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33 events found.

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  • December 2025

  • Wed 17
    Pi Pico Development board with red and black wires running to a USB port, attached to the Pico with twist tie wire
    December 17 @ 1:00 pm - 3:00 pm 🔄 Solder & Code: Pico Power Cycler

    🔄 Solder & Code: Pico Power Cycler

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build a gadget that turns power on and off for a USB-powered device. Useful for rebooting solar-powered radios, making decorations blink, etc. No experience with soldering […]

  • Wed 17
    Book cover for 'The Achilles Trap: Saddam Hussein, the United States and the Middle East, 1979-2003' by Steve Coll, with a photo of two people standing near barbed with a huge plume of smoke
    December 17 @ 7:00 pm - 8:30 pm 👁️ Intelligence History Reading Group: ‘Agents of Subversion’ by

    👁️ Intelligence History Reading Group: ‘The Achilles Trap’ by Steve Coll

    Iffy Books 404 S. 20th St., Philadelphia, United States

    This month we're readingThe Achilles Trap Saddam Hussein, the United States and the Middle East, 1979-2003 by Steve Coll 🎧 Get the audiobook on Libro.fm The Achilles Trap masterfully untangles […]

  • Thu 18
    Pi Pico Development board with red and black wires running to a USB port, attached to the Pico with twist tie wire
    December 18 @ 1:00 pm - 3:00 pm 🔄 Solder & Code: Pico Power Cycler

    🔄 Solder & Code: Pico Power Cycler

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build a gadget that turns power on and off for a USB-powered device. Useful for rebooting solar-powered radios, making decorations blink, etc. No experience with soldering […]

  • Fri 19
    Animated GIF of a small circuit board with two blinking LED lights, two transistors, two capacitors, and four resistors
    December 19 @ 1:00 pm - 2:00 pm ⚡️ Beginner Soldering: Flashing LED Circuit

    ⚡️ Beginner Soldering: Flashing LED Circuit

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll learn the basics of soldering by building a tiny oscillator circuit with two transistors and two LED lights. No previous experience needed! Register:  

  • Sat 20
    A photo of an audio cassette tape, made of black plastic with a red label. The brand is BASF, and the text says "ferro super LH 90"
    December 20 @ 10:30 am - 12:00 pm 🎵 Cassette Mixtape Session

    🎵 Cassette Mixtape Session

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Bring a playlist on your phone/computer and we’ll help you record it to an audio cassette tape. We have plenty of tapes to share! Register:  

  • Sun 21
    A photo of an audio cassette tape, made of black plastic with a red label. The brand is BASF, and the text says "ferro super LH 90"
    December 21 @ 10:30 am - 12:00 pm 🎵 Cassette Mixtape Session

    🎵 Cassette Mixtape Session

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Bring a playlist on your phone/computer and we’ll help you record it to an audio cassette tape. We have plenty of tapes to share! Register:

  • Thu 25
    Super close macro photo of a snowflake. CC-BY Alexey Kljatov https://www.flickr.com/photos/chaoticmind75/46796797182/
    December 25 @ 8:00 am - 5:00 pm

    ❄️ Closed December 25th

    Iffy Books 404 S. 20th St., Philadelphia, United States

    We'll be closed on December 25th. Sorry for the inconvenience! Photo CC-BY Alexey Kljatov

  • Sat 27
    Flyer with a pink toy keyboard in the background and the following text: Toy Quieting Workshop December 27 & 28 10:30 AM – 12:30 PM 404 S. 20th St., PHL
    December 27 @ 10:30 am - 12:30 pm 🧸 Toy Quieting Workshop

    🧸 Toy Quieting Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Is there a toy in your house that’s so loud it’s driving you up a wall? Are you just curious about electronics and sound? Join us for a hands-on workshop […]

  • Sun 28
    Flyer with a pink toy keyboard in the background and the following text: Toy Quieting Workshop December 27 & 28 10:30 AM – 12:30 PM 404 S. 20th St., PHL
    December 28 @ 10:30 am - 12:30 pm 🧸 Toy Quieting Workshop

    🧸 Toy Quieting Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Is there a toy in your house that’s so loud it’s driving you up a wall? Are you just curious about electronics and sound? Join us for a hands-on workshop […]

  • Tue 30
    Package label with a circuit diagram showing the connections between a Pi Pico development board, a DFplayer MP3 player module, and a speaker. The text reads: Breadboard MP3 Player Kit • Pi Pico board with USB-C port  & pre-soldered header pins • DFplayer MP3 Player module • 3W speaker • 830 tie point breadboard • 2-prong screw terminal • 4 push buttons • single-core wire (20") • mini wire cutter/stripper tool • M2 screw Instructions & MicroPython code at iffybooks.net/breadboard-mp3-player
    December 30 @ 12:00 pm - 1:30 pm 🎶 Breadboard MP3 Player Workshop

