Life & fun · alternatives · 2026
24 alternatives to ESP32 Walkie-Talkie Using UDP Broadcast and ESP-Now
This project enables two-way radio communication using ESP32 microcontrollers via UDP broadcast and ESP-Now wireless protocols. It is designed for makers and hobbyists interested in building wireless communication… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ESP32 Walkie-Talkie Using UDP Broadcast and ESP-Now launched in 2021; newer entries below may have overtaken it.
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As part of a little research and also some fun I decided to try my hand at seeing how small of an ESP32 board I can make with functioning WiFi.
Nov 2025 · github.com · its alternatives →
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This project is an RF Signal Scanner built using an ESP32, AD8317 RF detector, and various other components. It's designed to detect and measure RF signals in the environment and display the signal strength on an OLED display. It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices.
2024 · github.com · its alternatives →
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ESP32 RC Cars▲335This is a projected I started that blends both the fun of playing a split screen multiplayer driving game and controlling real rc cars. The cars can also be controlled via bluetooth gamepads and is meant to be easily hackable.
2025 · github.com · its alternatives →
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Hi HN! I would like to present my project called TOMMY, which turns ESP32 devices into motion sensors that work through walls and obstacles using Wi-Fi sensing. TOMMY started as a project for my own use. I was frustrated with motion sensors that didn't detect stationary presence and left dead zones everywhere. Presence sensors existed but were expensive and needed one per room. I explored echo localization first, but microphones listening 24/7 felt too creepy. Then I discovered Wi-Fi sensing - a huge research topic but nothing production-ready yet. It ticked all the boxes: could…
2025 · tommysense.com · its alternatives →
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📡 An AX.25 packet radio chat protocol with support for digital signatures and binary compression. Like IRC over radio waves. - brannondorsey/chattervox
2018 · github.com · its alternatives →
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Hi HN! Last year the project I launched here got a lot of good feedback on creating speech to speech AI on the ESP32. Recently I revamped the whole stack, iterated on that feedback and made our project fully open-source—all of the client, hardware, firmware code. This Github repo turns an ESP32-S3 into a realtime AI speech companion using the OpenAI Realtime API, Arduino WebSockets, Deno Edge Functions, and a full-stack web interface. You can talk to your own custom AI character, and it responds instantly. I couldn't find a resource that helped set up a reliable, secure websocket (WSS) AI…
2025 · github.com · its alternatives →
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hi! video[0] The idea is you could carry around this hardware and ask it any questions about the conference. Who is speaking, what are they speaking about etc... it connects via WebRTC to a LLM and you get a bunch of info. This is a workshop/demo project I did for a conference. When I was talking to the organizers I mentioned that I enjoy doing hardware + WebRTC projects. They thought that was cool and so we ran with it. I have been doing these ESP32 + voice ai projects for a bit now. Started with an embedded sdk for livekit[1] that jul 2024 and been noodling with it since then. This…
2025 · github.com · its alternatives →
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Hi everyone, I'm the author of ESPectre. This is an open-source (GPLv3) project that uses Wi-Fi signal analysis to detect motion using CSI data, and it has already garnered almost 2,000 stars in two weeks. Key technical details: - The system does NOT use Machine Learning, it relies purely on Math. — Runs in real-time on a super affordable chip like the ESP32. - It integrates seamlessly with Home Assistant via MQTT.
Nov 2025 · github.com · its alternatives →
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Hi HN! This is an SDK for ESP32s (microcontrollers) that runs against OpenAI's new WebRTC service [0] My hope is that people can easily add AI to lots of 'real' devices. Wearable devices, speakers around the house, toys etc... You don't have to write any code, just buy a device and set some env variables. If you have any feedback/questions I would love to hear! I hope this kicks off a generation of new interesting devices. If you aren't familiar with WebRTC it can do some magical things. Check out WebRTC for the Curious[1] and would love to talk about all the cool things that does also.…
2024 · github.com · its alternatives →
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Open-source ESP32 emulator. Run real firmware locally or in your browser — no hardware, no cloud, no subscription. - mikroverk/esp32sim
6d ago · github.com · its alternatives →
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Hello all - Inspired by many who build/assemble for their daughters/sons, I took cue and assembled a two-way communication between my son and his friends. Nothing spectacular. Just basic stuff to talk. He is eleven and doesn't have a phone. I wanted him to talk to his friends without an account, a feed, or an algorithm in between, so I built five ESP32-S3 touchscreen units, one per kid. Tap a friend's name, their unit rings. Tap Everyone, they all ring. Each unit dials outbound to a relay I run, so no house opens a port. Audio is uncompressed 16 kHz PCM in 20 ms frames, AES-256-GCM…
Aug 2026 · sundaradnus.ca · its alternatives →
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Full network stack over sound -- lwIP driver for libquiet - quiet/quiet-lwip
2016 · github.com · its alternatives →
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WalkieTalkie▲63Video and audio based asynchronous meetings for remote teams
2021 · its alternatives →
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Olaf - Acoustic fingerprinting on the ESP32 and in the Browser
2020 · 0110.be · its alternatives →
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IoT Suite for a Smart Home consisting of ESP32-WROOM, Arduino Nano/Uno/Mega, and Raspberry Pi - TheGeekExplorer/IoT-Home
2022 · github.com · its alternatives →
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This is a project I made to learn more about crypto. I've also written a [post](https://vaktibabat.github.io/posts/ecurvechat/) that explains all the crypto concepts and algorithms used in the project, and how I implemented them. I'd be very glad for any feedback about both the code and the post :)
2024 · github.com · its alternatives →
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Contribute to Park07/amradio development by creating an account on GitHub.
Feb 2026 · github.com · its alternatives →
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A pager▲104Hello HN, I basically don't use notifications for anything. The noise is too much. Slack is too loud. Email is too slow. But sometimes you do need a note in your face. I found myself missing 1990s pagers. I wanted a digital equivalent - something that does one thing: beep until I ack it. So I built UDP-7777. Concept: - 0% Cloud: It listens on UDP Port 7777. No accounts, no central servers. You don't need Tailscale/ZeroTier/WG/etc, it's just easy for device sets. - CAPCODES: It maps your IP address (LAN or Tailscale) to a retro 10-digit "CAPCODE" that looks like a phone number…
Dec 2025 · udp7777.com · its alternatives →
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Local voice chatbot for engaging conversations, powered by Ollama, Hugging Face Transformers, and Coqui TTS Toolkit - mezbaul-h/june
2024 · github.com · its alternatives →
- 23WT
Hey team, I'm Arjun! Builder at flowy.live. So - it's quite simple. It's a walkie-talkie with a way to play back the last 24 hours. A new medium of communication for active teams. We have released for Mac and Windows. Any feedback or thoughts would mean the world to us! Open to a feedback session? https://calendly.com/arjun-flowy/onboarding Appreciate all of you, Arjun Patel [email protected]
2023 · flowy.live · its alternatives →
- 24SW
2020 · squawk.to · its alternatives →
Also compare
- F32 – An Extremely Small ESP32 Board alternatives
- RF Hunter – Find hidden cameras and other devices alternatives
- ESP32 RC Cars alternatives
- Tommy – Turn ESP32 devices into through-wall motion sensors alternatives
- A new protocol for packet radio including ECDSA and compression alternatives
- I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →