Skip to content

Iffy Books | 404 S. 20th St., PHL

hacking, free culture, gardening, zines

  • hours
  • events
  • about
  • zines
  • shop
  • donate
33 events found.

Events Search and Views Navigation

Event Views Navigation

  • List
  • Month
  • Day
Today
  • April 2025
  • Fri 11
    Photo of a USB port with exposed terminals next to a USB plug, with black and red lines indicating wires connecting them. Next to the black wire is text reading "GND to GND," and next to the red wire is "VCC to VCC"
    April 11 @ 1:00 pm - 2:00 pm ⚑️ Beginner Soldering: USB Data Blocker

    ⚑️ Beginner Soldering: USB Data Blocker

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

    Charging your phone in a public place can be stressful. What if someone is collecting your metadata for marketing purposes? What if they're copying your files or installing malware? A […]

  • Fri 11
    Label with the following text: Digital Synth Workshop Make a custom digital synthesizer with a Pi Pico clone board! β€’ RP2040 development board (a.k.a. Pi Pico) β€’ 64 rainbow wires (for buttons & knobs) β€’ red and black wires (for power & audio) β€’ mono screw-terminal audio jack β€’ rotary encoder w/ knob β€’ potentiometer w/ knob β€’ dipole on/off switch β€’ 2x4 push button keypad β€’ 2-prong push button switch x8 β€’ through-hole push button switch x2 β€’ 2.2 uF non-polarized capacitor (225) β€’ 4.7 uF non-polarized capacitor (475) β€’ 10 uF non-polarized capacitor (106) β€’ LED light x5 β€’ 5 100 Ohm resistor x5 β€’ tiny screwdriver β€’ push pin β€’ M2 screws (self-tapping, 10mm) x8 β€’ plastic spacer x16 β€’ 3x AA battery clip β€’ micro USB cable with data β€’ wooden box
    April 11 @ 2:00 pm - 4:00 pm 🎹 Pico MP3 Sampler Workshop

    πŸ’₯ Digital Synth Workshop

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

    Design your own digital synthesizer in a wooden box using a Pi Pico clone board! We'll have soldering irons, hot glue, and all the other supplies you'll need. It's an […]

  • Sat 12
    April 12 @ 10:00 am - 11:30 am πŸ’‘ Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    πŸ’‘ Solder & Code: Make a 3-Button Keyboard with a Pi Pico

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

    In this workshop you'll build and program a customizable 3-button USB keyboard using a Pi Pico microcontroller. You can program each button to type a chunk of text (e.g., your […]

  • Sun 13
    Photo of a green breadboard with an ESP32-C3 microcontroller attached to a USB power bank, and wires running to two switches, an active alarm speaker, and a vibration motor
    April 13 @ 10:00 am - 11:30 am ⏰ Buzz & Beep: Make a Custom Alarm with an ESP32-C3

    ⏰ Buzz & Beep: Make a Custom Alarm with an ESP32-C3

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

    Build and program an alarm that makes sound and vibrates! No soldering required! We'll be using Micropython. To complete this project you'll need to buy a kit for $12.95. Here's […]

  • Tue 15
    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.
    April 15 @ 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 16
    Flyer image with a row of ten 1/4-inch phone plugs and the following text in blue: Beginner Soldering: Make a DIY Guitar Cable
    April 16 @ 12:00 pm - 1:30 pm ⚑ Beginner Soldering

    ⚑ Beginner Soldering: Make a DIY Guitar Cable

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

    Join us for a relatively quick and easy soldering workshop, suitable for total beginners! You'll strip some wires and solder 1/4-inch plugs to the ends, creating your own guitar cable. […]

  • Thu 17
    Painting of workers and enormous machines in a Detroit auto plant, painted by Diego Rivera
    April 17 @ 7:00 pm - 9:00 pm πŸ“š Capital Reading Group

    πŸ“š Capital Reading Group

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

    Join us on the first and third Thursday of every month at 7 p.m. for a reading group on Capital by Karl Marx. We'll post the sections we're covering before […]

  • Fri 18
    Label with the following text: Digital Synth Workshop Make a custom digital synthesizer with a Pi Pico clone board! β€’ RP2040 development board (a.k.a. Pi Pico) β€’ 64 rainbow wires (for buttons & knobs) β€’ red and black wires (for power & audio) β€’ mono screw-terminal audio jack β€’ rotary encoder w/ knob β€’ potentiometer w/ knob β€’ dipole on/off switch β€’ 2x4 push button keypad β€’ 2-prong push button switch x8 β€’ through-hole push button switch x2 β€’ 2.2 uF non-polarized capacitor (225) β€’ 4.7 uF non-polarized capacitor (475) β€’ 10 uF non-polarized capacitor (106) β€’ LED light x5 β€’ 5 100 Ohm resistor x5 β€’ tiny screwdriver β€’ push pin β€’ M2 screws (self-tapping, 10mm) x8 β€’ plastic spacer x16 β€’ 3x AA battery clip β€’ micro USB cable with data β€’ wooden box
    April 18 @ 2:00 pm - 4:00 pm 🎹 Pico MP3 Sampler Workshop

