We’ve been trying fit in a tour of the Pacific Northwest for a couple of years now. This week is a perfect excuse. Hackaday is proud to sponsor the Open Hardware Summit which will be held in Portland this Friday! Hackaday believes in the free and open sharing of information and ideas. Open Hardware has…
via Hackaday in Portland this Week for Open Hardware Summit — Hackaday
For the next post in the Creating A PCB series, we’re going to continue our explorations of Eagle. In Part 1, I went over how to create a part from scratch in Eagle. In Part 2, we used this part to create the small example board from the Introduction. This time around I’ll be going over Design […]
via Creating A PCB In Everything: Eagle DRC and Gerber Files — Hackaday
I put together an I2C interface board for these displays based on a design by Adafruit, using a Holtek HT16K33 RAM Mapping 16*8 LED Controller Driver chip.
A nice feature of this chip is a dimming command that provides display dimming in 1/16 increments.
Barbouri has shared the board on OSH Park:
Due to the nature of the breakout, many components can be omitted depending on the needed sections.
| Part | Quantity | Description | Part Number |
|---|---|---|---|
| Teensy | 1 | Teensy Microcontroller | OSH Park or Adafruit or |
| PCB | 1 | Bare PCB | OSH Park |
| LED | 11 | 0603 or 0805 LED | any |
| 1uF cap | 2 | 0603 or 0805 cap | any |
| 0.1uF cap | 4 | 0603 or 0805 LED | any |
| 10uF cap | 2 | 0603 or 0805 cap | any |
| LiPO Battery | 4 | Any with JST connector | Adafruit |
| JST Battery Connector | 4 | JST-PH-2-THM-RA | |
| MCP73871 | 2 | LiPO Battery Management IC | MCP73871 |
| MCP1703 | 2 | 3.3V voltage regulator | MCP1703 |
| Large (100uF+ cap) | 2 | 0603 or larger | any |
The various use cases may or may not require some or all of these pins. Here’s the most you can solder to the board in the simplest orientation
Most of these can be swapped, omitted, or assembled with small 1×3 connectors or whatever you have on hand. Otherwise, they can be purchased at Digikey or Adafruit
| Part | Quantity | Description |
|---|---|---|
| Arduino Sockets | 2 | 0.1″ 1×8 F socket |
| Arduino Sockets | 2 | 0.1″ 1×6 F socket |
| 3 wire output headers | 2 | 0.1″ 3×8 M Angle Pins |
| 3 wire output headers | 1 | 0.1″ 3×6 M Angle Pins |
| Servo output headers | 2 | 0.1″ 3×3 M 90 degree Pins |
| Servo output headers | 1 | 0.1″ 3×4 M 90 degree Pins |
Chip McClelland created this visual aid for parking in a two car garage:
Let’s face it, garages are simply never big enough. There is always more you want to put into a garage than will fit and once you park your cars, things get tighter still. To get the most out of this space, your car needs to be parked correctly everytime. That is what this little device seeks to do.
chipmc has shared the board on OSH Park:
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Speakers last year included Reinier van der Lee:
OSH Park 