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3 votes

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

It would seem you are right. If I understood the source correctly, Firmata initializes all digital pins as OUTPUT LOW. Hard to believe, as this seems like a silly thing to do... My understanding is ...
Edgar Bonet's user avatar
  • 43.3k
3 votes

Arduino: command not found

Instructions to installing and binding the Arduino CLI can be found at https://github.com/arduino/arduino-cli#getting-started Once you install the binary, copy the executable into a directory which ...
Matthew's user avatar
  • 151
1 vote
Accepted

Trying to do hello world app for Nokia 5110 LCD with arduino yun and johnny five

Arduino Yun is a ATMega32U4-based board, like other ATMega32U4-based Arduino boards, such as Arduino Leonardo, Micro, the SPI is only available on the ICSP header: MOSI - Yun has it on ICSP Pin 4 ...
hcheung's user avatar
  • 1,416
1 vote

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

Just put digitalWrite(anyPin,HIGH) in void setup() this will make that specific pin HIGH to reset. It works for me. void setup() { digitalWrite(8,HIGH); Firmata.setFirmwareVersion(...
bilaltehseen's user avatar
1 vote
Accepted

Johnny-five driving LCD Matrix or call Arduino library from Johnny-five

After research, it can't be done, as J5 use firmata to drive the Arduino, the only way is to write a library to use with.
Leze's user avatar
  • 111
1 vote

Johnny Five LCD: black boxes only

Try changing the resistance in your 10k potentiometer. This might be a reason for the black boxes. P.S: I.m a beginner too.
Faraaz Ahmad's user avatar

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