pimatic / pimatic-lcd

pimatic support for LCD Displays using i2c serial bus.

pimatic

This project is no longer maintained!

pimatic is a home automation framework that runs on node.js. It provides a common extensible platform for home control and automation tasks.

Read more at pimatic.org or visit the forum.

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Installation instructions can be found on pimatic.org. If you need any help, please ask at the forum.

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We promise, that pimatic will always be free to use and its code be open sourced.

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Architecture Overview

+-------------------------------------------+
| mobile-  | rest- | cron | homeduino | ... |  Plugins (Views, Device-/Preidcates-
| frontend | api   |      |           |     |  Action-Provider, Services)
|-------------------------------------------|
| pimatic (framework)                       |  Framework
|-------------------------------------------|
| rule   | device    | (core)     | (core)  |  Model
| system | schemata  | predicates | actions |
|-------------------------------------------|
| node.js (non-blocking, async IO,          |  Low-Level Infrastructure
| event-loop, v8)                           |
+-------------------------------------------+

Extensions and Hacking

The framework is built to be extendable by plugins. If you have devices that are currently not supported please add a plugin for your devices. As well, if you have nice ideas for plugins or need support for special devices you are welcome to create an issue or submit a patch.

For plugin development take a look at the development guide and plugin template.

Feel free to ask development questions at the plugin template repository.

Copyright / License

Copyright (C) 2014-2019 Oliver Schneider <[email protected]>
and contributors


pimatic is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

pimatic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with pimatic.  If not, see <http://www.gnu.org/licenses/>.

pimatic-lcd's Issues

device connected @ /dev/usb/iowarriorX

Hi there,
it is not possible to connect 44780 display to USB Port with IOWarrior24 Device; shouldn't this also work via /dev/usb/iowarrior0 or /dev/usb/iowarrior1? thank you in advance.

init log info:
Unhandled rejection TypeError: Failed to set address
at TypeError (native)
at i2c.setAddress (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/i2c/lib/i2c.coffee:38:10)
at i2c.writeByte (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/i2c/lib/i2c.coffee:57:6)
at i2c.tryCatcher (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/util.js:16:23)
at i2c.ret [as writeByteAsync] (eval at (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/promisify.js:184:12), :13:39)
at /home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/lib/lcd.js:68:26
at tryCatcher (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/util.js:16:23)
at Promise._settlePromiseFromHandler (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/promise.js:510:31)
at Promise._settlePromise (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/promise.js:567:18)
at Promise._settlePromiseCtx (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/promise.js:604:10)
at Async._drainQueue (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/async.js:143:12)
at Async._drainQueues (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/async.js:148:10)
at Immediate.Async.drainQueues [as _onImmediate] (/home/pi/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/release/async.js:17:14)
at processImmediate [as _immediateCallback] (timers.js:383:17)

Pimatic-LCD error Cannot write to device at i2c.writeByte

Hello,

I am facing an issue with pimatic-lcd or i2c plugin. I am using lcd to display current temperature and time based on rule every 5 seconds. After few hours lcd stops responding with following error:

debug [pimatic]: Error: Cannot write to device at i2c.writeByte (/i2c.coffee:58:10) at
i2c.tryCatcher (/root/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/util.js:24:31) at i2c.ret [as writeByteAsync](eval at
%28/root/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/promisify.js:154:12%29, :12:39) at /root/pimatic-
app/node_modules/pimatic-lcd/node_modules/i2c-lcd/lib/lcd.js:72:26 at tryCatcher
(/root/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/util.js:24:31) at Promise._settlePromiseFromHandler
(/root/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/promise.js:454:31) at Promise._settlePromiseAt
(/root/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/promise.js:530:18) at Async._drainQueue (/root/pimatic-
app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/async.js:84:12) at Async._drainQueues (/root/pimatic-
app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/async.js:89:10) at Async.drainQueues (/root/pimatic-
app/node_modules/pimatic-lcd/node_modules/i2c-
lcd/node_modules/bluebird/js/main/async.js:14:14) at process._tickCallback (node.js:415:13

Firstly I thought that it is hardware isssue but python script is running ok
python2 /root/python-i2c-lcd/display.py test1test2test3~test4
Only pimatic restart helps but just for few hour...

