Month: March 2015

Mustang Indicator Design

 

For my Go Cart, i wanted to add Turn signal indicators. I liked the shift register design of the mustang indicator lights, so I based my design off that.

One specific requirement: The satisfying “Click” needs to be audible. For this reason I used relays instead of directly driving LEDS.

signaldriver_relay

transistor/relay used to drive LEDS
signaldriver_attiny
A bit overkill, but the AT45 does exactly what i need for this project
signaldriver_isp
Of course, we need a way to program the AT45
signaldriver_PCB
Final layout design.
Finally, a completed product!
Finally, a completed product!

USB Breakout

Created this board to use as a simple tool for analyzing what is going through the USB cable. It plugs inline of a usb host device and the device to be tested.

All signals are normally open with pin headers attached to allow signal probing, current/voltage metering, rerouting, etc. Headers also allow other boards to be attached, making it easier to attach other monitoring tools.

Schematic design
Schematic design
PCB design
PCB design
Finally, the printed product. Note USB Male is not populated, but Micro usb works fine.
Finally, the printed product. Note USB Male is not populated, but Micro usb works fine.