Moddable Two board - GPIO closed? #49

rei-vilo · 2022-11-29T19:39:36Z

rei-vilo
Nov 29, 2022

I am testing the LED on GPIO2 of the Moddable Two board and set GPIO to 2 although it displays then 3.

Project 1: Blink

Works as expected.
The GPIO node shows the state 0 or 1.

Project 2: On/Off buttons

This is a separate project, no a flow on the same project.

Clicking on 0 or 1 doesn't change the LED.
The GPIO node shows Closed.

What am I doing wrong?

Listings

Listing 1: Blink

[
    {
        "id": "b0430bb22e8d2233",
        "type": "inject",
        "z": "fa3bf03c6582e230",
        "name": "",
        "props": [],
        "repeat": "2",
        "crontab": "",
        "once": true,
        "onceDelay": "1",
        "topic": "",
        "_mcu": {
            "mcu": true
        },
        "x": 130,
        "y": 100,
        "wires": [
            [
                "a3c28be7578a24fc",
                "ea51a1713c293c29"
            ]
        ]
    },
    {
        "id": "a3c28be7578a24fc",
        "type": "delay",
        "z": "fa3bf03c6582e230",
        "name": "",
        "pauseType": "delay",
        "timeout": "500",
        "timeoutUnits": "milliseconds",
        "rate": "1",
        "nbRateUnits": "1",
        "rateUnits": "second",
        "randomFirst": "1",
        "randomLast": "5",
        "randomUnits": "seconds",
        "drop": false,
        "allowrate": false,
        "outputs": 1,
        "_mcu": {
            "mcu": true
        },
        "x": 190,
        "y": 240,
        "wires": [
            [
                "26da7f94dc0f4b7e"
            ]
        ]
    },
    {
        "id": "65c9d70eff75522b",
        "type": "rpi-gpio out",
        "z": "fa3bf03c6582e230",
        "name": "",
        "pin": "2",
        "set": "",
        "level": "0",
        "freq": "",
        "out": "out",
        "bcm": true,
        "_mcu": {
            "mcu": true
        },
        "x": 530,
        "y": 180,
        "wires": []
    },
    {
        "id": "ea51a1713c293c29",
        "type": "change",
        "z": "fa3bf03c6582e230",
        "name": "1",
        "rules": [
            {
                "t": "set",
                "p": "payload",
                "pt": "msg",
                "to": "1",
                "tot": "num"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "_mcu": {
            "mcu": true
        },
        "x": 370,
        "y": 160,
        "wires": [
            [
                "65c9d70eff75522b",
                "9aad4231d9142b20"
            ]
        ]
    },
    {
        "id": "26da7f94dc0f4b7e",
        "type": "change",
        "z": "fa3bf03c6582e230",
        "name": "0",
        "rules": [
            {
                "t": "set",
                "p": "payload",
                "pt": "msg",
                "to": "0",
                "tot": "num"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "_mcu": {
            "mcu": true
        },
        "x": 370,
        "y": 260,
        "wires": [
            [
                "0ae1e6d23a6488ce",
                "65c9d70eff75522b"
            ]
        ]
    },
    {
        "id": "9aad4231d9142b20",
        "type": "debug",
        "z": "fa3bf03c6582e230",
        "name": "debug 1",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "_mcu": {
            "mcu": true
        },
        "x": 540,
        "y": 140,
        "wires": []
    },
    {
        "id": "0ae1e6d23a6488ce",
        "type": "debug",
        "z": "fa3bf03c6582e230",
        "name": "debug 2",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "_mcu": {
            "mcu": true
        },
        "x": 540,
        "y": 240,
        "wires": []
    }
]

Listing 2: On/Off buttons

[
    {
        "id": "af65a212cb5d9857",
        "type": "rpi-gpio out",
        "z": "cc61b7b4ecba6479",
        "name": "",
        "pin": "2",
        "set": true,
        "level": "1",
        "freq": "",
        "out": "out",
        "bcm": true,
        "_mcu": {
            "mcu": true
        },
        "x": 580,
        "y": 220,
        "wires": []
    },
    {
        "id": "2eae9d517eb042a0",
        "type": "inject",
        "z": "cc61b7b4ecba6479",
        "name": "",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "1",
        "payloadType": "num",
        "_mcu": {
            "mcu": true
        },
        "x": 190,
        "y": 120,
        "wires": [
            [
                "af65a212cb5d9857"
            ]
        ]
    },
    {
        "id": "754e7a6b30f2ac26",
        "type": "inject",
        "z": "cc61b7b4ecba6479",
        "name": "",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "0",
        "payloadType": "num",
        "_mcu": {
            "mcu": true
        },
        "x": 190,
        "y": 180,
        "wires": [
            [
                "af65a212cb5d9857"
            ]
        ]
    }
]

Answered by rei-vilo

Nov 30, 2022

After much investigation, I managed to get Project 2: On/Off buttons working.

The hint was that most of the errors I have reported so far seem to be random, the worst case of errors.

The trick was:

I deleted the /Users/USER/Projects/moddable/build/tmp/esp32/moddable_two/debug/ folder to get a clean environment.

This is actually the same fix I used for #46 (reply in thread).

It would be a good idea to include that step into the standard build procedure.

View full answer

phoddie · 2022-11-29T20:50:36Z

phoddie
Nov 29, 2022
Maintainer

Thank you for the very clear report.