    πŸ’₯ Digital Synth Workshop

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

    Design your own digital synthesizer in a wooden box using a Pi Pico clone board! We'll have soldering irons, hot glue, and all the other supplies you'll need. It's an […]

  • Fri 18
    The logo for The Open Organization of Lockpickers, with the acronym TOOOL at the top in red. Each letter O in the acronym is designed to look like the keyway of a lock.
    April 18 @ 6:00 pm - 8:00 pm πŸ”“ TOOOL Lock Picking Meetup

    πŸ”“ TOOOL Lock Picking Meetup

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

    Join us from 6–8 p.m. for a meetup run by the Philadelphia Chapter of the Open Organization of Lockpickers. > Come join us for our monthly open pick night at […]

  • Sat 19
    Photo of a green breadboard with an ESP32-C3 microcontroller attached to a USB power bank, and wires running to two switches, an active alarm speaker, and a vibration motor
    April 19 @ 10:00 am - 11:30 am ⏰ Buzz & Beep: Make a Custom Alarm with an ESP32-C3

    ⏰ Buzz & Beep: Make a Custom Alarm with an ESP32-C3

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

    Build and program an alarm that makes sound and vibrates! No soldering required! We'll be using Micropython. To complete this project you'll need to buy a kit for $12.95. Here's […]

  • Sun 20
    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.
    April 20 @ 10:30 am - 12:30 pm πŸš‚ Model Internet Club

    πŸš‚ Model Internet Club

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

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

  • Tue 22
    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.
    April 22 @ 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 23
    Photo of a USB port with exposed terminals next to a USB plug, with black and red lines indicating wires connecting them. Next to the black wire is text reading "GND to GND," and next to the red wire is "VCC to VCC"
    April 23 @ 4:30 pm - 5:30 pm ⚑️ Beginner Soldering: USB Data Blocker

    ⚑️ Beginner Soldering: USB Data Blocker

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

    Charging your phone in a public place can be stressful. What if someone is collecting your metadata for marketing purposes? What if they're copying your files or installing malware? A […]

  • Wed 23
    Photo of a USB port with exposed terminals next to a USB plug, with black and red lines indicating wires connecting them. Next to the black wire is text reading "GND to GND," and next to the red wire is "VCC to VCC"
    April 23 @ 4:30 pm - 5:30 pm ⚑️ Beginner Soldering: USB Data Blocker

    ⚑️ Beginner Soldering: USB Data Blocker

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

    Charging your phone in a public place can be stressful. What if someone is collecting your metadata for marketing purposes? What if they're copying your files or installing malware? A […]

  • Wed 23
    Top-down photo of an FM transmitter circuit on a printed circuit board, with a capsule microphone and audio input jack on the left side
    April 23 @ 6:00 pm - 8:00 pm

    πŸ“» Soldering Practice: FM Radio Transmitter

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

    Come out and get some soldering practice! This time we're assembling a short-range FM transmitter kit with a built-in mic and a 1/8" audio input jack. This project is recommended […]

  • Thu 24
    Animated GIF of a heart-shaped printed circuit board with red LEDs around the edge, slowly turning on and off
    April 24 @ 12:00 pm - 1:30 pm ❀️ Soldering Practice: LED Heart Board

    ❀️ Soldering Practice: LED Heart Board

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

    Come out and get some soldering practice! This time we're making a heart-shaped board with 22 LEDs, using an oscillator circuit to dim and brighten them at the speed you […]

  • Thu 24
    Black and white photo of a shirtless hunk sitting on a fence, with the following text: Overflowing Poetry Presents: Mark Francis Johnson Ryan Skrabalak Jennifer Soong Ted Rees Iffy Books 404 S. 20th Thurs 4/24 7p
    April 24 @ 7:00 pm - 9:00 pm

    πŸ—―οΈ Overflowing Poetry: Mark Francis Johnson, Ryan Skrabalak, Jen Soong & Ted Rees

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

    Doors at 7, reading at 7:30!

  • Fri 25
    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"
    April 25 @ 11:00 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: coming soon!

  • Fri 25
    The Meshtastic logo, with the word "Meshtastic" in black
    April 25 @ 3:00 pm - 5:00 pm πŸ“‘ Meshtastic 101

    πŸ“‘ 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-sizedΒ LoRa radio transceivers. We’ll show you how to flash the […]

  • Sat 26
    Simplified illustrations of four types of waves: a sine wave in red, a square wave in green, a triangle wave in blue, and a sawtooth wave in purple. CC-BY Omegatron, from Wikipedia.
    April 26 @ 10:00 am - 12:00 pm 🎹 Pico MP3 Sampler Workshop

    🎹 Pico MP3 Sampler Workshop

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

    Create your own digital audio sampler using a Pi Pico clone board! This project requires some soldering. It's recommended for folks who have soldered once or twice before, but beginners […]

  • Sun 27
    April 27 @ 10:00 am - 11:30 am 🌊 Wave Craft

    🌊 Wave Craft: Music Box Spectrogram

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

    Stay tuned for details!