    🎶 Breadboard MP3 Player Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Stay tuned for details! Instructions & example code Here's what's included in the kit: Pi Pico board with USB-C port & pre-soldered header pins DFplayer MP3 Player module 3W speaker […]

  • Wed 31
    The Meshtastic logo, with the word "Meshtastic" in black
    December 31 @ 1:00 pm - 2:30 pm 📡 Meshtastic 101

    📡 Meshtastic 101

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for an introduction to Meshtastic, an application that lets you send private text messages over the air using pocket-sized LoRa radio transceivers. We’ll show you how to flash the […]

  • January 2026

  • Thu 1
    1920s(?) era greeting card with an illustration of an old man holding a scythe exiting on the left while a baby stands with its right arm up on the right. Here's the text: GOODBYE OLD YEAR! Good-bye Old Faults, Old Complaints, Old Grievances. - Good-bye Grouches, good-bye Bad Habits, good-bye Pessimism, good-bye Hard-times, Welcome a Fresh-start. HAPPY NEW YEAR TO YOU
    January 1, 2026

    🕰️ Closed January 1st

    Iffy Books 404 S. 20th St., Philadelphia, United States

    We'll be closed on New Year's Day. Sorry for the inconvenience!

  • Fri 2
    The words "Philly 2600" in an old-school digital font
    January 2, 2026 @ 6:00 pm - 8:00 pm 💻 Philly 2600 Meetup

    💻 Philly 2600 Meetup

    Iffy Books 404 S. 20th St., Philadelphia, United States

    > The Philly 2600 meeting is a monthly gathering of local hackers, phreaks, nerds, geeks, activists, tinkerers, developers, infosec professionals, and other interesting people.

  • Sun 4
    Pi Pico Development board with red and black wires running to a USB port, attached to the Pico with twist tie wire
    January 4, 2026 @ 10:30 am - 12:30 pm 🔄 Solder & Code: Pico Power Cycler

    🔄 Solder & Code: Pico Power Cycler

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build a gadget that turns power on and off for a USB-powered device. Useful for rebooting solar-powered radios, making decorations blink, etc. No experience with soldering […]

  • Sun 4
    '80s style pink glowing text reading "Homebrew Website Club" with a purple triangle and rainbow and grid receding into the background
    January 4, 2026 @ 6:00 pm - 8:00 pm 🏠 IndieWeb Homebrew Website Club

    🏠 IndieWeb Homebrew Website Club

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Homebrew Website Club is a growing world-wide network of meetups for everyone who wants to take back their web experience from social media silos, and own their online identities & […]

  • Tue 6
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    January 6, 2026 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Wed 7
    The symbol of the permacomputing movement, a pixel art flower 7 pixels wide and 9 pixels tall, in white on a black background.
    January 7, 2026 @ 6:30 pm - 8:00 pm 💾☀️ Permacomputing + Solarpunk Meetup

    💾☀️ Permacomputing + Solarpunk Meetup

    Iffy Books 404 S. 20th St., Philadelphia, United States

    The Permacomputing + Solarpunk meetup is the first Wednesday every other month at Iffy Books! You can join us in person (404 S. 20th St., PHL) or remotely via Jitsi Meet. […]

  • Wed 7
    Flyer with an icon of a laptop and the following text in pink outlined with green: FAFIO meetup fuck around and figure it out!
    January 7, 2026 @ 6:30 pm - 8:30 pm 🤔 FAFIO Meetup

    🤔 FAFIO Meetup

    Iffy Books 404 S. 20th St., Philadelphia, United States

    FAFIO is a new meetup for folks who want to learn new tech skills but aren't sure where to start. Let's fuck around and figure it out! Feel free to […]

  • Thu 8
    Flyer with an illustration of two people trapped inside a gear, with the following text: Neo-Luddite Reading Group / Iffy Books
    January 8, 2026 @ 6:30 pm - 8:30 pm ⚙️ Neo-Luddite Reading Group

    ⚙️ Neo-Luddite Reading Group

    Iffy Books 404 S. 20th St., Philadelphia, United States

    ➡️ Virtual Meetup Link Discord: Email neoluddite@victorgom.es for an invite! Full schedule: victorgom.es/neoluddite If you're joining for the first time, I'd suggest you read this before anything else for brief […]

  • Fri 9
    Photo of a black 3.5-inch floppy disk
    January 9, 2026 @ 6:00 pm - 8:00 pm

    🛠️ Digital Privacy & Autonomy Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Stay tuned for details!

