Shared Projects

No more messing around with power supply parts. This is a complete 1.2A adjustable switching power supply on a chip, with 2 preset voltages. Up to 95% efficient switching voltage regulator, capacitors and all, on an oldschool DIP-8 chip size board. Select 3.3v or 5v built in, or add a single resistor for 0.8v-26v. The entire bottom of the ‘chip’ is an unbroken ground plane, helping to protect your design from power supply switching noise. This is an open source design, and I hope to sell pre-assembled boards. I want to explore a variety of effort saving breakouts in this easy to use DIP form factor. Not done yet, need to add some labels and make a few.

Details on hackaday.io https://hackaday.io/project/10561-lil-all-in-one-power-chip

fix traces “autorouted”

FT232R USB - TTL Adapter

MPC3221 MODULE A break out board for the MCP3221AX A to D convertor. Pin out matches the AF-ADS1015.

Pin out:

1 - 5V

2 - GND

3 - SCL

4 - SDA

5 - NC

6 - NC

7 - AIN

Values:

R1 - 2K

R2 - 2K

C1 - .1uF @16V

U1 - MCP3221AX

Version 1.2 of my non-SMD pcb designed for use with rx5808-pro-diversity project started by Crazyshea.

Changelog:

Rev 3:

• Added pads for alternative OLED screen

Rev 2:

• Fixed missing track on RSSI_A

Rev 1:

• Added IR Emitter
• Added SPI port

Details can be found on

RCGroups: http://www.rcgroups.com/forums/showthread.php?t=2477752

and Github:

https://github.com/sheaivey/rx5808-pro-diversity/blob/master/docs/oled-arduino-nano.md

https://github.com/RCDaddy/T-Box

Check it out on Github Here

The MAX1811 Charger IC is set to 500mah. Only use a battery with more than 500mah

Components:

• 3x 1206 SMD Resitors (150Ω, 10kΩ, 27kΩ)

• 1x 1206 Red LED (any led should work)

• 2x 1206 SMD Capacitor 10μf

• 2x micro switch MSK-12C02

• 1x micro usb socket (ebay id: 121829362799)

• 1x MAX1811 lithium charger IC

gb

BESCape by Andrew Henderson. Beagle Entertainment System cape for BeagleBone: http://beaglesnes.sourceforge.net/ GitHub repo: https://github.com/hendersa/bescape

Connect 5V sensors to the micro:bit

Shunt bias power supply

shunt regulator for tube bias supply

ramps-fd variant; untested

https://github.com/quixotic120/RAMPS-FD3

For those who prefer 3mm LED’s instead of 5mm.

The recommended capacitor is a 10µF polarized capacitor.

Arduino Uno shield for programming the ATtiny45 and ATtiny85 through hole ICs, with breakout headers and a test LED to use with the blink arduino example, though you must set the LED pin to pin 0.

VERIFIED WORKING - The reset jumper is fixed in this version

Designed using Fritzing

11mm Version that I forgot to share a LONG time ago with the 10/12mm versions.

A small FET driver intended for a lot of the small twisty lights out there. Here are the differences from the other MTN-10/11/12DD drivers:

• No copper around ground ring on component side. This makes isolating a twisty light much easier.
• Different milled shape makes installation in a lot of the tiny twisty / clicky lights easier with less filing.

For a clicky light, if the battery tube does not touch the driver or you can’t solder to the pill, then this is not a good choice because you will have a difficult time getting a good ground.

The regular MTN-11/12DD is much better in these scenarios due to the exposed copper on the component side of the driver.

A small board to control intensity and color of RGB LED strips, supporting either DotStar or NeoPixel with a selection switch

Circuit Maker project: http://workspace.circuitmaker.com/Projects/E018036A-EE0F-4A8F-B97C-0EB9E18DF42C Github: https://github.com/fearedspark/RGB_LED_Strip_Controller