Hi This is the general principle of UWB: http://www.asahi-net.or.jp/~ny3k-kbys/contents/uwb_technology.html * * I also got some clues from section 3 of this document: http://www.kuroda.elec.keio.ac.jp/pdf/kuroda/2003/2003_19.pdf I hope this is what you need. Mark On 1/28/06, Shawn Wilton wrote: > > You have any more details regarding this UWB transmitter? > > On 1/28/06, Mark Jeronimus wrote: > > > > Hi > > > > This PIC is very useful for miniaturization. > > > > I plan to using the 10F203 in a datalogger. With a sensor (LDR or > > something), a 24AA512 serial EEPROM and 3 contact points for download > > (could > > use IR too). On the computer I could fit the whole circuit on a 5x8mm > > single > > sided board with a wristwatch battery on the bottom. While I was busy > > perfecting the design, another idea was presented to me which I am now > > researching, that is transmitting the sensor values using an Ultra Wide > > Band > > transmitter. It should not take a lot of space since there's no need for > > external transmitter circuitry. I am a little concerneed about the > > transmission range though. > > > > Mark > > > > On 1/27/06, Harold Hallikainen wrote: > > > > > > I just finished a little project with the 10f200. It reads a rotary > > > encoder and generates up or down pulses to drive the volume control > > inputs > > > (which were designed to accept switch closures to ground) on a cinema > > > sound processor. It worked out great! > > > > > > As mentioned by others, ICSP and in circuit debugging can be > > interesting. > > > I did debug using the simulator and staring a code, modifying > something, > > > programming the chip again, etc. ("crash and burn" debuggin). ICSP > > didn't > > > turn out to be an issue here since the encoder detents to open > circuit. > > > The other PIC pins are outputs that leave the boards, so if the board > is > > > standing alone, the pins are available for ICSP. > > > > > > In this application, I wanted open drain outputs so multiple devices > > could > > > be on the same set of control lines. So, instead of pulsing the PORT > > > register, I set it low and pulsed the TRIS bits. The outputs went from > > > open circuit (TRIS=1) to low (TRIS=0). > > > > > > Anyway, that was my first try at using the 10F200. It worked out > great! > > > > > > Harold > > > > > > > > > -- > > > FCC Rules Updated Daily at http://www.hallikainen.com > > > -- > > > http://www.piclist.com PIC/SX FAQ & list archive > > > View/change your membership options at > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > -- > > http://www.piclist.com PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > -- > > > Shawn Wilton (b9 Systems) > http://black9.com > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist