker Faire
Teensy WiFi Weather Logger
Teensy-based weather badge that logs humidity and temperature to Adafruit.io via WiFi:
Teensy WiFi Weather Logger
Bill of Materials:
- Teensy 3.2, OSH Park Edition
- ESP-01 (ESP8266 SoC)
- Adafruit I2C OLED (128×32)
- Adafruit I2C BME280 (temp/hum/press)
- 10K Ohm through-hole resistor
Schematic:
The Kicad design files and Arduino source code are hosted on GitHub:
teensy-wifi-weather-logger
The sensor data is logged to Adafruit.io via ESP8266’s WiFi connection:
Adafruit.io Dashboard
Adafruit.io feeds:
Video of establishing WiFi connection and logging weather data:
Wireless remote display
Abstract. For a while now the Pilogger needs a small remote display. The logging station is neither particularly compact nor elegant, therefore I made some tests about a battery powered status display. I tried solutions which I never used mainly by curiosity but also in order to continue to learn something. Especially the Wifi chip ESP8266 and a […]
LiDAR Rangefinder Teensy Hat
OSH Park engineer Jenner Hanni posted on Wickerbox Electronics about his LiDAR project for the Teensy 3.2:
LCD-LiDAR-SD Teensy Hat
Teensy 3.2 daughter board to display the results of a LiDAR-Lite rangefinder on an LCD screen, with three buttons, two LEDs, and a micro-SD card for datalogging.
The KiCad hardware design files and Arduino source code are hosted on GitHub:
wickerbox/Teensy-Hats/LCD-LiDAR-SD-Hat
Jenner has shared his board on OSH Park:
LCD-LiDAR-SD Teensy Hat v1.0
Hackaday Prize Entry: Open Sip And Puff
Hackaday highlights Jason Webb’s impressive assistive technology project:
Hackaday Prize Entry: Open Sip And Puff
A sip-and-puff device is an assistive technology used by people who cannot use their hands. Being a quasi-medical device, you can imagine this technology is extremely expensive, incapable of being modified, and basically a black box that can’t do anything except what it was designed for.
OSH Park 