Posts from Spehro Pefhany in

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[AVR]: Static sensitive reset?  Dec 14th 1
[BUY]: LED sources...  Mar 11th 1
[BUY]: Coil winder  Aug 27th 1
[EE] : Design of single phase variable frequency d  Dec 6th 1 7th 228
[EE] How to fade a LED?  Sep 13th 1
[EE]: I am looking for UV sensor,  May 16th 1
[EE]: Adding Current and Thermal Limiters to Moto  Aug 7th 1 8th 81
[EE]: Choosing a schottky diode  Jul 31th 1
[EE]: Different backlight color on LCD?  Oct 7th 1
[EE]: Fluke meter LCD problem  Aug 10th 1 11th 28, 100
[EE]: Interesting LCD observation...  Aug 11th 1
[EE]: LCD operation Q's...  Oct 1st 1
[EE]: LED drivers?  Oct 4th 1
[EE]: metric Eagle question!  Dec 12th 1 13th 84
[EE]: Piezo buzzers having a bubble bath  Aug 3rd 1
[EE]: Pin Blockers?  Dec 9th 1 10th 52
[EE]: Simple switching question.  Aug 21th 1, 9, 30, 27
[EE]: Speeding up a relay - zero crossing detecti  Oct 29th 1, 13
[EE]: What's the purpose of a zero-ohm resistor?  Nov 23th 1, 31
[EE]: Working with or-cad layout.  Jul 2nd 1, -6814 3rd 24
[EE]: "digital" knobs/buttons  Jun 26th 1
[EE]: [OT]: Black Tar protecting chips  Sep 11th 1
[EE]: [PIC]: How to have a private labeled chip ?  Jun 14th 1
[EE]: 0805 underpass, handsoldering  Feb 15th 1, 2
[EE]: 1:1 Transformer...  Dec 9th 1
[EE]: 16F84 Datalogger - current consumption  Feb 7th 1
[EE]: 1N4148 as temp probe?  May 22th 1
[EE]: 220v Isolated transformer  Dec 6th 1, 25
[EE]: 2-tran boost circuit; 5v -> 13v  Dec 9th 1
[EE]: 3D PCB board  May 16th 1 17th 167
[EE]: 5w 220 electric bulb behave as a LED, HOW?  Feb 16th 1
[EE]: 5x7 LCD font for manual?  Dec 2nd 1
[EE]: 7805 regulator current increase  Jul 13th 1 15th 153
[EE]: acos function  Mar 26th 1 27th 83
[EE]: Air core meter movement suppliers?  Feb 7th 1
[EE]: Anyone dealt with Custom PCB?  Aug 13th 1, 0
[EE]: Are cooking fumes corrosive?  Jul 17th 1 18th 154
[EE]: AUVic needs help from EE with Motor Control  Sep 8th 1 9th 95
[EE]: Best DSP solution available now (well, soon)  Aug 13th 1
[EE]: Build you own LCD projector?  Apr 12th 1
[EE]: Can you parallel FETs?  Aug 23th 1
[EE]: Cheap Person Sensor  Mar 14th 1
[EE]: Cheapest micro or PIC with 10-bit A/D  Feb 25th 1
[EE]: circuit analysis  Feb 15th 1
[EE]: Comments wanted on PCB prototyping idea.  Dec 9th 1, 13
[EE]: Crowbar protection  Aug 26th 1
[EE]: DC motor control  Aug 26th 1, 12, 59
[EE]: DIP package trouble  Jul 19th 1
[EE]: Dual Brightness LED  Mar 7th 1
[EE]: Fast Diode/rectifier  Jul 14th 1
[EE]: FAST Low-Cost Programmer for 24LC256 I2C EEP  Dec 19th 1
[EE]: Female headers?  Apr 12th 1
[EE]: FET Relay drivers and Catch Diodes (Found it  Feb 28th 1
[EE]: How to measure low cap (120pF)  Apr 2nd 1 3rd 106, 76
[EE]: I just post to say I love List.  Dec 26th 1
[EE]: IEC-60745 & circuit boards  Nov 19th 1, 7
[EE]: interfacing a a relay (automotive world)  Jun 17th 1, -5660 18th 110
[EE]: Large 7-seg displays  Feb 14th 1
[EE]: LED Transistor and resistor selection?  Jul 10th 1
[EE]: Letter Patterns for 7 Segment LEDs?  Nov 20th 1, 33