Thank you for any idea how to fix it.
BR, Michal

Raspberry pi 7" Display ?

is it possible to connect to the new raspberry pi2 display please?

hardcoded address?

Hi,

here is something wrong, my lcd runs on i2c-1 address 20

/usr/local/pimatic-app# i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

I can display whatever i want with some python scripts,

This dont work for me
{
"plugin": "lcd",
"bus": "/dev/i2c-1",
"rows": 2,
"cols": 16
},
This also dont work:
{
"plugin": "lcd",
"bus": "/dev/i2c-1",
"address": 20,
"rows": 2,
"cols": 16
},

19:40:19.375 [pimatic-homeduino] info: Connected to homeduino device.
Possibly unhandled Error: Cannot write to device
at i2c.writeByte (/usr/local/pimatic-app/i2c.coffee:51:10)
at i2c.writeByteAsync (eval at makeNodePromisifiedEval (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/main/promisify.js:201:12), :12:22)
at /usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/lib/lcd.js:68:26
at tryCatch1 (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/main/util.js:45:21)
at Promise$_callHandler as _callHandler
at Promise$_settlePromiseFromHandler as _settlePromiseFromHandler
at Promise$_settlePromiseAt as _settlePromiseAt
at Async$_consumeFunctionBuffer as _consumeFunctionBuffer
at Async$consumeFunctionBuffer (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/main/async.js:40:14)
at process._tickCallback (node.js:415:13)
19:40:22.105 [pimatic] info: new device "EasyBox"...

But if i change the lcd-config-schema.coffee default and remove "address" from config.json pimatic startup without errors:

module.exports = {
title: "lcd plugin config options"
type: "object"
properties:
bus:
description: "i2c bus device"
type: "string"
default: "/dev/i2c-1"
address:
description: "address of the device"
type: "number"
default: 0x20
rows:
description: "number of rows (lines) of the LCD"
type: "number"
default: 2
cols:
description: "number of cols (characters in a line) of the LCD"
type: "number"
default: 16

but if i set a rule like this it will run and say "displaying xx on line 1" but nothing happend on line 1

"rules": [
{
"id": "aa",
"name": "aa",
"rule": "if $syssensor1.cpu changes then display "CPU: {$syssensor1.cpu}%" on lcd line 1",
"active": true,
"logging": true
}

i also see in my logs a error in the first install of pimatic-lcd:

19:17:29.044 [pimatic] info: loading plugin: "pimatic-sunrise" (0.8.0)
19:17:29.209 [pimatic-cron] info: the time is: Sat Jan 03 2015 19:17:29 GMT+0100 (CET)
19:17:29.534 [pimatic-sunrise] info: Your location is set to lat: 53.682185431, long: 9.749752655
Possibly unhandled TypeError: Failed to set address
at i2c.setAddress (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/i2c/lib/i2c.coffe
e:64:10)
at i2c.writeByte (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/i2c/lib/i2c.coffee
:81:10)
at i2c.writeByteAsync (eval at makeNodePromisifiedEval (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i
2c-lcd/node_modules/bluebird/js/main/promisify.js:201:12), :12:22)
at /usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/lib/lcd.js:68:26
at tryCatch1 (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/main/util.
js:45:21)
at Promise$_callHandler [as _callHandler](/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_m
odules/bluebird/js/main/promise.js:660:13)
at Promise$_settlePromiseFromHandler [as _settlePromiseFromHandler](/usr/local/pimatic-app/node_modules/pimatic-lcd/n
ode_modules/i2c-lcd/node_modules/bluebird/js/main/promise.js:675:18)
at Promise$_settlePromiseAt [as _settlePromiseAt](/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lc
d/node_modules/bluebird/js/main/promise.js:845:14)
at Async$_consumeFunctionBuffer as _consumeFunctionBuffer
at Async$consumeFunctionBuffer (/usr/local/pimatic-app/node_modules/pimatic-lcd/node_modules/i2c-lcd/node_modules/bluebird/js/main/async.js:40:14)
at process._tickCallback (node.js:415:13)
19:17:29.811 [pimatic-homeduino] info: Connected to homeduino device.
19:17:38.676 [pimatic] info: new device "EasyBox"...

It looks like something (address) is hardcode or the installation was wrong...