It’s fairly easy to program a replacement keyless entry remote. Even better, what if you have two vehicles the same make, can they use the same remote? Absolutely! Also when the battery goes bad remotes may require to be re paired with the vehicle.
Programming a Replacement Keyless Entry Remote – [Link]
Armandas has posted his masters project. [via]
The design is based around a PIC18F66K22 microcontroller. The board has a switching power supply supporting an input voltages of up to 34V, five thermocouple channels, HD44780 LCD interface, a battery backed RTC and a microSD card slot.
The control unit interfaces with an electrical system (designed by my colleague) to control solenoid valves, motors and heating elements.
The programming was done in C and there is support for all the hardware except the RTC and microSD card.
Biofuel reactor control board – [Link]
Turn off the Heater behind Me… [via]
Ed Nauman had a bad habit of leaving his workshop at night without turning off the heater. His wife would get up in the morning and find – to her consternation – the workshop was plenty toasty. In the interest of keeping peace in his household, Ed decided to create a gadget that would save the energy spent through forgetfulness. He knew he could buy an off-the-shelf solution, but as he says, “Where’s the fun in that?” Instead, Ed turned to the world of thermostats and microcontrollers.
Turn off the Heater behind Me – [Link]
Smartphone garage door opener: [via]
The tuxgraphics garage door opener is not limited to just one type of smartphone. It does not require the installation of an app. It works with any phone that has a web browser built-in. This garage door opener can be used from an iPhone, from an Android phone or any data capable phone. It does not even have to be a smartphone.
Smartphone garage door opener – [Link]
The SPOT is a device that lets you adjust and trigger off-camera flashes remotely. It’s an essential tool for using artificial light. The creative possibilities that off-camera flash provides are endless. The SPOT has two modes of operation:
– As a transmitter it sits on the hot shoe of a camera and forwards electrical flash trigger signals from the camera to slave flashes via radio
– As a receiver it is connected to a small hot shoe (?system?) flash
Strobist Project Opensource Trigger – [Link]
MOSFET transistors are excellent choice for driving high current devices such as motors or high power RGB LEDs. They offer very low switching resistance and very small heat dissipation compared to bipolar transistors. This guide is designed to explain how to drive P-Channel MOSFETs with a microcontroller such as PIC or ATMEGA.
Driving P-Channel MOSFETs with a Microcontroller – [Link]
theiphoneguru.net writes: [via]
In this tutorial we’ll explore creating a home made IR trigger capable of firing your DSLR camera out of just a couple bucks worth of parts. Then we’ll show you how to use an iPhone app called DSLR.bot to trigger your camera, record GPS locations, shoot timelapse sequences and more.
Turn Your iOS Device into a DSLR Remote – [Link]
CustomCTRL is an Arduino-based system that can be developed into a total-home remote control through a smartphone.
CustomCTRL – home automation system – [Link]
Andrey Mikhalchuk writes:
Which remote is better — this universal remote or this iPhone? Of course iPhone is better!! It is naturally the best remote you can imagine. It is connected to the internet, so you can check the TV program. It has huge high-resolution touchscreen. And it is always with you. One problem with it: it’s not a remote at all. So let’s turn your smartphone into a remote.
Turn your iPhone into a Universal Remote – [Link]