# Register a sensor with a custom firmware
**URL:** https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372
**Category:** FAQ
**Created:** [April 8, 2026, 2:36pm UTC](https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372 "2026-04-08T14:36:04Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@matteovisotto](https://forum.sensor.community/u/matteovisotto)
#### Post date: [April 8, 2026, 2:36pm UTC](https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372/1 "2026-04-08T14:36:04Z")
Hi everyone,
I built my custom sensor (AHT20 BMP280 SPS30 BH1750 and ICS43434) with my own custom firmware. I would like to push data to api.sensor.community but I do not now how to register the sensor. How can I register it?
Thanks
---
### Author:  [@Preeti](https://forum.sensor.community/u/Preeti)
#### Post date: [April 9, 2026, 6:38am UTC](https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372/2 "2026-04-09T06:38:06Z")
> [@matteovisotto](#):
>
> Hi everyone,
> I built my custom sensor (AHT20 BMP280 SPS30 BH1750 and ICS43434) with my own custom firmware. I would like to push data to api.sensor.community but I do not now how to register the sensor. How can I register it?
1. Sign up on Sensor.Community
2. Go to dashboard → “Add new sensor”
3. Select your sensor types (SPS30, BMP280, etc.)
4. You’ll get a **Sensor ID**
Then in your firmware:
- Use API: `https://api.sensor.community/v1/push-sensor-data/`
- Add headers:
- Send data in their JSON format
That’s it, once data is sent, it will appear on the map.
---
### Author:  [@matteovisotto](https://forum.sensor.community/u/matteovisotto)
#### Post date: [April 9, 2026, 6:54am UTC](https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372/3 "2026-04-09T06:54:15Z")
Thanks for your reply. The problem is to find the chipID to register the sensor.
After a long research I figured out that it is generated from the MAC address and now it should work.
I’ll try to send data to the APIs.
Thanks
---
### Author:  [@matteovisotto](https://forum.sensor.community/u/matteovisotto)
#### Post date: [April 9, 2026, 9:39am UTC](https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372/4 "2026-04-09T09:39:52Z")
An other rapid question. How can I add a sensor type later? I would like to add DNMS to esp32-50787D16ACB8 but from UI settings I cannot.
Thanks,
Matteo
---
### Author:  [@Zrzyck](https://forum.sensor.community/u/Zrzyck)
#### Post date: [April 11, 2026, 1:55pm UTC](https://forum.sensor.community/t/register-a-sensor-with-a-custom-firmware/8372/5 "2026-04-11T13:55:47Z")
yo, does it work for you? Here’s my esphome script which sends data to sonsor.community, madavi and opensensemap. Maybe you will find this helpful.
```auto
## HPM/PMS/SDS011/SPS30 => Pin 1
## BME280 => Pin 11
## BMP180/BMP280 => Pin 3
## DHT22/HTU21D/SHT3x => Pin 7
## GPS(Neo-6M) => Pin 9
## DS18B20 => Pin 13
## DNMS => Pin 15
```
```auto
script:
- id: send_pm_data
then:
- http_request.post:
url: https://api.sensor.community/v1/push-sensor-data/
request_headers:
X-Pin: "1"
X-Sensor: "esp8266-6xxxxx1"
Content-Type: "application/json"
body: !lambda |-
return R"({
"software_version": "esphome-custom",
"sensordatavalues": [
{"value_type": "P1", "value": ")" + id(latest_PM10) + R"("},
{"value_type": "P2", "value": ")" + id(latest_PM25) + R"("}
]
})";
- http_request.post:
url: https://api-rrd.madavi.de/data.php
request_headers:
X-Pin: "1"
X-Sensor: "esp8266-6xxxxx1"
Content-Type: "application/json"
body: !lambda |-
return R"({
"software_version": "esphome-custom",
"sensordatavalues": [
{"value_type": "SDS_P1", "value": ")" + id(latest_PM10) + R"("},
{"value_type": "SDS_P2", "value": ")" + id(latest_PM25) + R"("}
]
})";
- http_request.post:
url: https://api.opensensemap.org/boxes/6830xxxxxxxxxx0007e40e7d/data
request_headers:
Content-Type: "application/json; charset=utf-8"
body: !lambda |-
return R"([
{"sensor": "6830xxxxxxxxxx0007e40e80", "value": ")" + id(latest_PM10) + R"("},
{"sensor": "6830xxxxxxxxxx0007e40e81", "value": ")" + id(latest_PM25) + R"("}
])";
- id: send_env_data
then:
- http_request.post:
url: https://api.sensor.community/v1/push-sensor-data/
request_headers:
X-Pin: "7"
X-Sensor: "esp8266-6xxxxx1"
Content-Type: "application/json"
body: !lambda |-
return R"({
"software_version": "esphome-custom",
"sensordatavalues": [
{"value_type": "temperature", "value": ")" + id(latest_temperature) + R"("},
{"value_type": "humidity", "value": ")" + id(latest_humidity) + R"("}
]
})";
- http_request.post:
url: https://api-rrd.madavi.de/data.php
request_headers:
X-Pin: "7"
X-Sensor: "esp8266-6xxxxx1"
Content-Type: "application/json"
body: !lambda |-
return R"({
"software_version": "esphome-custom",
"sensordatavalues": [
{"value_type": "SHT3X_temperature", "value": ")" + id(latest_temperature) + R"("},
{"value_type": "SHT3X_humidity", "value": ")" + id(latest_humidity) + R"("}
]
})";
- http_request.post:
url: https://api.opensensemap.org/boxes/6830xxxxxxxxx007e40e7d/data
request_headers:
Content-Type: "application/json; charset=utf-8"
body: !lambda |-
return R"([
{"sensor": "6830xxxxxxxxx007e40e7e", "value": ")" + id(latest_temperature) + R"("},
{"sensor": "6830xxxxxxxxx007e40e7f", "value": ")" + id(latest_humidity) + R"("}
])";
```