  • Sat 10
    A drawing of two smiling turtles facing each other, with a wi-fi symbol over their heads. One is wearing a cowboy hat and the other is wearing a little bowler. Both turtles have computers on their backs. The text "Model Internet Club" is at the bottom in a typewriter font.
    January 10, 2026 @ 10:30 am - 12:30 pm 🚂 Model Internet Club

    🚂 Model Internet Club

    Iffy Books 404 S. 20th St., Philadelphia, United States

    The Model Internet Club is back! Join us every second Saturday from 10:30 a.m. to 12:30 p.m. for an informal meetup focused on building small-scale computer networks. No registration needed […]

  • Sun 11
    Flyer with 6 LED lights attached to a Pi Pico development board, with the following text: Pico LED Hourglass Workshop ⌛ Iffy Books A programmable timer for writing, cooking, games, etc.!
    January 11, 2026 @ 10:30 am - 12:30 pm ⏳ Pico LED Hourglass Workshop

    ⏳ Pico LED Hourglass Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Learn to make a programmable game timer and dice with a Pi Pico microcontroller! First you’ll solder six LEDs, two switches, and a vibration motor to the board’s GPIO pins. […]

  • Sun 11
    Circle-A anarchy symbol in cross-stitch form | Credit: https://www.deviantart.com/missy-tannenbaum/art/Cross-Stitch-Motif-Anarchy-60553547
    January 11, 2026 @ 3:00 pm - 5:00 pm Anarchist Sewing Club

    🧵 Anarchist Sewing Club

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come out and learn to sew! Or bring whatever you're working on!   Image credit

  • Tue 13
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    January 13, 2026 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Thu 15
    January 15, 2026 @ 6:30 pm - 8:30 pm

    💻 Nushell Basics

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Nushell is a modern shell that combines a rich programming language with a fully functional shell for efficient and versatile usage. Register coming soon!

  • Sat 17
    Price tag with a photo of an ESP32 microcontroller, an LED screen that reads "useful info here :)" and the following text: ESP32 Breadboard Display Kit Connect to wi-fi and display weather, headlines, or transit times on a 1-inch screen! • ESP32 board w/ USB-C port • 0.96" OLED screen • 400 tie point breadboard • 3 push buttons • screw terminal for power/audio • 1 meter single core jumper wire • mini wire cutter/stripper tool 💭 Details and examples at iffybooks.net/esp32-breadboard-display
    January 17, 2026 @ 10:30 am - 12:30 pm 🌤️ Breadboard Weather Display Workshop

    🌤️ Breadboard Weather Display Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Learn to connect an ESP32 microcontroller and an OLED screen on a breadboard to make a web-connected weather display! Register coming soon!

  • Sun 18
    Pi Pico Development board with red and black wires running to a USB port, attached to the Pico with twist tie wire
    January 18, 2026 @ 10:30 am - 12:30 pm 🔄 Solder & Code: Pico Power Cycler

    🔄 Solder & Code: Pico Power Cycler

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build a gadget that turns power on and off for a USB-powered device. Useful for rebooting solar-powered radios, making decorations blink, etc. No experience with soldering […]

  • Sun 18
    Pi Pico Development board with red and black wires running to a USB port, attached to the Pico with twist tie wire
    January 18, 2026 @ 10:30 am - 12:30 pm 🔄 Solder & Code: Pico Power Cycler

    🔄 Solder & Code: Pico Power Cycler

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build a gadget that turns power on and off for a USB-powered device. Useful for rebooting solar-powered radios, making decorations blink, etc. No experience with soldering […]

  • Tue 20
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    January 20, 2026 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Wed 21
    A photo of CIA headquarters: a wide office building with a retro concrete awning and a large lawn
    January 21, 2026 @ 7:00 pm - 8:30 pm 👁️ Intelligence History Reading Group: ‘Agents of Subversion’ by

    👁️ Intelligence History Reading Group

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Stay tuned for details!

  • Sat 24
    Package label with a circuit diagram showing the connections between a Pi Pico development board, a DFplayer MP3 player module, and a speaker. The text reads: Breadboard MP3 Player Kit • Pi Pico board with USB-C port  & pre-soldered header pins • DFplayer MP3 Player module • 3W speaker • 830 tie point breadboard • 2-prong screw terminal • 4 push buttons • single-core wire (20") • mini wire cutter/stripper tool • M2 screw Instructions & MicroPython code at iffybooks.net/breadboard-mp3-player
    January 24, 2026 @ 10:30 am - 12:00 pm 🎶 Breadboard MP3 Player Workshop

    🎶 Breadboard MP3 Player Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Stay tuned for details! Instructions & example code Here's what's included in the kit: Pi Pico board with USB-C port & pre-soldered header pins DFplayer MP3 Player module 3W speaker […]

  • Tue 27
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    January 27, 2026 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Wed 28
    An artist's rendering of a black hole, with a large patch of bright white light on the right side and a dimmer area of light on the left.
    January 28, 2026 @ 7:00 pm - 8:30 pm 🪐 Speculative Futures Reading Group

    🪐 Speculative Futures Reading Group

    Iffy Books 404 S. 20th St., Philadelphia, United States

    The Speculative Futures Reading Group meets on the last Wednesday of every month at 7 p.m.!

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