Working with Firmata (v2.5) in Lua
Status
Working prototype
Requirements
OS: Linux
Language: Lua 5.3
Core functions implemented
- Get object:
local Firmata = request('Firmata.Ambassador.Interface') - Digital pin 3 read:
Firmata:DigitalRead(3) - Digital pin write:
Firmata:DigitalWrite({ Pin = 13, Value = true }) - Analog pin A0 read:
Firmata:AnalogRead(0) - Analog (PWM) pin write:
Firmata:AnalogWrite({ Pin = 3, Value = 1 / 256 }) - I2C device read:
Firmata:I2cRead({ DeviceId = 0x68, Offset = 0x00, NumBytes = 0x13 }) - I2C device write:
Firmata:I2cWrite({ DeviceId = 0x68, Offset = 0x00, Data = { 0x02, 0x52, 0x16 } })
First launch
- Clone
- Connect Arduino
- Flash Arduino with StandardFirmata
- Run
$ ./CLI_SmokeTest.lua- If it fails, change there
local PortName = '/dev/ttyUSB0'to your port name.- If it still fails, create an issue.
- If it fails, change there
Notes
-
For simple demo look to CLI_SmokeTest.lua.
-
As a sediments, there are set of command-line tools to get/parse/compile/set time from real-time clock module on DS3231. But I'll throw them later.
See also
2023-06-13