When it doesn't work, do you still see the Debug node output traces?

I was able to run both flows on Moddable Two without a problem. To eliminate any possible interaction with the Node-RED Editor, I modified the flows to use repeating injects to toggle the LED. Maybe you could try that? Here's my modified flow for Listing 2:

[
    {
        "id": "af65a212cb5d9857",
        "type": "rpi-gpio out",
        "z": "cc61b7b4ecba6479",
        "name": "",
        "pin": "2",
        "set": true,
        "level": "1",
        "freq": "",
        "out": "out",
        "bcm": true,
        "x": 580,
        "y": 220,
        "wires": []
    },
    {
        "id": "2eae9d517eb042a0",
        "type": "inject",
        "z": "cc61b7b4ecba6479",
        "name": "",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "1",
        "crontab": "",
        "once": true,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "1",
        "payloadType": "num",
        "x": 190,
        "y": 120,
        "wires": [
            [
                "af65a212cb5d9857"
            ]
        ]
    },
    {
        "id": "754e7a6b30f2ac26",
        "type": "inject",
        "z": "cc61b7b4ecba6479",
        "name": "",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "1",
        "crontab": "",
        "once": true,
        "onceDelay": 0.6,
        "topic": "",
        "payload": "0",
        "payloadType": "num",
        "x": 190,
        "y": 180,
        "wires": [
            [
                "af65a212cb5d9857"
            ]
        ]
    }
]

I have no idea why the Editor shows the node as "PIN: 3". That's really strange.

3 replies

ralphwetzel Nov 29, 2022

I have no idea why the Editor shows the node as "PIN: 3". That's really strange.

GPIO 2 == @ PIN 3

phoddie Nov 29, 2022
Maintainer

Oh, I see. It is a Raspberry Pi thing. That makes sense. I like using the pre-existing Node, because it makes projects more portable and gives developers less to learn. But... details like this are kind of confusing too. Maybe in time we can evolve the editor experience to adapt better to the target device.

ralphwetzel Nov 29, 2022

Once I drafted a "generic" GPIO node dedicated to node-red-mcu - even with that nice looking RPi like interface. Maybe in time ... 😄

rei-vilo · 2022-11-30T09:04:32Z

rei-vilo
Nov 30, 2022
Author

After much investigation, I managed to get Project 2: On/Off buttons working.

The hint was that most of the errors I have reported so far seem to be random, the worst case of errors.

The trick was:

I deleted the /Users/USER/Projects/moddable/build/tmp/esp32/moddable_two/debug/ folder to get a clean environment.

This is actually the same fix I used for #46 (reply in thread).

It would be a good idea to include that step into the standard build procedure.

8 replies

rei-vilo Dec 1, 2022
Author

No problem, I am well aware of the highly segmented world of embedded development.

However, could a container with the tools for the official boards sold by Moddable be a solution?

I mean, with limited resources, each minute spent on configuring the environment is not dedicated to evaluate the Moddable SDK.

phoddie Dec 13, 2022
Maintainer

However, could a container with the tools for the official boards sold by Moddable be a solution?

A container could support a lot of boards, just as easily as the Moddable boards. We looked at providing a container a while back, it wasn't obvious what would work for most developers. We are now doing monthly releases that include binaries. Maybe we should revisit providing a container as part of that. The Moddable team doesn't have much experience with containers, so we probably aren't the right people to take the lead on it though. Is that something you might be able to help set-up? From there, we could update it to include as part of our monthly release.

FWIW – I recall that @meganetaaan had, at one point, experimented with providing a container for his (super-~~fun~~kawaii, award-winning) Stack-chan project. I'm not sure about the status of that now.

rei-vilo Dec 13, 2022
Author

About containers, I am mostly a user. There are two main benefits of containers: easy installation and separate environment.

The recommended xs-dev provide a good solution for installing the SDKs, albeit not in a separate environment.

phoddie Dec 14, 2022
Maintainer

Cool. I'm glad to hear that about xs-dev. I understand it isn't the same as a container but it does automate installs and updates. xs-dev might even be a good tool for someone to use to build a container.

rei-vilo Dec 14, 2022
Author

I have just performed a clean installation with xs-dev.

It is worth noting that xs-dev only manage the Moddable and the boards-related SDKs.

The Node-RED MCU plug-in and the settings.js file editing need to be performed manually.

rei-vilo · 2022-12-14T17:20:47Z

rei-vilo
Dec 14, 2022
Author

One more question related to GPIOs, this time PWM 18 in charge of backlight from Node-RED MCU.

Configuration the RPI-GPIO node with PWM 18 shows 12 not available.

Trying to access config.brightness = 75;" or backlight.write(80);` return errors as well.

The panes Configuration nodes and Context do not list this parameter or are empty.

How to manage backlight with Node-RED?

2 replies

phoddie Dec 14, 2022
Maintainer

I think there's a straightforward solution here, but won't be able to look into it for a bit. Since it is a different topic, could you move this question to a separate topic? That way it will be easier for others to discover the knowledge in the future. Thanks!

rei-vilo Dec 14, 2022
Author

Sure, moved to #56.

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Moddable Two board - GPIO closed? #49

rei-vilo Nov 29, 2022

Project 1: Blink

Project 2: On/Off buttons

Listings

Replies: 3 comments · 13 replies

phoddie Nov 29, 2022 Maintainer

ralphwetzel Nov 29, 2022

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