Shared Projects

controls 2 dc motor using L293D

Reduction board for TSSOP 32 pin test socket to DIL. The socket can be ordered on eBay: http://www.ebay.com/itm/OTS-28-065-01-ENPLAS-TSSOP-28-TEST-AND-BURN-IN-SOCKET-OPEN-TOP-/111188124127?pt=LH_DefaultDomain_0&hash=item19e35421df

Simple 32pin Reduction PCB 0.6" to 0.9"

Add a second receiver to your GPS antenna.

http://enicomms.com/gpssplit/ for more info.

Sudden Ionospheric Disturbance receiver. Useful for Astronomy work.

10W VHF/UHF duplexer suitable for your HT and home brewed antennas.

Arduino based DDS with I2C LCD. Developed for use with home brewed HF radio’s. Includes Mic/PTT etc. Uses cheap DDS module from ebay.

My take on the G6LVB satellite antenna controller.

AVR based APRS Tracker

getting to blinky http://youtu.be/iTyi3RvNoB0

Moo 1.1 Programmer

This board programs the Moo 1.1 from the SPQR group at the University of Michigan.

From the UMASS Moo site:

“The UMass Moo is a passive Computational RFID that harvests RFID reader energy from the UHF band, communicates with an RFID reader, and processes data from its onboard temperature sensor and accelerometer. Its function can be extended with its general-purpose I/Os, serial buses, and 12-bit ADC/DAC ports. The Moo provides a RFID-scale, fully programmable, batteryless sensing platform. The programs execute on an MSP430 microcontroller. The Moo 1.0 derives from the open source Intel DL WISP 4.1. Why is it called the Moo? It’s the beefiest embedded platform in its class with the most code space and RAM for the least energy. The device also resembles a longhorn steer.”

Bill Of Materials:

Arduino Shield Graphic Equalizer Display Filter Breakout - MSGEQ7

This simple board breaks out the MSEQ7 according to the application notes, and fits nicely on top of an arduino Currently this is for through hole parts for ease of soldering, look for the SMD version soon.

Bill Of Materials:

• 33pF PTH Ceramic Capacitor x2
• 0.1uF PTH Ceramic Capacitor x4
• 1000pF PTH Ceramic Capacitor x2
• 200kOhm PTH Resistor x2
• 5mm LED x1
• 330 Ohm PTH Resistor x1
• Push button x1
• Arduino shield headers x1
• Stereo Audio Jack 3.5mm x1
• MSEQ7 IC x2

Graphic Equalizer Display Filter Breakout - MSGEQ7

Audio equalizer for use with graphic displays. This simple board breaks out the MSEQ7 according to the application notes, but is not Arduino specific. Currently this is for through hole parts for ease of soldering, look for the SMD version soon.

Pinout:

• LT - Left analog input, use STR and RST to get each band (0-6) of the audio spectrum
• RT - Right analog input, use STR and RST to get each band (0-6) of the audio spectrum
• STR - Strobe digital output, controls the strobe of the equalizer IC
• RST - Reset digital output, controls the reset of the equalizer IC

Bill Of Materials:

• 33pF PTH Ceramic Capacitor x2
• 0.1uF PTH Ceramic Capacitor x4
• 1000pF PTH Ceramic Capacitor x2
• 200kOhm PTH Resistor x2
• Stereo Audio Jack 3.5mm x1
• MSEQ7 IC x2

ir stereo remote dim

http://letsmakerobots.com/node/40186 ATtiny 85 and DRV8830 Robot Controller Tested and Working

More on parts later

ANSI T2 Optical Interface

miniProgrammer For Tricorder

DIP-18 Breakout for ULN2803 Darlington Array. I have included solder jumpers to stack up each channel to increase sourcing capability. These work great as a general purpose driver for LED’s, Motors, and heaters.