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My custom AVR board for hacking. Supports mechatronics with ULN2803, L293D half-bridges, and/or power FETs, plus analog inputs, serial I/O, and Zigbee. All AVR I/O pins are accessible through at least one pad.
Macro photography testing for the Tokina 500mm f/8 mirror telelens. The PCB is lit with a flash below the circuit board and with a blue spot from the side.
I got my first DSLR camera about a year ago and this the 100th image I uploaded to Flickr out of 3000 pictures I've taken during that perioid.
Attenuators, cover off. Notice the unpopulated resistor-shaped
footprint next to the connector -- 50 Ohm input option someday,
maybe?
Very HQ parts, a single of these PCBs did cost big money in its time... Now it is just scrap, I have probably saved it of the shredder hell.
Intel PRO 100 Intelligent Server Adapter with Intel i960.
This is a rare Network-Card with a dedicated I/O-Processor - a part of the I2O System.
Intelligent Input/Output (I2O) is a defunct computer input/output (I/O) specification. I2O emerged from Intel in the mid 1990s with the publication of the I2O specification in 1996 by the Intelligent I/O Special Interest Group. I2O was originally designed to make use of the Intel i960 microprocessor as the I/O offload engine, bringing channel I/O to the PC.
For more info about I2O look at: en.wikipedia.org/wiki/I2O
For more pictures of vintage PC-Cards and Mainboards look at Vintage Computer PC Cards and Mainboards
Intel PRO/1000 GT Desktop Adapter
Intel 82541PI Gigabit Controller
Peripheral Component Interconnect (PCI) 2.3 32-bit 33/66 MHz
Relase Date: 2004
For more pictures of vintage PC-Cards and Mainboards look at Vintage Computer PC Cards and Mainboards
Intel PRO 100 Intelligent Server Adapter with Intel i960.
This is a rare Network-Card with a dedicated I/O-Processor - a part of the I2O System.
Intelligent Input/Output (I2O) is a defunct computer input/output (I/O) specification. I2O emerged from Intel in the mid 1990s with the publication of the I2O specification in 1996 by the Intelligent I/O Special Interest Group. I2O was originally designed to make use of the Intel i960 microprocessor as the I/O offload engine, bringing channel I/O to the PC.
For more info about I2O look at: en.wikipedia.org/wiki/I2O
For more pictures of vintage PC-Cards and Mainboards look at Vintage Computer PC Cards and Mainboards
1 electrolytic surface mount capacitor to be replaced, C8609 value 100uf at 4 volts, marked by sharpie. 1 cap added on regulator Q8654.
Assembled RAMPS-1.4 board based on the kit from UltiMachine. RAMPS is the RepRap Arduino Mega Pololu Shield -- in other words, it's an Arduino shield (mountable daughter board) that provides RepRap 3D printer electronics, see objects.reprap.org/wiki/RAMPS and objects.reprap.org/wiki/RAMPS1.4 for more details. This kit comes with the surface-mount devices pre-soldered. There are a lot of SMD components on this board, so this kit saved a lot of work versus a bare board.
One Pololu A4988 driver daughterboard was assembled at the same time, and is shown mounted on the RAMPS headers at the 5th position, or lower right. Full info on this driver board is available at its Pololu product page, www.pololu.com/catalog/product/1182 .
Note that Pololu driver daughterboards must be inserted into the RAMPS headers with correct orientation (the one shown here is oriented correctly), namely with their potentiometers on the side facing away from the RAMPS board's power and MOSFET terminals. If you insert them with the opposite orientation, instant destruction is assured on applying power.
FLC100 shield, with XRF radio module and shunts still to be fitted.
This board is a prototype version and so can be constructed and connected in several different ways. There are two possible possible regulator circuits. The XRF radio can be connected to either of two UARTs available on the Calunium board. There are three possible connections for the I2C interface: pins A4/A5 as used by the standard Arduino, pins 20/21 (as used by Calunium, the Arduino Mega I2C interface is in the same location), or connected to the new dedicated I2C pins found on the Arduino Uno v2).
The shield was designed to allow an FLC100 fluxgate magnetometer sensor to be mounted on this board or on an external sensor board. The fluxgate sensor and analogue to digital converter are normally remote. There is also an option to mount the ADC on this PCB and connect its inputs to a remote magnetometer sensor.
Advanced Neural Cell Stimulation of Multi Electrode Array - Cross Point switches, 16bit ADC, 16bit DAC, SD Card, Quad ASCII LED, Unloaded VNA and a plugable MEA 8x8 Array I/F