Installation walkthrough of Xastir server installation on a RaspberryPI for APRS communication (Amateur Radio).
An alternative method on decoding RF signals emitted from an RF remote control using an USB SDR Chip (RTL2832) and SDR Sharp software.
Deploy a Nimbits Data Logger in the Cloud based on Google App Engine.
An Arduino embedded system for supporting security access control with multi-factor authentication (Voice Recognition, Keypad Password, RFID Tag Code).
GPS Live is a complete Fleet Management Service (based on OpenGTS, OSS project) that includes a rich set of features like: Realtime vehicles and assets tracking online, Mobile client for Android/Symbian phones with GPS support.
Using a 4N25 Optoisolator w/ Arduino to control other circuits.
A chiptune test w/ arduino.
A simple walkthrough of using a spare joystick as an input controller for the GameDuino shield.
Arduino + LM35 + LCD = VisioTherm
Arduino w/ TSOP1238 IR Receiver + LCD. I have programmed an IR TV remote sending codes to display on LCD.
Controlling a LED connected on Arduino w/ Ethernet Module/Shield remotely.
An Arduino based water tank level meter fascilitating an ultrasonic sonar range module and a LCD display plus a temp sensor.
Raspberry Pi running Processing to communicate w/ Arduino reading from a temp sensor showing on screen. You can also dim a LED on Arduino by moving a slider.
This application is provided as example code of some basic features usage like Splash screen, Tab navigation, Google map, File I/O, File downloader, UI threading, File viewer.
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Thanks for the heads up @Radu Motisan . Overall, #City Air Quality it's a nice project and this latest update to include an all-in-one sensor board kit which supports multiple comm. options including LoRaWAN is really great!
Thanks for the excellent feedback!! Planning to also add a temp/pressure sensor (probably the BME280 from Bosch), and for that I need a PCB protuberance outside the enclosure, so I can place the sensing element away from the heating electronics. Possibly, also a noise sensor. So many plans, so little time.
Thanks for following #City Air Quality ! This is the fifth uRADMonitor hardware, designed as a better fit to smart city implementations. More here: https://www.uradmonitor.com/products/?sel=5