Questions tagged [firmata]

Firmata is a protocol for communicating with micro-controllers from software on a host computer

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0answers
36 views

Setup Firmata for PC-less usage

I want to use an Arduino Uno with Firmata as a standalone datalogger for recording analog signals. I will use power banks to power the Arduino. How is it possible to setup Firmata pins once with PC ...
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1answer
121 views

How to work with analog readings using RPi and Firmata?

For context: I'm working on a whose goal is to sense the environment. This process is done using an Arduino Uno and an RPi. The easiest way that I found to perform communication between both boards is ...
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1answer
560 views

Firmata: how to set a particular pin to high on boot?

I'm working on a project that use J5, so is using the standard firmata, this project is using an opto 4 channel relay, when the board is booting the pins state are set to low, so as soon as I power ...
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1answer
509 views

Actual baud rate of UNO R3 Firmata protocol

Probably a silly question. But the Internet is confusing me. The Firmata website says the default baud rate is 57600. But AFAIK, the baud rate set for UNO R3 is 9600(In Windows device manager, it say ...
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2answers
725 views

Interface with mux-controlled LED rope

I'm working on using a GUI in Processing to control some LED rope from Adafruit, and using this multiplexer. I've gotten the following Arduino code working the way I want to cycle through the various ...
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1answer
496 views

Firmata C++ library for host?

Firmata seems to be a popular protocol for communicating between the Arduino and host computer. However, there only seems to be C/C++ libraries for the Arduino. Most Firmata libraries for the host ...
2
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1answer
631 views

Read/write data from 2 Arduinos simultaneously with Python

So for my project I have one Arduino Mega hooked up with a quadrature rotary encoder which is connected to the computer. An Arduino Uno is connected to a circuit I built, which in turn is connected to ...
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1answer
436 views

Can you save data to EEPROM using firmata?

I have a few Arduino boards connected to my computer running firmata and I want the computer to be able to differentiate between them even when I unplug them and plug them back into a different USB ...
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1answer
768 views

Reading digital port with pullup via Firmata

I've got a weird issue, probably something I'm missing but have no clue what. Got some simple float sensors connected to D2 - D5 on a Nano. Need internal pull-up to eliminate a floating value. Wrote ...
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2answers
563 views

Getting Firmata to control WS2801 LEDs

I am trying to control a strip of WS2801 LEDs through an arduino uno running firmata from Python on my laptop. I've written some basic code based on adafruit's library here (from line 187): from ...
1
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1answer
857 views

Issue in installing Arduino unit library and running with Firmata test application

I am trying to update the Arduino library via the library manager and I tried to download it from the link given in the firmata_test program: WARNING: Category '' in library ArduinoUnit is not ...
10
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1answer
2k views

Update Dynamically Tkinter Widget Scale from Arduino Ports using python and firmata

I'm having trouble trying to get Arduino digital ports values and set these values into a Python Tkinter Widget Scale. I'm using Python and Arduino with Firmata. I'm able to access my arduino board ...
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2answers
855 views

Example code and documentation on using Firmata communication in native Java

I have been trying for some time to get documentation on using Java and a Firmata client library for the communication between a PC and an Arduino. Please note I want to use Java only, i.e., not ...