Generate OTA file

[alyssiarosewhite]

Hi,

I'm really sorry but I can't figure out how to do this.  I've added FOTA to my ZigBee project (using the light switch example) but I can't find anything on how to generate an *.ota file that I can use to do the update via ZigBee2MQTT.

Am I able to do this on the NRF52840? Is there any documentation on this? I feel like I've been looking for too long and have subject blindness.

Thank you

[Nagajans]

Hi alyssiarosewhite,
I've been experimenting with Zigbee2MQTT but haven’t had any success with OTA updates. Could you please share what changes you made to get OTA working on your Nordic board?

[Huong Nguyen]

What is your problem?

[Nagajans]

I’ve been experimenting with Zigbee2MQTT and the nRF52840 board to perform OTA updates, but I haven’t been successful so far. I created a custom external converter for the nRF52840, added it as a supported device, and generated the my_index.json file — however, the OTA update still doesn’t work. I’ve attached all the necessary details. I created 127F-0141-02000000-light_bulb.zigbee file but this file is not visible in Zigbee2Mqtt OTA firmware update page. please help me troubleshoot this issue.

External converter

import * as m from 'zigbee-herdsman-converters/lib/modernExtend';

console.log(">>> Loading external converter for Dimable_Light_v01");

export default {
zigbeeModel: ["Dimable_Light_v01"],
model: "Dimable_Light_v01",
vendor: "Nordic",
description: "Automatically generated definition",
extend: [m.deviceEndpoints({"endpoints":{"5":5,"10":10}}), m.light()],
meta: {"multiEndpoint":true},
};

my_index.json
[
{
"url": "/ota/127F-0141-02000000-light_bulb.zigbee",
"imageType": 321,
"manufactureCode": 4735,
"fileVersion": 16777216,
"force": true
}
]

configuration.yaml
version: 4
mqtt:
base_topic: zigbee2mqtt
server: mqtt://localhost:1883
serial:
port: COM18
adapter: zboss
baudrate: 115200
rtscts: false
external_converters:
- >-
C:/Users/nagarajan.m/Downloads/zigbee2mqtt-master/zigbee2mqtt-master/data/external_converters/Dimable_Light_v01.mjs
advanced:
log_level: info
channel: 16
network_key:
- 192
- 99
- 61
- 57
- 226
- 129
- 254
- 190
- 202
- 191
- 105
- 202
- 14
- 55
- 40
- 50
pan_id: 23150
ext_pan_id:
- 71
- 227
- 191
- 250
- 103
- 23
- 180
- 99
frontend:
enabled: true
port: 8080
homeassistant:
enabled: false
ota:
update_check_interval: 1440
disable_automatic_update_check: false
image_block_response_delay: 250
default_maximum_data_size: 50
ota_base_url: http://localhost:8081/
zigbee_ota_override_index_location: data/my_index.json
zigbee_ota: true
devices:
'0xf4ce366c68e5776c':
friendly_name: Nordic_Light_Bulb

 

[Huong Nguyen]

You should add this code into the external converter

    ota: {
        ota: true,
        isUpdateAvailable: async (device, logger, data) => {
            return ota.isUpdateAvailable(device, logger, data, 'your_ota_index.json');
        },
        updateDevice: async (device, logger, data, onProgress) => {
            logger.info(`Starting FOTA update for ${device.ieeeAddr}...`);
            return ota.updateToLatest(device, logger, data, onProgress, 'your_ota_index.json');
        },
    },

[Nagajans]

Thanks for the information. I can now see the device listed under the OTA tab, but when I try to trigger an update through MQTT Explorer, I get the following error:

update = {"data":{},"error":"Update of 'Nordic_Light_Bulb' failed (No image currently available)","status":"error"}

I’ve placed the file 127F-0141-02000000-light_bulb.zigbee in my MQTT local server directory. Do I need to use a .ota file instead, or is the .zigbee format acceptable?