.. difficult to build but the pen may be built in any number of ways as long as a couple of critical requirements are met. The wire probe sticking into the ion chamber must not touch anything that is ever-so-slightly conductive, not even most ...
.. proven to work) cross-point screwdriver soldering iron tin-lead solder rosin or flux sharp knife 2 cm of thin insulated wire (2 pcs) (only if necessary) 1. Disassemble the mouse. Now you can see the three switches that make more than 90 % ...
.. the one on the left should have its positive side up. You can't see from this image, but you also need to solder a piece of wire between the two battery contacts on the opposite side of the board as well. The PIC is soldered to the PCB on the ...
.. homemade speaker using a plastic cup, business card, wire, magnet and some Lego blocks. I built this speaker from scratch; I was surprised of the quality of the sound. I ...
.. the battery's charge capability, you can send the data to a host processor or another destination through a single-wire interface, SPI, I2C, CAN (controller-area-network), or another industry-standard method. To maximize battery ...
.. size to bring new look to an old device. For this job you'll need piece of transparent plastic, LEDs, resistors and some wire plus good set of different tools and couple of straight hands ;-) LCD consists of PCB, metal frame and liquid ...
.. via the USB port. If you are doing so, +5V and GND to the backlight can be taken from the AVR ISP connector. Just connect a wire from the ISP connector to JP1 (the backlight supply connector). If you are using an external supply for your ...
.. sensor DS18B20 in a socket for testing purposes, it is also possible to connect the sensor at a distance by adding wire (I haven't tested 1 wire sensors at a distance yet). Schematic - PCB pcb elements/components Contrast ...
.. a lip around them, as this will hide an oversize or roughly-cut hole in either the plastic box or the transparency. Now you wire up your components / circuitry etc. Can't tell you how to do this, as it will depend on what you're building! ...
.. vital for the best results. It's very easy to make a housing, just use 2 encaps and a piece of pipe with a slot for the USB wire. It can all be glued or taped together. On the pictures, you can see the various stages of assembly. One endcap ...