How to add USB to radio controlled sockets « befinitiv. Radio controlled sockets are a great way to save power in your home.
Devices consuming more power on standby than the sockets do can easily be switched off with a remote. For example my desk lamp from a swedish furniture store consumes 10x more power (in the off state) than a radio controlled socket. Even if the sockets consume more power in standby than the attached electronic device, they offer the luxury of turning stuff off and on without even moving. In short: They are really handy. However, if you’ve installed the sockets, one sentence will often reoccur: Where the f*** is my remote?
» Adding web connectivity (via USB) to remote controlled sockets – Part 1 (hardware) Jake Rowan Byrne. This project page provides a guide to adding both USB and a Web based User Interface (UI) to remote control socket set.
In the process we will unlock even more capabilities than are available when you use the socket set as they were originally intended. Part 1 (this post) deals with the hardware, Part 2 deals with programming the chip and Web UI. It essentially builds upon this blog by [befinitiv] Kit Review – akafugu TWILCD Display Controller Backpacks. Introduction Working with LCD displays is always useful, for debugging hardware by showing various data or part of a final design.
Furthermore, using them can be rather wasteful of I/O pins, especially when trying to squeeze in other functionality. Plus there’s the external contrast adjustment, general wiring and the time taken to get it working. (Don’t believe me? See here). However, using the subjects of this kit review – you can convert standard HD44780 LCD modules to use the I2C bus using a small backpack-style board – bringing total I/O down to four wires – 5V/3.3V, GND, SDA and SCL.
In this review we examine both of the backpacks available from akafugu. The TWILCD: Supports 1×16 and 2×7 connectors. If unsure about your LCD, see the list and explanation here. Assembly The backpacks arrive in the usual anti-static bags: First we’ll examine the TWILCD board: Blog » Blog Archive » Finger print sensor with Arduino. Blaise Jarrett's Portfolio. This project enables your microcontroller to communicate in real time to a web browser.
I started this project after seeing a similar implementation on hackaday from mbed.org. Their implementation uses their own device, the mbed Cortex-M0 beta. Microcontroller Projects: Nokia 1100 LCD Interfacing with Microcontroller. Displaying content on a normal alphanumeric display is very limited ,we have to be limited with the font size and we can't draw any graphics also. but convention Graphics lcd are really very expensive so here is the solution, you can use Nokia 1100 monochrome LCD to display your large font text and graphics . the reason behind using this LCD is ,it is really very cheap and can be powered with 3 volts supply. so it is really good for battery powered application.
Driver IC on this LCD panel is PCF8814 which even though has I2C protocol support - doesn't use it. Instead it uses simple bit-banging mechanism for communication. Adding USB connectivity to old benchtop tools. Improving the Beginner’s PID – Introduction « Project Blog. In conjunction with the release of the new Arduino PID Library I’ve decided to release this series of posts.
The last library, while solid, didn’t really come with any code explanation. This time around the plan is to explain in great detail why the code is the way it is. Why pay for Serial LCDs when you can make your own? Embedded-lab.com writes: HD44780 based LCD displays are very popular for embedded projects because they are cheap, easy to interface, can display characters, consume power lot less than seven-segment displays, and most of the present day compilers have in-built library routines for them.
However, the only disadvantage is that they require at least 6 I/O pins of microcontroller. Well, you may ask, isn’t that less than what seven-segment displays require? Yes, that’s true but there are circumstances where you don’t have left enough pins for LCD display. RF Link Receiver - 4800bps (315MHz) Description: These wireless receivers work with our 315MHz transmitters.
They can easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link. Since these are only receivers, they will only work communicating data one-way, you would need two pairs (of different frequencies) to act as a transmitter/receiver pair. Note: These modules are indiscriminate and will receive a fair amount of noise. Both the transmitter and receiver work at common frequencies and don't have IDs. Therefore, a method of filtering this noise and pairing transmitter and receiver will be necessary.
Features: 315Mhz RF link kit [WLS105B5B] - $4.90. Asbjorn Mikkelsen | 2013-02-04 I would like to buy only the receiver, as I want to use one transmitter to broadcast to multiple receivers.
Will the receiver be available on its own? Unfortunately, we do not sell it separately at present. RF Link Transmitter - 315MHz. Replacement: WRL-10535.
We are now carrying the same transmitter from a different supplier. 315Mhz RF link kits - with encoder and decoder [WLS106B5B] - $9.50. I want to connect 4 door to 4 receiver, when a door open, a light will go on at the other end. Is it the circuit I should choose for that purpose? If I understand, I have to solder a pin of the pt2262 so that every transmitter doesnt intefere one another. Transmitter Pin Size and Spacing What are the pins for the transmitter since they aren't the standard size? 433Mhz RF link kit [WLS107B4B] - $4.90. Hello, I need to broadcast sensor values (16 bits), to several receivers at the same time, 10 times per second (it means 10 messages of 16 bits per seconde). is it possible to use that 433 Mhz RF link for that ? Or does it take more than 100ms to send a message ? Thank you very much, Arnaud Hi, I purchased 3 units, but the range is very limited (i get less than 10m in direct sight of view).
Partlist Wednesday: NPN transistors. Every Wednesday we highlight a component from the updated partlist. This week: NPN transistors Transistors do lots of analog tricks, but we only use them to switch high powered stuff with a weak microcontroller pin. Usually an LED. See the IR Toy, #twatch, PICqueno, or USB POV Toy for the sad truth. We’ve standardized on the BC818 for most stuff. If you’re choosing a substitute part be sure to check the pinout. Verify your schematic and footprints too. RGB Accent Lighting with Remote Control.