u/OneDot6374

Built a headless MQTT + Node-RED gateway on a Raspberry Pi Zero 2 W

Been running a lightweight edge IoT gateway on a Pi Zero 2 W — completely headless, no monitor ever attached.

Stack:

Mosquitto MQTT broker (with proper username/password auth, no more allow\_anonymous)

Node-RED + Dashboard 2.0 for flows and a live web UI

Avahi/mDNS + static IP for reliable headless access

A custom SSH welcome banner showing live RAM/CPU temp/uptime because why not

Publishing sensor data to a Node-RED gauge is as simple as one mosquitto\_pub command from anywhere on the network. Whole setup fits comfortably on a Zero 2 W with room to spare.

Full write-up + all commands are in the README: ,

https://github.com/kritishmohapatra/pi-iot-gateway

Happy to answer questions if anyone's setting up something similar.

Built a headless MQTT + Node-RED gateway on a Raspberry Pi Zero 2 W

Been running a lightweight edge IoT gateway on a Pi Zero 2 W — completely headless, no monitor ever attached.

Stack:

Mosquitto MQTT broker (with proper username/password auth, no more allow\_anonymous)

Node-RED + Dashboard 2.0 for flows and a live web UI

Avahi/mDNS + static IP for reliable headless access

A custom SSH welcome banner showing live RAM/CPU temp/uptime because why not

Publishing sensor data to a Node-RED gauge is as simple as one mosquitto\_pub command from anywhere on the network. Whole setup fits comfortably on a Zero 2 W with room to spare.

Full write-up + all commands are in the README: ,

https://github.com/kritishmohapatra/pi-iot-gateway

Happy to answer questions if anyone's setting up something similar.

Built a headless MQTT + Node-RED gateway on a Raspberry Pi Zero 2 W

Been running a lightweight edge IoT gateway on a Pi Zero 2 W — completely headless, no monitor ever attached.

Stack:

Mosquitto MQTT broker (with proper username/password auth, no more allow_anonymous)

Node-RED + Dashboard 2.0 for flows and a live web UI

Avahi/mDNS + static IP for reliable headless access

A custom SSH welcome banner showing live RAM/CPU temp/uptime because why not

Publishing sensor data to a Node-RED gauge is as simple as one mosquitto_pub command from anywhere on the network. Whole setup fits comfortably on a Zero 2 W with room to spare.

Full write-up + all commands are in the README: ,

https://github.com/kritishmohapatra/pi-iot-gateway

Happy to answer questions if anyone's setting up something similar.

Hey everyone

Just built ShrikeClock a fully custom NTP-synced digital clock running on #MicroPython, powered by the @Vicharak_In Shrike-Fi !

Live time + date over WiFi Custom multiplexed 7-segment driver from scratch Open source, code on GitHub 👇

https://github.com/kritishmohapatra/ShrikeClock

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

Hey everyone I am 3rd year electrical undergraduate student from India

I completed 100 days 100 iot projects challenge

Now I want to explore about raspberry Pi

But I don't have such money to buy one

If anyone can help I will be greatful 🙏

Hey everyone,

I've been building one MicroPython IoT project a day for 100 days straight. Repo: github.com/kritishmohapatra/100_Days_100_IoT_Projects

Covered sensors, BLE, ESP-NOW, RFID, cloud platforms, NeoPixel/GC9A01 displays, a robot car, and more recently AWS + MQTT + Node-RED projects. Got featured in Adafruit's newsletter, Raspberry Pi Blog, Hackster.io, PyCoder's Weekly, and How-To Geek along the way.

Next up, I want to move into projects needing a proper SBC (Raspberry Pi 4 8GB) — local ML, edge dashboards, stuff a microcontroller can't handle.

If you enjoy the project, I've got a small support page, no pressure:

👉 https://buymeacoffee.com/kritish

👉 https://github.com/sponsors/kritishmohapatra

Happy to answer questions about any of the projects. Thanks for reading!

Hey everyone,

I've been building one MicroPython IoT project a day for 100 days straight. Repo: github.com/kritishmohapatra/100_Days_100_IoT_Projects

Covered sensors, BLE, ESP-NOW, RFID, cloud platforms, NeoPixel/GC9A01 displays, a robot car, and more recently AWS + MQTT + Node-RED projects. Got featured in Adafruit's newsletter, Raspberry Pi Blog, Hackster.io, PyCoder's Weekly, and How-To Geek along the way.

Next up, I want to move into projects needing a proper SBC (Raspberry Pi 4 8GB) — local ML, edge dashboards, stuff a microcontroller can't handle.

