Helping Others Helps Me
Embedded Hardware/ Software Development and News
Parking sensors have become a must-have these days given the crowded cities we live in, but instead of paying hundreds of dollars to get them installed in your car, why not building your own at home?
autoevolution: Super-Cheap Parking Sensors Built at Home with an Arduino. https://www.autoevolution.com/news/super-cheap-parking-sensors-built-at-home-with-an-arduino-142445.html
This is a brief introduction to the environment of development and visual programming for the platform Arduino, Visuino is a property of Mitov software and I alone take part making tests and some libraries not yet concluded.
The example is to realize an analogical lecture in my Arduino Uno of a sensor of temperature LM35 and this analogical information to open it in a display of lcd 16×2 classic with controller HD44780, the whole programming does in Visuino and the code example appears in the IDE of Arduino.
For more information about Visuino please visit the official web page:
http://www.visuino.com/
Also it can join the group of google
https://plus.google.com/u/0/communities/116125623808250792822
Or in Facebook
https://www.facebook.com/groups/861801593868581/
https://www.facebook.com/groups/arduino.uacj.iit.isdc/
Source: Nice! Visuino – Sensor of temperature using LM35 and display LCD 1 by Fredy Alvarez with @arduino
To get a HEX-code in your Attiny85 it is possible to use the Arduino as a programmer, but as you cannot load hexcode in your IDE, it involves using avrdude.
First of all, we need to get the Attiny85 clocked to 8Mhz.
Open up your Arduino software and upload the Arduino ISP sketch to your board.
Disconnect the board from your computer and attach the Attiny as shown here. Also make sure you download and install the Attiny core files as described in that article
Connect your Arduino board in again and choose these settings.
Tools – Board – Attiny85 @ 8Mhz (internal oscillator; BOD disabled)
Tools – Programmer – Arduino as ISP
Tools – Serial Port – COMx (x being the com port that your arduino is connected to)
Then select
Tools – Burn Bootloader.
Just to clarify, you are not burning a bootloader here. You are resetting the fuses in the Attiny to clock it at 8Mhz.
Next, get the firmware into the chip. With that I mean the hex file you want in your chip
We do that by using the arduino as a programmer. You should still still have the ArduinoISP sketch loaded on your Arduino.
Make sure your Attiny is still attached to your Arduino as described here and open a command prompt. (In your windows start menu type cmd or chose the terminal in Linux/Ubuntu).
Type:
avrdude
This will bring up a list of options explaining what everything does.
Only need a few of those commands.
This is what to type in cmd (on 1 line)
avrdude -c avrisp -p t85 -P comX -b 9600 –U flash:w:example_attiny85.hex:i
What does all that mean?
Avrdude… This calls the program-c avrisp… This tells avrdude which programmer you are using. The Arduino shows up as avrisp
-p t85… This is the avrdude code for Attiny85.
-P comX… This is the com port your programmer is attached to. (Change the X to suit your programmer.)
-b 9600… This is the baud rate (Use what is specified in the sketch loaded onto your Arduino.) .
-U flash:w:example_attiny85.hex:i This tells avrdude you want to write (w) the firmware (example_attiny85.hex) to flash memory (flash). The ‘i’ is at the end to tell avrdude what format it is writing in.
Avrdude should now read your chip, write to your chip, then read your chip.
If all goes well, you should get: avrdude done.
Source: Programming Hex-code on an Attiny85 with the Arduino
I just backed up this project on KickStarter
What is MicroLink GSM?
Tiny self-contained board that can do automation, alerts, cellular data, phone calls, SMS text messages, and more – USB plug & play.
Everything is getting high-tech — from phones to jewelry. It will not be surprising if, soon enough, we will see high-tech clothes. With the Internet opening tremendous opportunities, people are not shying away from utilizing them to create innovative and unprecedented things. In fact, a whole new category called “Internet of Things” has emerged, where objects are provided with unique identifiers that help them transfer data over a network without the need of a computer.
In an attempt to bring Internet of Things closer to people, a tiny board called Spark Core has come into the market.
The Spark Core with Chip Antenna is a very small WiFi development board that makes it very easy for everyone to create hardware that is connected to the Internet. In fact, the tiny chip is all you will need. Just power it up with the help of a USB connection or a battery, and you will be able to control LEDs, motors, and switches in addition to being able to collect data from its various sensors over the internet.
This core has an on-board controller that is actually a small, low-cost, and low-power computer that has the capability of running a single application. This micro-controller is the one that runs the show. In fact, it runs your software and tells the rest of the core what to do. This tiny little thing does not have an operating system like your computer and just runs a single application (that is also known as firmware or an embedded application). This application can very simple — made up of only a few lines of code — or extremely complex, depending on what you want to do with it.
The first and foremost goal of Spark’s creation is its ease of use. In fact, you can start off without any experience in using hardware or software.
If you are familiar with Arduino, you will love this chip. The core uses the same wiring and programming language as Arduino. It also has an accessory called Shield that helps you connect it to any standard Arduino shield.
The hardware design files — board design, schematic, and bill of materials — are open source as is the firmware. This makes it very user-friendly.
For more information check out their website.