brennanMKE

Killing Arduino

The Arduino IDE has had a bug which causes the entire screen to go blank and become unusable. The following issues are related to this problem. It does not appear to be closed, but the upstream bug may have been fixed indirectly.

• [arduino-ide#2297]
• [arduino-ide#2148]

But if this bug is not fix, you may need to recover from the blank screen. It appears it requires killing all Arduino processes since there are some background processes which support the app. You can start by getting the process id from Activity Monitor. Filter to "Arduino" and press cmd-i to get the info. Take id and run this command with it. It is in parenthese with Process Group.

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Jitsi Meet with a headless Raspberry Pi

To set up a headless Raspberry Pi to connect to a Jitsi Meet server using SIP and WebRTC, you'll need the following:

1. SIP Gateway: Set up a SIP gateway for your Jitsi Meet server. Jitsi provides a component called Jigasi for this purpose. Jigasi acts as a gateway between SIP and the Jitsi Videobridge.

2. SIP Client: Install a command-line SIP client on the Raspberry Pi. Examples include Linphone or PJSUA from the PJSIP project.

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Electronics Inventors

• Hedy Lamarr - Known for her career in Hollywood, Lamarr was also a talented inventor. She co-invented an early version of frequency-hopping spread spectrum communication, a technology that laid the foundation for modern Wi-Fi and Bluetooth.
• Ada Lovelace - Often regarded as the first computer programmer, she worked on Charles Babbage's early mechanical general-purpose computer, the Analytical Engine. Her notes on the engine include what is now recognized as the first algorithm intended to be processed by a machine.
• Grace Hopper - A rear admiral in the U.S. Navy, she was a pioneer in computer programming and was one of the first programmers of the Harvard Mark I computer. She also developed the first compiler for a computer programming language and conceptualized the idea of machine-independent programming languages, which led to the development of COBOL.
• Edith Clarke - The first woman to earn an electrical engineering degree from MIT, Clarke invented a graphical calculator that g

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Noisebridge Rules

The top rule is Be Excellent. All rules that follow are examples of not being excellent.

Is there a no sleeping rule at Noisebridge? What about living in the space?

Yes, Noisebridge has a policy against sleeping and living in the space. This is to ensure that the space remains available and accessible for the community's intended purpose: collaboration, learning, and making. The rule is in place to maintain a productive environment and to comply with legal and safety regulations. Noisebridge is dedicated to being a welcoming and active makerspace, and as such, it is not designed to support living accommodations. If you have specific questions about this policy or need clarification on acceptable use of the space, I can provide more detailed information from Noisebridge's guidelines and policies.

What is to be done when someone is sleeping or living in the space?

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Raspberry Pi 2011.12 with USB adapter for WiFi

Realtek Semiconductor Corp. RTL8188ETV Wireless LAN 802.11n Network Adapter

If you are trying to use this USB adapter to connect your 2011.12 Raspberry Pi to connect to WiFi you may have difficulty because there is not driver preinstalled for it from the version of Linux installed using the [Raspberry Pi Imager]. What you will need is the [rtl8188eu] driver. The following instructions will get your Pi up and running on WiFi.

To check which USB adapter you have, run lsusb and see if it is an adapter from Realtek Semiconductor Corp. If it matches the name above the instructions below will help you build and install the required driver.

First, install the dependencies.

brennanMKE

Flaschen Taschen on a Raspberry Pi

Build and run FT on a Pi.

Preparing SD Card

Use Raspberry Pi imager to install OS and create a username of noisebridge to log into the Pi.

Building FT

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Electronics Workbench

I’m setting up a workbench for working with electronics to do soldering and programming microcontrollers. Please provide a list of essential tools and supplies for my workbench.

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Setting up a workbench for soldering and programming microcontrollers involves gathering a variety of tools and supplies to ensure you can tackle projects efficiently and safely. Here's a list of essential tools and supplies you might consider:

Basic Tools and Supplies for Soldering

• Soldering Iron: A good quality, temperature-controlled soldering iron is crucial. Consider one with interchangeable tips for different tasks.

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OTA support for ESP32

Please show me code which would check a server which has the new firmware along with a checksum which is then downloaded, verified and installed with fallback support. Ideally a single JSON file would list the latest release to install related to hardware models. (sent to ChatGPT)

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Implementing OTA updates on an ESP32 that checks a server for new firmware, along with a checksum for verification, and then downloads, verifies, and installs it with fallback support, involves several steps. I'll provide a simplified example in Arduino code. This example assumes you have a server hosting a JSON file indicating the latest firmware and its checksum, and the firmware binary itself.

Assumptions:

• A server hosts the firmware binary and a JSON file.

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The Flaschen Tachen is a great way to give members of Noisebridge a system which is hackable. What are other systems that Hackspaces have made which were hackable?

Hackspaces and makerspaces around the world often create unique, hackable systems that embody the spirit of innovation and open-source technology. Here are some notable examples:

1. Interactive LED Walls: Similar to the Flaschen Taschen at Noisebridge, other spaces have created large-scale LED displays that can be programmed and controlled by members.

2. Hackable Door Access Systems: Many hackspaces develop their own electronic access systems, allowing members to experiment with RFID, NFC, or even biometric access controls.

3. DIY 3D Printers and CNC Machines: Custom-built or modified 3D printers and CNC machines are common. These not only serve a practical purpose but also provide a platform for learning and experimentation in hardware and software.

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#include "AutomaticNetworking.h"

#define ATTEMPT_MAX 10
#define ATTEMPT_DELAY 500

AutomaticNetworking::AutomaticNetworking() {
    // Constructor - You can initialize variables here if needed
}

bool AutomaticNetworking::connect() {