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Found 11 results

  1. Hello Everyone,We are pleased to announce the launch of our online store - Mynics.All of you are requested to check the website and do give us your valuable feedback.You can do the following at Mynics.in- Shop for electronics and robotics- Blogs- Forums- Projects and VideosWe are soon rolling out some great competitions and offers, do follow us to stay updatedhttps://www.facebook.com/mynics.in/http://stalkture.com/p/mynicsinsta/4934651665/https://plus.google.com/104613178419222567531Time to show your creativity and leave the rest to Mynics.Cheers,Team Mynics.
  2. HI CAN I USE 12V 2A DC POWER ADAPTER FOR MY ARDUINO UNO ?IS THEIR ANY LIMITATION FOR CURRENT???
  3. Hi all, I found a ver very good and really cheap pcb service! Its called PCBWay, and they have cheap 2layer 10x 10x10cm pcb for just $5! and shipping to the Netherlands was just $7!(china post) And they have real good and very kind customer service witch reply back very fast and every question i had got answered in not time AND they give you $5 free for your first order! Pcb's look good and came fast. All pcb's where exported with eagle. I got 2 extra pcb's(win win) probably if a pcb fails check or something. I used blue silkscreen with white text for the pcb and also bought some project pcb's with holes wich i got in 5 collors and look absolutly great! The blue silkscreen looks absolutly perfect, its really perfectly alligned! and the text looked good, it looked a little bit blocky but still it looks great! I ordered pcb's for a adafruit solar charger clone as i needed 9 of them and just didnt have the money to buy them. Since i already had all the components i needed exept the pcb's i just bought the pcb's since their charger is opensource and created them my self to save some costs.(i'll probable sell the last one i dont need) At first i thought if i had to buy the comonents also it all would be more expensive but i calculated if i wanted to create 10 solar chargers and bought all components from aliexpress and bought the pcbs from pcbway i save around $30 to my suprise!!!!!(first time self build a product is cheaper then buying) The chargers are for my solar powered raspberry pi zero powered wireless timelapse and livestream camera's, witch will be mounted in my backyard pointing at bird homes and one as security camera for my back yard gate to watch intruders. I already finished one of the charger and it looks really really impressive with the blue silkscreen! I'll maybe upload some pics of my assembled pcb's and bare pcb's soon for other peaple to check and i am probably going to clone the adafruit powerboost 1000 charger too!(because its cheaper offcourse, i still bought a lot of products from adafruit so i am still supporting them). The pcb's are of good quality, no broken or half traces, all boards are straight and not bend, all boards got the silkscreen and white text right so they just look amazing! I really really recommend this service to everyone and i am defenitly going to try their 4 layer too some time!! And they also offer cheap assembly services so maybe i will try that sometime too! Since i am very very and very happy with my pcb's i am defenitly buying from them again and again in the future and recommend them to everyone! So now i want to know who else used this service and had good experience or wants to try it out? hope to hear from you all!
  4. Hi guys,Lovely community here. So i got into the bandwagon of the ESP32. I am planning to build an entire data acquisition built around the ESP32. Would really appreciate it much if i were to get help from all of you. It would be a learning experience for all of us. So basically here are my project details and list of components being used.A 32 Channel Data acquisition system with 30 sensors measuring strain (momentarily using a metal gage strain sensor of 120Ohm being fed to a quarter bridge circuit) and 2 temperature sensors(PT100). I would like an acquisition speed of atleast 1000Samples/Sec per channel. So here is my idea as of now.32 Sensors connected to its each wheatstones bridge. The amplifier is done using the XR18910/XR10910, which is a 16:1 bridge Mux interface with selectable gain. I have attached link https://www.exar.com/content/document.a ... rt=XR10910The XR18911 can be controlled via I2C link. it does all the amplification necessary. I will need to use 2 XR10910 or 4 XR18911(8:1 sensor interface). And then finally controlled by our LEGENDARY ESP32 which converts the analog data to digital. and with the help of wifi to transmit it to a computer where it can be collected in an excel file along with time of capture.Could you guys kindly help me out on how i am to proceed with programming of the ESP32. I would really prefer to use Arduino IDE guys, as that seems to simplify things. Also if there is any improvements that could be added to the circuit. Kindly let me know. Please let me know if you need more details(Picture attached). Thank you
  5. Hi, I've been working on replacing the two 10k potentiometers for voltage and current control with two rotary encoders. The idea is to get (theoretically) arbitrarily fine control via software on an ATMega328P microcontroller. The microcontroller would also be in charge of outputting desired and measured voltage and current values to an LCD. Since I haven't found any suitable digital potentiometers I figured I'd simply generate the analog voltages for the non-inverting inputs of U2 and U3. U2 gets a voltage between 0 and 10V using the uC's PWM output, a low pass filter and an op amp. Points 5 and 10 are connected with a 10k resistor. This part is working brilliantly so far. However current limit control is giving me some trouble. Again points 6 and 11 are connected with a 10k resistor and the non-inverting input of U3 is fed with an analog voltage between 0 and 1.4V (again via PWM and low pass filter). To test the setup I shorted the outputs of the supply with my multimeter, turned up the voltage to about 10V and then slowly increased the current limit. Seemingly at random one of the following scenarios occurs: The current limit increases way too fast (the microcontroller sends the signal for .5A but the multimeter already reads 3A) The current limit increases fairly accurately as it should. The current limit gets stuck and then goes haywire at some 16A and Q4 lets the magic smoke out. Am I wrong in thinking I could generate U3's input voltage isolated from points 6 and 11? If I'm not just being stupid somewhere else my suspicion is that my approach kills some vital feedback path... I'd appreciate any input, thanks!