If you enjoy the project, I've got a small support page, no pressure:

👉 https://buymeacoffee.com/kritish

👉 https://github.com/sponsors/kritishmohapatra

Happy to answer questions about any of the projects. Thanks for reading!

Hey everyone,

I've been building one MicroPython IoT project a day for 100 days straight. Repo: github.com/kritishmohapatra/100_Days_100_IoT_Projects

Covered sensors, BLE, ESP-NOW, RFID, cloud platforms, NeoPixel/GC9A01 displays, a robot car, and more recently AWS + MQTT + Node-RED projects. Got featured in Adafruit's newsletter, Raspberry Pi Blog, Hackster.io, PyCoder's Weekly, and How-To Geek along the way.

Next up, I want to move into projects needing a proper SBC (Raspberry Pi 4 8GB) — local ML, edge dashboards, stuff a microcontroller can't handle.

If you enjoy the project, I've got a small support page, no pressure:

👉 https://buymeacoffee.com/kritish

👉 https://github.com/sponsors/kritishmohapatra

Happy to answer questions about any of the projects. Thanks for reading!

Hey everyone,

I've been building one MicroPython IoT project a day for 100 days straight. Repo: github.com/kritishmohapatra/100_Days_100_IoT_Projects

Covered sensors, BLE, ESP-NOW, RFID, cloud platforms, NeoPixel/GC9A01 displays, a robot car, and more recently AWS + MQTT + Node-RED projects. Got featured in Adafruit's newsletter, Raspberry Pi Blog, Hackster.io, PyCoder's Weekly, and How-To Geek along the way.

Next up, I want to move into projects needing a proper SBC (Raspberry Pi 4 8GB) — local ML, edge dashboards, stuff a microcontroller can't handle.

If you enjoy the project, I've got a small support page, no pressure:

👉 https://buymeacoffee.com/kritish

👉 https://github.com/sponsors/kritishmohapatra

Happy to answer questions about any of the projects. Thanks for reading!

Hey everyone I am Kritish 3rd year electrical undergraduate student from India

I completed 100 days 100 iot projects challenge

Now I want to explore about raspberry Pi

But I don't have such money to buy one

If anyone can help I will be greatful 🙏

Hello everyone

I am Kritish built 100 days 100 iot project with Micropython

It crosses 800+ stars

I am from india and belong to a middle class family

In this project I collect hardware from some of my friends

Next I want to buy a raspberry pi

If you want help me you can sponsor me through github, can buy me a coffee or can dm me directly

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

https://buymeacoffee.com/kritish

Hello everyone

I am Kritish built 100 days 100 iot project with Micropython

It crosses 800+ stars

I am from india and belong to a middle class family

In this project I collect hardware from some of my friends

Next I want to buy a raspberry pi

If you want help me you can sponsor me through github, can buy me a coffee or can dm me directly

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

https://buymeacoffee.com/kritish

Hello everyone

I am Kritish built 100 days 100 iot project with Micropython

It crosses 800+ stars

I am from india and belong to a middle class family

In this project I collect hardware from some of my friends

Next I want to buy a raspberry pi

If you want help me you can sponsor me through github, can buy me a coffee or can dm me directly

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

https://buymeacoffee.com/kritish

Hello everyone I am 3rd year undergraduate student completed 100 days 100 iot project with Micropython

Also published two Micropython Libraries and one Arduino Libraries

Also build picodesk

As a student I have no such money to buy a raspberry pi

Can anyone send a raspberry pi for free

Here is my works

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

Hello everyone I am 3rd year undergraduate student completed 100 days 100 iot project with Micropython

Also published two Micropython Libraries and one Arduino Libraries

Also build picodesk

As a student I have no such money to buy a raspberry pi

Can anyone send a raspberry pi for free

Here is my works

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

Hello everyone I am 3rd year undergraduate student completed 100 days 100 iot project with Micropython

Also published two Micropython Libraries and one Arduino Libraries

Also build picodesk

As a student I have no such money to buy a raspberry pi

Can anyone send a raspberry pi for free

Here is my works

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

Hello everyone I am 3rd year undergraduate student completed 100 days 100 iot project with Micropython

Also published two Micropython Libraries and one Arduino Libraries

Also build picodesk

As a student I have no such money to buy a raspberry pi

Can anyone send a raspberry pi for free

Here is my works

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects

Hello everyone I am 3rd year undergraduate student completed 100 days 100 iot project with Micropython

Also published two Micropython Libraries and one Arduino Libraries

Also build picodesk

As a student I have no such money to buy a raspberry pi

Can anyone send a raspberry pi for free

Here is my works

https://github.com/kritishmohapatra/100\_Days\_100\_IoT\_Projects