  • Tue 29
    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.
    April 29 @ 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 30
    Book cover for 'The Year of the Flood' by Maragaret Atwood, with a photo of a red poppy flower overlaid on a person in a feather-covered mask.
    April 30 @ 7:00 pm - 8:30 pm πŸͺ Speculative Futures Reading Group

    πŸͺ Speculative Futures Reading Group: ‘The Year of the Flood’ by Margaret Atwood

    The Speculative Futures Reading Group meets on the last Wednesday of every month at 7 p.m. > Our April book is Margaret Atwood's Year of the Flood and in May […]

  • May 2025
  • Thu 1
    A painting of several factory buildings by Vincent van Gogh. There's matted hay on the ground in the foreground. A person dressed in black in the middle distance is carrying a long yellow object
    May 1 @ 7:00 pm - 9:00 pm πŸ“š Capital Reading Group

    πŸ“š Capital Reading Group

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

    Join us on the first and third Thursday of every month at 7 p.m. for a reading group on Capital by Karl Marx. Readings for May 1st: β€’ The Working […]

  • Fri 2
    Simplified illustrations of four types of waves: a sine wave in red, a square wave in green, a triangle wave in blue, and a sawtooth wave in purple. CC-BY Omegatron, from Wikipedia.
    May 2 @ 3:00 pm - 5:00 pm 🎹 Pico MP3 Sampler Workshop

    🎹 Pico MP3 Sampler Workshop

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

    Create your own digital audio sampler using a Pi Pico clone board! This project requires some soldering. It's recommended for folks who have soldered once or twice before, but beginners […]

  • Fri 2
    The words "Philly 2600" in an old-school digital font
    May 2 @ 6:00 pm - 8:00 pm πŸ’» Philly 2600 Meetup

    πŸ’» 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
    A king penguin head. Photo taken at Edinburgh Zoo, Scotland.
    May 4 @ 10:30 am - 12:30 pm 🐧 Linux Lab

    🐧 Linux Lab: How to Transfer a Large File

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

    The first Sunday morning of every month we'll host a drop-in event for Linux beginners. No registration needed. Stay tuned for details! Photo CC-BY-SA Mark Dickson

  • 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.
    May 6 @ 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
    Old-fashioned website screen capture with a repeated picture of a cloud in the background: Welcome To The *Making Your First Website* Workshop Learn HTML and create a home page on Neocities! Total beginners welcome! Iffy Books / Ragman WARNING: this page is under construction Weds, May 7th 6–8 PM Thurs, May 22nd 6–8 PM Sign up at iffybooks.net !
    May 7 @ 6:00 pm - 8:00 pm πŸ’» Make Your First Website

    πŸ’» Make Your First Website

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

    Make a home page like it's 1999! Join us at Iffy Books for a new workshop called Make Your First Website, led by Ragman a.k.a. Richard Green. You'll learn the […]

  • Thu 8
    The Meshtastic logo, with the word "Meshtastic" in black
    May 8 @ 12:00 pm - 1:30 pm πŸ“‘ Meshtastic 101

    πŸ“‘ 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-sizedΒ LoRa radio transceivers. We’ll show you how to flash the […]

  • Fri 9
    Simplified illustrations of four types of waves: a sine wave in red, a square wave in green, a triangle wave in blue, and a sawtooth wave in purple. CC-BY Omegatron, from Wikipedia.
    May 9 @ 3:00 pm - 5:00 pm 🎹 Pico MP3 Sampler Workshop

    🎹 Pico MP3 Sampler Workshop

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

    Create your own digital audio sampler using a Pi Pico clone board! This project requires some soldering. It's recommended for folks who have soldered once or twice before, but beginners […]

  • Sat 10
    Simplified illustrations of four types of waves: a sine wave in red, a square wave in green, a triangle wave in blue, and a sawtooth wave in purple. CC-BY Omegatron, from Wikipedia.
    May 10 @ 10:00 am - 12:00 pm 🎹 Pico MP3 Sampler Workshop

    🎹 Pico MP3 Sampler Workshop

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

    Create your own digital audio sampler using a Pi Pico clone board! This project requires some soldering. It's recommended for folks who have soldered once or twice before, but beginners […]

  • 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.
    May 13 @ 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 […]

  • Previous Events
  • Today
  • Next Events
  • Google Calendar
  • iCalendar
  • Outlook 365
  • Outlook Live
  • Export .ics file
  • Export Outlook .ics file
  • hours
  • events
  • about
  • zines
  • shop
  • donate