Friday Hack Chat: Eagle PCB Design with Matt Berggren

Eagle is a household name for all Hackaday regulars. Here’s your chance to learn about upcoming features, get your ‘how do I do this in Eagle?’ questions answered, and get your wishlist items heard. Join us on Friday at 12:00 PST for a live Hack Chat about the Eagle PCB Design software. Hosting this week’s…

via Friday Hack Chat: Eagle PCB Design with Matt Berggren — Hackaday

Friday Hack Chat: Eagle PCB Design with Matt Berggren

Building Beautiful Boards With Star Simpson

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Star Simpson, creator of Circuit Classics, gave this excellent talk at Hackaday Supercon:

Building Beautiful Boards With Star Simpson

Over the last decade or so, the cost to produce a handful of custom PCBs has dropped through the floor. Now, you don’t have to use software tied to one fab house – all you have to do is drop an Eagle or KiCad file onto an order form and hit ‘submit’.

Building Beautiful Boards With Star Simpson

ESPTool: WiFi Security Swiss Army Knife

Daniel Grießhaber created this convenient tool to test your WiFi Security against attackers:

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ESPTool

Demonstrate how easy it is to crack a WiFi Password or jam your WiFi so you can’t access the internet.  Designed for education and self-tests.

ESPTool has the following hardware:

  • SSD1306 based OLED Display, connected via I2C
  • microSD Card Socket connected over the SPI interface
  • 3 general purpose buttons
  • ESP8266-12E Module
  • TPS63031 Buck-/Boost-Converter with an input range from 1.8V – 5.5V
  • MCP73831 Single-Cell LiPo Charger Chip
  • CP2012 USB to UART converter Chip

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The design files and source code are available on GitHub:

images11dangrie158/ESPTool

ESPTool: WiFi Security Swiss Army Knife

Open Source AIS Transponder

Automatic identification system (AIS) is an automatic tracking system used on ships.  Peter Antypas designed a low-power AIS transponder:

images1 Open Source AIS Transponder (Class B)

This is the first ever (that I’m aware of) attempt at creating an open source AIS transponder

Hardware:

On the hardware side, the design is based on two Silicon Labs 4463 transceiver ICs and an STM32F302CBT6 ARM Cortex M4 microcontroller. One of the SiLabs ICs acts as a transceiver, while the other IC works as a receiver only. In receiver mode, each IC tunes to a different channel. When a transmission is scheduled, the ICs swap channels if the transceiver is not listening on the next transmit channel. This configuration may be construed as a violation of the AIS specification, but it makes for a much simpler PCB layout and negates the need for a 3-position RF switch.

Software:

There are two programs that need to be installed on the flash. The bootloader and the main application.

petera650 has shared the boards on OSH Park:

RF side of AIS transponder

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Order from OSH Park

Logic / digital side of AIS transponder

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Order from OSH Park

Open Source AIS Transponder

Arduino Pro Trinket Bubble Display

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davedarko wrote in his LED displays on Arduinos – a collection project log on hackaday.io:

Arduino Pro Trinket – bubble display

With 4 of HP QDSP-6064 bubble displays in a drawer I felt ready to do something with them and the “Clocks for Social Good” – call on hackaday.com finally got me going

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The design files are available on GitHub:

davedarko has shared the board on OSH Park:

ProTrinket Bubble Display shield

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Order from OSH Park

Arduino Pro Trinket Bubble Display

3 Inch Tall 7-segment Clock

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Kevin Rye decided to build a 15 inch long digital clock after acquiring these 3 inch 7-segment displays.  He documented the project from start to finish:

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I picked up these sweet LUMEX S101D22TR 7-Segment LCDs the other day.

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The PCBs for the hours, minutes, and seconds display modules are identical. They’ll just be wired differently.

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On the driver boards, data flows in from the left out to the next section on the right.

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The source files can be downloaded from:

15inch-LCD-Clock-Source.zip

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3 Inch Tall 7-segment Clock