The RS-UV3 is a shot in the arm for amateur radio. The RS-UV3 lets you build your own Arduino- or Raspberry Pi–based radio. The US $90 RS-UV3 radio shield from HobbyPCB is an FM transceiver that’s welcoming by design and built for makers from the ground up. It’s not the only radio shield available for →
This is continuation to Interesting VGA hacks hacks posting. Interesting VGA hacks hacks was concentrated on using VGA card for nontraditional uses, this posting on the other hand concentrates on generating VGA signals with other hardware than VGA graphics card. It seems that modern microcontrollers are well suited to display information on analog VGA monitors: →
Some of my favorite small micro-controller platforms (as you might have seen if you have been reading this blog) are Arduino and ESP8266. It seems that there is going ot be some upgrades to those platforms this year. ESP32 ESP8266 chip is used to build WiFi modules for serial-to-WiFi conversion and Internet of Things applications. ESP8266 →
How to use Amazon AWS IoT services for home auomation? Finnish blog posting Valoautomaatiota AWS IoT -alustalla (check English translation by Google) about building home lighting automation with Philips Hue, Z-Wave and AWS IoT. The idea is to build a solution where the lights go on automatically on arrival to home and they can be →
Here is my list of electronics industry trends and predictions for 2016: There was a huge set of mega mergers in electronics industry announced in 2015. In 2016 we will see less mergers and how well the existing mergers went. Not all of the major acquisitions will succeed. Probably the the biggest challenge in these →
This is the second posting on NodeMcu robot kit: DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit. The first posting was a about what you can find inside the kit, and it ended to this picture that shows the parts in the kit When all the parts are now available, the next task →
I like Internet of Things and robotics, so DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit was a good match for this to test. DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit is a WiFi RC smart car that is designed and developed based on ESP-12E from ESP8266. It →
Halloween is coming. It is time to start those hardware hacks to scare people. For lots of ideas check out previous Halloween postings and following videos: Arduino Project Ideas – Build a Smart Pumpkin for Halloween Arduino-Controlled Halloween Props How are big halloween displays built? Controlgeek blog has several intersting articles on show control →
One Arduino based CNC project on display Device thay recycles 3D printer waste plastic to new filament Pong game built using analogue circuits and discrete logic ICs Make your own electricity for LED light Posted from WordPress for Android →
Network switches come in two different flavors: managed unmanaged. Unmanaged switches are cheap but you can’t control them. Managed switches have some interface to configure and monitor the equipment, and cost much more. Watch as Jim Gibson explains why you need managed switches in your network. For a hacker perspective you might ask how different those two →