DO NOT USE

• CORRECT VERSION:
  • teensy-weather-badge: teensyi2c.kicad_pcb
• KNOWN ISSUE:
  • Incorrect I2C bus pins used on Teensy to connect the BME280 and OLED
  • Fix requires cutting traces and soldering bodge wires
• Repo: teensy-weather-badge
• Commit: 9f42f59
• File: teensyi2c.kicad_pcb

USB Password Generator

Attiny2313 Breakout Board

24 CHANNEL RELAY DRIVER

Finished WS2812B BreakOut

Voltage divider breakout for 4 Channels ADS1015/ADS1115 ADC Board See github description for more information
See my blog for some other projects

Extra Small TV-B-GONE board. Details after testing.

Zipit Z2 Breakout v2

Parts List

• C1, C2: 4.7uF 6.3V 0603 (C1608X5R0J475K080AB)
• L1: 1uH 0805 (LQM21PN1R0MC0D)
• U1: TI 5V Regulator (TPS61240DRVT)
• J1: Hirose to Zipit Connector (ST60X-36S(30))
• J2: USB Host Port (292303-1)
• J3: Amphenol FCI Micro USB Port (10118194-0001LF)
• R1: 10K ohm 0603 Resistors (Regulator Enable)
• R2, R3: 4.7k-10k ohm 0603 Resistors (I2C)
• 1.27mm Headers

Details

Both USB Ports are designed to be optionally broke off the middle section. Score the board with a blade on both sides down the line of holes and snap off the end. Each board when broken off can be used independently.

Main Zipit Board

This section of board contains the Hirose 36 pin connector, 1.27mm pitch headers, I2C resistors and “USB Jumpers”. The USB Jumpers allow connecting either the Micro USB (for device mode) or USB A (for host mode) port to the USB pins on the Zipit. The center pad of the jumper is connected to the Zipit. Bridge the center pad to the left or right pad with solder to set Host or Device mode.

USB-A Board

This section of board contains a USB A Port, 3.3V to 5V boost regulator, 1.27mm pitch header and jumper pads for the regulator and host power. When attached to the main Zipit board the “Host Pwr” Jumper sets which power is supplied to the port; DCIN from the Zipit or 5V from the regulator. The “Reg Jmpr” sets the regulator to be always “ON” or by toggling the “EN"able pin high (GPIO54 or via header).

Micro USB Board

This board contains a Micro USB port and 1.27mm pitch header. The VCC pin is connected to DCIN allowing you to power the Zipit via USB cable.

Control two nixie tubes

DIY airplane autopilot project

A Prototype Breakout board useful with I2C sensors or any sensors with 4 wires

tofe.io to apertus AXIOM adapter

NOT TESTED!!!! Better improved charger board for base. 1.5A/2A charging current and 9V-14V input voltage.

This is a revision of the Neo Geo controller to Atari 2600 adapter. This one is revised to use through hole ports. I added text to note that the board will also work with the Sega Mastersystem. 2 buttons will act as fire on Atari. On the SMS 2 buttons will act as Button 1 and the other 2 buttons will act as Button 2. As with the original design the console will have to be moded with an external jack to bring Reset and Select external to connect to the header of the board. External 5v and GND are probably not necessary and were added in the off chance that the Atari 2600 doesn’t output enough power to power a more advanced Neo Geo Joystick. Most Neo Geo controllers don’t require power at all. I have yet to test this board, however it is based on a hand wired version that works fine.