  6. Hello friends, hope you all are fine and having fun with your lives. In today’s post we are gonna have a look at How to use Temperature Sensor 18B20 in Proteus ISIS. I will use Arduino board as a microcontroller and will connect the temperature sensor with it and then will display the code on LCD. I have already posted the same tutorial in which I have done Interfacing of Temperature Sensor 18B20 with Arduino but in that project I have used the real components and designed the hardware. But today, I will just show you the simulation so that you could test the simulation first and then design it in hardware. Temperature Sensor 18B20 is the most commonly used temperature sensor. Its a one wire sensor means it sends data through a single wire and we can connect multiple sensors with a single wire, that’s why its quite efficient and easy to use as well. I have also posted a tutorial on How to Interface LM35 sensor with Arduino in Proteus ISIS which is another temperature sensor so give it a try as well and let me know which one you think is better. Anyways let’s get started with temperature sensor 18B20 in Proteus ISIS. HOW TO USE 18B20 IN PROTEUS ISIS First of all, get these components from Proteus components list as shown in below figure: Now design the circuit as shown in below figure: As you can see in above simulation, we have used Arduino UNO board along with LCD and 18B20 temperature sensor. 18B20 in Proteus can’t detect the real temperature but we can change the temperature by pressing + and – buttons. So, now we have interfaced the temperature sensor and the LCD with Arduino. Next we are gonna design the code for Arduino and will upload it in Arduino baord. Note: If you don’t know How to use Arduino in Proteus then read Arduino Library for Proteus. You should also read How to get Hex File from Arduino, as Arduino software doesn’t generate the hex file. Now download these three libraries, one is “one wire” library which is the protocol for 18B20 temperature sensor, next is the Dallas Temperature sensor library which is the actua library for temperature sensor 18B20 and uses one wire library. Third library is the Crystal LCD library which is used for displaying character on LCD. So, download all these three libraries by clicking on below buttons and then paste them in your libraries folder of Arduino software. Download One Wire LibraryDownload Dallas Temperature LibraryDownlaod Liquid Crystal Library Now after adding these libraries, open your Arduino software and paste the below code into it. #include <OneWire.h> #include <DallasTemperature.h> #include <LiquidCrystal.h> #define ONE_WIRE_BUS 6 OneWire oneWire(ONE_WIRE_BUS); DallasTemperature sensors(&oneWire); LiquidCrystal lcd(12, 11, 5, 4, 3, 2); void setup(void) { Serial.begin(9600); Serial.println("Welcome to TEP !!!"); Serial.println("www.TheEngineeringProjects.com"); Serial.println(); sensors.begin(); lcd.begin(20, 4); lcd.setCursor(5,0); lcd.print("Welcome to:"); lcd.setCursor(1,2); lcd.print("www.TheEngineering"); lcd.setCursor(4,3); lcd.print("Projects.com"); delay(5000); } void loop(void) { sensors.requestTemperatures(); Serial.print("Temperature : "); Serial.println(sensors.getTempCByIndex(0)); //lcd.clear(); lcd.setCursor(0,0); lcd.print("Temperature: "); lcd.print(sensors.getTempCByIndex(0)); lcd.print("C"); delay(1000); } Now get your hex file from Arduino and upload it to your Proteus Arduino board and hit the RUN button. If everything goes fine then you will something like this at the start: After a delay of around 5 sec you will start receiving the Temperature sensor 18B20 values on your LCD as shown in below figure: Now you can see the value shown in the temperature sensor is the same as in LCD. So, now by clicking the + and – buttons on temperature sensor, you can increase and decrease the value of temperature and same will be changed in LCD. That’s how you can do simulation of Temperature sensor 18B20 in Proteus ISIS. Its quite simple and easy to use. That’s all for today, hope you get some knowledge out of it.
  7. Are u looking for a way to connect the Arduino to the internet easily? Do you want to develop your IoT project quickly without much hassle? ARMA IoT might just be the thing for you! The simple and efficient Arduino shield is powered through a esp12f wifi module, which enables it to be connected to the wifi network. it also has an SD card slot for for extra data storage like its wired brethren the Ethernet Shield. The ARMA IoT goes a step further and provides an easy plug and play feature for most of the common devices such as sensors, motors, LCDs and relays. The ARMA IoT is a great place for beginners to start their IoT project, as it requires minimum time to setup the hardware all thanks to the plug and play feature. Even the programming is simplified through the help of apps such as Blynk, which provides easy feature of controlling the Arduino through your Android or iOS phone. Thingspeak an upcoming IoT platform is also supported by the shield. The ARMA IoT platform proves as a tool for aspiring beginners and also a prototyping tool for advanced users. IoT products can be developed much faster with the help of this board. Weather it is creating a simple IoT project such as blinking LEDs or controlling relays, or developing your own Home automation system, the ARMA IoT facilitates it all and things seem to happen rather quickly with all the features provided on the board. The wifi connection feature can provide fast communication between devices or two instances of ARMA itself, making it applicable for simple swarm robotics, wireless controllers etc. The applications can also be extended to simple robotics, Energy management systems and it does not stop there as it all depends upon the users creativity. To get started simple tutorials are provided on the YouTube page of ARMA IoT, the link below guides on the setup of Arduino and ARMA IoT with the help of Blynk app More tutorials and projects will be posted to help you make the most of the shield. Of Course there are also various DIY communities that can provide you with both support and inspiration for your upcoming IoT projects. thus ARMA is another simple board that has the ability to bind many devices together. The ARMA IoT is still undergoing a crowdfunding campaign in Indiegogo and is available for pre-order. https://www.indiegogo.com/projects/arma-iot-breakout-board-for-arduino#/
  8. Simple Wav Player Using Arduino

    Integrated with the homemade low-pass filter, this Arduino-based simple WAV player is to send out PWM signal generated by UNO, then through the low-pass filter and make the PCM data stored in the flash of UNO into sounds. Basically, the player cannot be regarded as a pure WAV playback, because by extracting the data from the WAV file and storing it in an array format in UNO, this tutorial is for reference. You can make SD card based WAV player by referring to this idea. The WAV player is easy to make on different platforms and applicable for various scenarios like voice broadcast system, electronic keyboard, as long as you understand the principle of sound. The hardware: 1.USB mini speaker 2.Digital push button 3.Freaduino UNO 4.4×6 cm universal board 5.Dupont line 6.Audio port more imformation >>>http://www.tenco-tech.com/article.php?id=94
  9. Yún – Wifi connection

    Starting with this post, you’ll find on my website a tutorial about the new Arduino Yun: I’m going to blog about my experiments with that board and show its features through real examples… today you’ll learn how to connect it to your wifi network! Yun and wifi One of the most useful features Arduino Yun has is the ability to connect to wired (Ethernet) or wireless networks without the needing of an external shield. I decided to supply my Yun using an external micro USB power supply (power supplies for modern cellphones works fine): By default, Arduino Yun acts as an access point, broadcasting an unprotected wifi network with Arduino Yun-xx SSID: After having established a connection, your PC obtains an IP address on the network 192.168.240.0/24: You can reach the administrative interface of Arduino Yun pointing a web browser to the address http://192.168.240.1. The default password is arduino: After having logged in, click on configure: You can change the board’s name (in the screenshot I chose Yun-Luca), the password, the timezone and connect the Yun to one of the wireless networks it detected: After a reboot, the board will be connected to your network! Upload via wifi Now you can use a new feature of Arduino Yun: the ability to upload a sketch using the network, without the needing to connect the board to your PC using a USB cable. Open the IDE (warning: you must download the latest version, at the moment I’m writing 1.5.4r2) and choose Arduino Yun as your board. The IDE will scan your network searching for Yun boards and, under the port menu, will display your board and its IP address: You can now compile and upload your sketch as usual… when the upload process will start, you’ll be prompted for the Yun password: SSH terminal You can also connect to your Yun in text mode, using an SSH client (for example PuTTY per Windows)… in the next posts you’ll discover why this can be useful: For more details,please refer to original post http://www.lucadentella.it/en/2013/11/05/yun-collegamento-alla-rete-wifi/
  10. Project with Arduino to share... I have tried to make a similar one befire, but it failed. Hope this article helps you like it helps me.
  11. I am quite new to Matlab, I heard that its quite easy to rotate servo to any precise angle using matlab. I have tried searching but not getting proper procedure, also tell me some good resources to learn Matlab?