I want to talk to devices that are connected to an Arduino from the Processing IDE and interface with the I2C communications protocol. The processing language is used to send command and data bytes to the arduino with the Firmata protocol. This is done with an existing arduino and Firmata library. I have been going through the library and it seems that there is functionality on both the Arduino and Processing sites to support I2C communication to devices connected to the Arduino, but there is no method to do that from processing. I have tried to create a method to do that but I couldn't get anywhere.
Can someone please help me ?
To anyone who might be interested of, I have found a solution to extend Processing Firmata Library to support additional features.
Based on this tutorial http://www.instructables.com/id/Going-Beyond-StandardFirmata-Adding-New-Device-Sup/ you have to edit Processing Arduino and Firmata Library, which are written in Java. Then compile the two and replace them in the source folder.
Then follow the tutorial to extend the Arduino Firmata Library on the Arduino end.
Related
I am using an adafruit BLE SPI friend, an nRF51 series BLE module. Eventually I will have to set it up to work with an STM32 microcontroller. Is it better to program it with a SPI library on an arduino uno to receive BLE data on a bluetooth receiver (iphone), or should I use any kind of Nordic Semiconductors/program IDE to make the device programming more robust. I would also like to add GATT settings, but really this is my first time working with SPI BLE so I'm not sure how to go about it. Any suggestions? (Also, I am not sure the adafruit library for the device is all that helpful, it seems to sacrifice bandwidth and some functionality for compatibility with their bluefruit app and other of their devices)
I want to make an Arduino program that only makes requests for voltage measurement of some sensors through the SCPI protocol connected by RS232. I have found several libraries created by users but they have many unnecessary functions for what I want to do.
Specifically, what is the command to be sent by the RS232 to request the desired sensor voltage?
Thanks.
Try using : Arduino SCPIParser Library by LachlannGunn available on GitHub.
I recently bought a ESP13 wifi shield which has to mount on to Arduino. I think it is much similar to esp8266 modules, but unable to find a proper guidelines/libraries relevant to it. I did not notice any helpful tutorials also. Here, I want to use this module to run as a wifi server.
An ESP13 is an ESP8266. It is version ESP-13.
It is not a WiFi shield for Arduino; although you can connect it to an Arduino via serial pins and use its WiFi capabilities.
The ESP8266 ESP-13 is a stand alone device. It combines a processor with WiFi so you don't need an Arduino for simple jobs (or not that simple; I use mine to receive REST commands and run 60 addressable LEDs in pretty patterns).
There are lots of resources for ESP8266s:
For example: https://tuts.codingo.me/introduction-to-esp8266-module.
Note that the pin locations change between versions so look out for that when making circuits.
I am new to Arduino and I would like to do a project that sends data, remotely. So, the Arduino would not be connected to Wifi/Bluetooth, Ethernet, etc. Would using a GSM shield be the best way to transfer data? I do not need to make phone calls or send SMS (unless sending SMS would be a better, more reliable, option) just data to a server, who's app I would create. If this is the best option, what else would I need to make this happen? For example, on top of the GSM shield (I am looking at something cheap like this: https://www.amazon.com/Geeetech-SIMCOM-Quad-band-Development-Arduino/dp/B00A8DDYB6/ref=sr_1_2?ie=UTF8&qid=1467651878&sr=8-2&keywords=Arduino+GSM+Shield) what other charges would I need to pay? I.E. would I also need to get another phone plan? Would I have to pay for a gateway service that would receive the cell phone data and then send it to my server?
Thanks your any thoughts on this
Wifi, ethernet or GSM, it depends on what you want to use, and what you have.
With all three you can send data to a server.
There is a bench of Arduino shields. All shields from Arduino come with a library to handle communication.
Other shields from other vendors exist and they provide their libraries too.
For Ethernet you can check the arduino shield https://www.arduino.cc/en/Main/ArduinoBoardEthernet.
For Wifi there are plenty. You have first the arduino shield. You can also take a look at the CC3000. Or the famous ESP8266. For all three you can find libraries.
For GSM, Arduino has a shield and a library. Arduino uses the Quectel M10 GSM moduel. You can find lots of examples in the arduino website and all over the net (https://www.arduino.cc/en/Guide/ArduinoGSMShield).
There exist other shields like the one you mentioned. Libraries does exist for those "other" shields however they are not as maintained as the arduino one.
You need to be careful though, you'll find over Amazon (and most likely on Alibaba) some GSM modules like SIM900A that are way cheaper, those are only dual band and will work only on certain contries.
There is another cheap GSM Module called the A6. It was made by espressif the company behid the ESP8266. It's relatively new and no library exist for it at the time. You can write you own functions to use it, but that would be some extra work.
In all cases, to use a GSM module you'll need a sim card with it's phone plan and all.
Another thing to consider is how to power these shields. They use more power than an Arduino can generate (A GSM modules datasheet recommend to use a power supply that can deliver up to 2A). If you power them straight from the Arduino, you may encounter some strange behaviour.
So the ideal way is to have for them an external power supply with the required amps and have a commun ground with the Arduino.
I am new to arduino and just picked up myself an UNO and an ESP8266 module. I've managed to wire them all up properly and connected to my home network using the AT commands.
But now im trying to follow tutorials on the internet but the problem is every example includes a library
#include <ESP8266WiFi.h>
such as this example tutorial https://learn.sparkfun.com/tutorials/esp8266-thing-hookup-guide/example-sketch-ap-web-server
So I have tried googling for it but can't find anything. I'm assuming thats because its really simple and Im missing something quite obvious.
help?
If you wish to use the Arduino as the main part of your ESP8266 project, there are several ways to go.
Use the Arduino to issue AT commands to the ESP8266.
Create your own protocol or messaging system by programming up the
ESP8266 with (for example) nodemcu or the Arduino/ESP8266 project or
Espressif or others, then program up your Arduino with the same
protocol or messaging system so the two may talk.
Alternatively, just program your ESP8266 directly. No Arduino required. Doing so, you can turn the tables and get the ESP8266 to issue messages to the Arduino if for example if you wanted the many GPIO and sense pins of the Arduino to do something. If you only need a couple of extra GPIO pins, look at the ESP8266 range to get more GPIO pins, such as the ESP8266-12
Which to choose?
nodemcu will give you a good idea of the capabilities of the ESP8266
and may be a good starter, easy to flash, easy to program, but it is a poor finisher except for the most basic of programs.
espressif has a large toolchain, not pleasant to flash,
you'll be at the cutting edge, however the community support is
minimal
The Arduino/ESP8266 project is awesome, easy to flash, very fast,
very stable, and unlike nodemcu you can create a large project. As you noticed, any arduino project starting with #include <ESP8266WiFi.h> is not for the arduino, but for the ESP8266 using the arduino IDE https://github.com/esp8266/Arduino
The Sparkfun example, it's for the ESP8266 Thing and it's using the Arduino ESP8266 Core, to flash the module.
It's not Arduino code that communicates with the module over serial. You need to upload this code to ESP module and with the Arduino ESP8266 Core, it's possible to program the ESP directly from the Arduino IDE.