Arduino Projects and Circuits
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After some days of thinking about electronic fuel injection for a moped, ive decided to take it on. Parts come up to , and the rest is programming. ... -
Many educational haptic feedback devices use kinesthetic force feedback devices such as the Novint Falcon and the Phantom Omni. Although these devices are relatively cheap compared to other high end haptic feedback devices, they are still expensive for.... -
After buying an arduino and some 8x8 LED matrices I really needed a project to make good use of them. At a similar time I also had become a bit addicted to twitter and had been reading up on the API with the intention of doing something cool with it, somehow.... -
.jpg "Arduino Clock Based on PCF8563")
In this tutorial, the Arduino displays the time and date on a LCD (optional) and in the Arduino IDE serial monitor window. A PCF8563 real time clock (RTC) IC is used to generate the time and date. The time and date can be set using the Arduino serial monitor.... -
The idea behind this post is to bring together some robot designs and trasform them in a new device with new hardware and standard software (arduino of course) and so easier to use. These robots have three things in common: a mechanical structure, the.... -
In this article we make digital thermometer on the Arduino Uno. In this Digital Thermometer temperature sensor used is LM35DZ. In other applications you can replace with LM35 temperature sensor such as DS18B20 and others. In principle, the sensor will detect.... -
Here the Arduino UNO schematic diagram (click to enlarge): About Arduino UNO: The Arduino Uno is really a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 may be employed as PWM outputs), 6 analog inputs, a 16 MHz.... -
The Dogm-graphics-module should be connected to the Arduino board as shown below. Pin 12 (MISO) of the Arduino board must not be used. Additionally the Dogm-graphics-module requires an addess line (A0) which can be connected to any output port. The following.... -
I have since constructed a programming "jig" to avoid keeping the circuit on the breadboard. More detail, and photographs can be found on the Learning About the AVR Parallel Programmer page. .. -
So, it turns out that I`m probably not going to use the Hijack approach to getting serial data from my Mindflex into my iPhone. This is mainly due to the fact that I have the majority of the components to build a similar system from scratch. The difference.... -
Now, to perform LED blinking in varying speed, we are sure, that we need to somehow change the delay time of an LED to remain in ON and OFF stat. So the main funda is to change the argument to function delay with change in time that`s it. Here, first we.... -
On the breadboard, build two bi-directional motor control circuits (also known as "H-bridge") circuits. These circuits will control the two DC motors that drive the wheels. Each circuit will have two wires from the Arduino (one for forward, one for backward).... -
Markus built a software AM radio transmitter using the Arduino. The audio signal is fed to the ADC input through a decoupling capacitor. A PWM output pin directly drives a capacitor inductor circuit with an antenna. The schematic and firmware are available... -
For an upcoming project I needed a pneumatic ram with a closed loop control system so I could position it accurately. Didn`t have the budget for an off the shelf solution, so I bodged one together with an ardunio, a couple air solenoid valves, and a pair of.... -
I`ve been putting in a lot of extra hours at work the last week in anticipation of an editing deadline. Despite this, I thought it was about time that I attempt a little hardware hacking. Even before computers, I was facinated by electronics. I read book.... -
I needed a couple of AA batteries and found the display at the supermarket where they were all arrayed. Normally when I`m shopping in the supermarket, I tend to look at the price/kg or price/l when comparing similar products. In the case of the batteries,.... -
Following a highly successful Kickstarter project and over a year of development, HexBright, billed by its creator as the world`s first open source Arduino flashlight, is now in production with initial shipments planned for December. HexBright, which we.... -
This section of code outlines the main sequence of operation for the sequencer. First, a for loop is utilized to govern which step the sequencer is operating in. Within this loop, first an address is made using the assignByteToPins() function, this sends a 4.... -
We built a system that uses eight air-clamping cylinders (McMaster-Carr 62185K64) to push down on a piece of glass to seal it to a sidewall. A number of times, the glass has cracked. So, this project is an attempt to come up with an inexpensive way of.... -
Arduino sketch and other useful information about driving a brushless DC motor, such as DVD drive spindle motor, using Arduino or another MCU.. -
Building a stroboscope (zoetrope) from Arduino and the spindle motor of a broken Xbox 360 DVD drive. Zoetrope animations, Arduino sketch and circuit diagram included.. -
While I`m getting ready to rip open some 10+ broken DVD-RW drives coming to me from an eBay seller, I though it would be great to have a testbed for the bipolar stepper motors I will harvest from those. I have a bunch of ULN2803AG Eight Darlington Transistor.... -
A simple circuit that can be used for testing of bipolar stepper motors or for manual positioning using steppers. Schematics, Arduino sketch and video here.. -
Convert a nice but ordinary chocolate box into a raging LED Blinking Inferno with ATTiny13 AVR chip, Arduino IDE and a handful of electronic components.. -
Smart Valentine`s Day gift - a movement-sensing box of chocolates with an LED message! Circuit diagram and How to build the project on ATtiny13 and Arduino... -
A video and the circuit with schematics for connecting and controlling the world`s smallest linear actuator based on a bipolar stepper motor from a Bluray drive... -
FT232RL USB to Serial UART (TTL) Adapter is a simple and inexpensive way to connect PIC, AVR or ATMEGA MCUs to a PC or Mac via USB connection. FT232RL is an impressive chip because it implements full v2. 0 USB protocol, needs no external crystal, has.... -
The piezo element is only connected to Channel 1 (Arduino A[0] port). The channels Ch 1 Ch 6 are connected to female mono jacks and the ground(GND) wiring is in series from jack 1, 2 and 3 so on. till the Ch 6 end to the Arduino GND port. Taped 3 times 787 0.... -
Hooked up an electret mic into an opamp and gave output to my arduino microcontroller. The ADC on the microcontroller converts a range of 0 to 5 vV to a 10-bit number (0 to 1023). The problem is that the output from the latter two chips is not "clean". The.... -
30 incandescent lightbulbs be controlled by my arduino uno on 3 channels (10 bulbs to a channel in parallel). I`ve used the arduino before to control a number of red, green and blue LEDs - I used a simple schematic using three transistors. I`m just not sure....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
This circuit was described in a recent edition of an amateur radio magazine. It allows operation...
This be Power Pulse Generator Circuit, by use the integrated circuit NE555 be Square wave...
Cigar Lighter Plug to USB Power Socket. This circuit is convert 12V DC source from car cigar...
Although there are many different configurations for Crystal Oscillators, the most common are the...
A microphone amplifier that may be used with either Electret Condenser Microphone (ECM) inserts...
The signal from MSP430 PWM pin isn`t quite ready to drive a speaker or amplifier. First, we can...
This web page describes the radio transmitter unit that flew aboard the Cirrus One rocket in...
The regen is basically an oscillator circuit with a gain control that allows the user to adjust...
VCO is definitely useful in so many RF projects, wide band Ghz VCO get more concern than VHF/UHF...
Solder aid is an extremely useful device which sucks the poisonous gas due to melted soldering...
By the transistor VTi, VT2 composition self-excited multivibrator output signal VT3 put large...
Current amplifier circuit configuration is shown in Fig., Followed by a two-stage operational...