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Life & fun · alternatives · 2026

24 alternatives to I Made an ESP32 On-Call Beeper

I built a retro-style beeper (pager) for Sentry

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1BA

    Hi. I heard HN likes e-paper gadgets so I wanted to share a little side project I’ve been working on with @sqfmi. We’re building Beepberry - a portable e-paper computer for hackers, designed for chatting on Beeper. My day job is running Beeper [0], but I will always have a soft spot for building hardware. I wanted to create a ‘weekend’ device that would let me stay in touch with friends and family, without the distractions of a full smartphone. I imagined a tiny, hackable e-paper screen with a physical keyboard, powered by a Raspberry Pi, that I could use to chat around my home…and pretty…

    2023 · beepberry.sqfmi.com · its alternatives →

  2. 2

    Get the most popular messaging services, all in a single app. WhatsApp, Signal, Instagram, Telegram, and more.

    2021 · beeperhq.com · its alternatives →

  3. 3
    Beep! 2.0▲871

    Fastest tool to assign and share visual tasks with your team

    2023 · justbeepit.com · its alternatives →

  4. 4
    A pager▲104

    Hello 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 →

  5. 5

    Hey HN, I am building an open source platform to make on-call better and less stressful for engineers. We are building a tool that can silence alerts and help with debugging and root cause analysis. We also want to automate tedious parts of being on-call (running runbooks manually, answering questions on Slack, dealing with Pagerduty). Here is a quick video of how it works: https://youtu.be/m_K9Dq1kZDw I hated being on-call for a couple of reasons: * Alert volume: The number of alerts kept increasing over time. It was hard to maintain existing alerts. This would lead to a lot…

    2024 · github.com · its alternatives →

  6. 6

    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 →

  7. 7
    Beeper▲95

    Stock market and crypto currency bot for Slack and Discord

    2022 · its alternatives →

  8. 8

    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 →

  9. 9
    Beep!▲181

    Comment on any page, anywhere on the screen, tag anyone

    2023 · chromewebstore.google.com · its alternatives →

  10. 10

    hi all, joey parsons here, founder & ceo of beeps (https://beeps.dev). we’ve been frustrated with the state of on-call and are on a mission to fix it, starting with solving on-call problems for nextjs developers. we spent a bit of time with engineers in this space and identified two problems we’ve built solutions for: getting straight to the facts: beeps helps you get to context quickly when problems arise. we automatically listen for alerts from your observability systems like sentry, axiom, datadog and others and when things go wrong, we’ll track down all the context you usually…

    2024 · beeps.dev · its alternatives →

  11. 11
    Beep Boop▲142

    Ridiculously simple hosting platform for Slack bots.

    2016 · beepboophq.com · its alternatives →

  12. 12

    Hi all, my friend and I have built an AI-powered (whisper) editor for youtubers, podcasters, and video editors, that should cut down manual editing time by a lot. It's 'a bit' more than just a whisper wrapper, because you can configure a lot: - what kind of profanities to filter - add your own words (i.e. 'covid') to prevent demonetization on platforms like youtube - adjust the transcript in the editor like in google docs - readjust the position of each word - use 1000Hz beep, silence, or your own sound and more. You can export your work as audio, video, or as an .xml project for popular…

    2025 · beepthatout.com · its alternatives →

  13. 13

    Hi HN! I built AI Baby Monitor – a tiny stack (Redis + vLLM + Streamlit) that watches a video stream and a YAML list of safety rules. If the model spots a rule being broken it plays beep sound, so you can quickly glance over and check on your baby. Why? When we bought a crib for our daughter, the first thing she tried was climbing over the rail :/ I got a bit paranoid about constantly watching her over, so I thought of a helper that can *actively* watch the baby, while parents could stay *semi-actively* alert. It’s meant to be an additional set of eyes, and *not* a replacement for the…

    2025 · github.com · its alternatives →

  14. 14
    Beep▲73

    Bringing Music To Every Room

    2014 · its alternatives →

  15. 15

    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 →

  16. 16

    This toy retro synth installs and runs on esp32-s3 or p4 as an ELF file under BreezyBox firmware. It uses my work-in-progress immediate mode TUI library in C. Web-based version via emscripten: https://mini000.itch.io/beeper Source code: https://github.com/valdanylchuk/beeper Demo video running on Tanmatsu (esp32-p4): https://www.youtube.com/watch?v=uCH9XYZ7QB0 The main challenge I was going for was actually to find a nice minimal set of controls for a subtractive synth. Usually there are 40-50 of them in "simple" synths; I ended up with 16.…

    Jul 2026 · mini000.itch.io · its alternatives →

  17. 17
  18. 18

    A cross-platform (Windows, MacOS, Linux) implementation of beep - louisabraham/beep

    2018 · github.com · its alternatives →

  19. 19

    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 →

  20. 20IC

    Hi HN! I've been tinkering on a programmatically controlled typewriter. I've got a working prototype and it's been a lot of fun to play with. Of course I connected it to ChatGPT so I can chat with it, and I also have it acting as a clock, but it doesn't just type out the time. It writes a poem about the time. I'm posting this to gauge interest in purchasing one. It's all handmade, so I can't scale it up, but if enough people are into it, I might make a small batch. Or maybe sell it as a kit for the DIY crowd. Anyway, just wanted to put it out there and see what you all think. Thanks for…

    2024 · notes.bayesup.date · its alternatives →

  21. 21

    Emails are outdated. Notify users where they are.

    2025 · its alternatives →

  22. 22

    Hey yall, I built this for my makerspace. We wanted to let each other borrow things, but also didn't want to put up a big shiny sign saying "hey everyone, my garage has a super fancy oscilloscope just sitting there" and also didn't want to necessarily always need to say yes to everything. However, when I show it to people, they've been suggesting using it for other things like board games, or wedding equipment, etc. I'm still trying to find PMF, so please let me know what you think! For the stack, it's all Elixir + LiveView which is really nice, and then Fly.io, Fly's MPG, Tigris Data,…

    Aug 2026 · toolpool.garden · its alternatives →

  23. 23

    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 →

  24. 24

    Blazing fast IP & DNS tools for developers

    Nov 2025 · beeping.app · its alternatives →

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