[EE]: Looking for red-filtered plastic/plexi...  Feb 25th 1
[EE]: low cost PCB prototyping milling machine  Jun 27th 1 28th 6467, 6474
[EE]: Low current RS485 drivers  Mar 8th 1
[EE]: low voltage AC following PWM  Nov 27th 1
[EE]: Making quality printed circuit boards  Dec 15th 1
[EE]: MOSFETS  Jul 18th 1, 2
[EE]: Motor speed sensing  Sep 4th 1
[EE]: MOV PCB layout  Nov 26th 1
[EE]: open-loop solenoid driving...  Dec 6th 1
[EE]: PCB layout tools considerations.  Nov 27th 1
[EE]: Phase failiure Detection in 3 Phase  Jan 31th 1
[EE]: Plated thru holes  Dec 15th 1
[ee]: power reg questions  Dec 29th 1
[EE]: Printer to PCB? - HP7475A  Nov 26th 1
[EE]: Protecting Against Hooking Up a Battery in R  Oct 6th 1
[EE]: protecting parallel port  Feb 20th 1
[EE]: Pushing LEDs to the limit  Dec 27th 1, 4, 6 30th 158
[EE]: Questions about fuses  Jan 29th 1
[EE]: quick'n'dirty positive to negative convertor  Feb 6th 1
[ee]: random input required  Apr 18th 1
[EE]: RC time constant (was: [PIC]: Using PWM to v  Mar 16th 1
[EE]: RC toy encoding  Jul 15th 1
[EE]: Rs232 - RS485 converter circuit  Nov 21th 1, 0
[EE]: RS232 <-> 20mA current loop designs  Nov 19th 1 20th 92
[EE]: Shift+latch+driver  Mar 7th 1
[EE]: Shunt  Dec 9th 1 10th 75
[EE]: Silver Oxide / Lithium Battery (Made In H.K.  Oct 5th 1
[EE]: Single Sided Boards - How do you do it?  Nov 24th 1
[EE]: Solenoid information  Dec 21th 1
[EE]: stepper "digital" knob viability  Jun 28th 1, -4 29th 69
[EE]: Switching low-voltage AC  Feb 18th 1, -1, -265, 22, 62, 95 24th 620
[EE]: Symbol/proper definition for mAh  Dec 19th 1, 2, 22 20th 123
[EE]: The joys of electronics  Aug 26th 1
[EE]: time delay for AC motor start  Sep 30th 1
[EE]: tri-state interface to 12vdc CMOS logic  Feb 25th 1, 16
[EE]: Understanding Terminal Block Ratings  Sep 2nd 1
[EE]: Unused pins on a CMOS OpAmp?  Mar 1st 1
[EE]: Unused pins on a comparator  Mar 3rd 1, 11
[EE]: Variable Frequency Drive "VFD" for 3-phase m  May 22th 1
[EE]: Wanted - digital camera "USB drive" reader  Dec 3rd 1
[EE]: was Re: CFM calc. from pressure drop?  Oct 1st 1
[EE]: What about 115 AC fan control? Was: Thanks D  Mar 11th 1
[EE]: What thickness PCB? & cutting?  Nov 12th 1
[EE]: Where to get 28 pin DIP connector (IDC)  Mar 8th 1
[EE]:High power DC switching..  Apr 14th 1
[EE]:Is this true or is it Bull .... !!  Aug 7th 1 8th 51
[EE]:Maintaining electrolytic capacitor  Dec 17th 1, 91 18th 153
[EE]:Maxim 472 / 4377 Current sense amps  Nov 21th 1
[EE]:Measure liquids temperature with 18S20  Aug 13th 1
[EE]:Measure liquids temperature with 18S20  Aug 14th 1, 4, 22, 24
[EE]:Oscilloscope  Feb 6th 1, 44 7th 26
[EE]:Pressure sensor confusion  Nov 18th 1, 14
[EE]:Question about L7805 Voltage regulator  Nov 11th 1
[EE]:Rectify  Oct 28th 1
[EE]:Right Angle D Sub Connector and Breadboard  Mar 7th 1
[EE]:surge suppressing (MOV)  Sep 9th 1 10th 22
[EE]:Turn off 3 pin regulator?  Jan 31th 1, 16
[EE]Re: Software engineer was: (no subject)  Sep 13th 1
[OT:] Resistor color codes (was Job Interviews)  Apr 27th 1
[OT] Digikey, an ISO-9002 company.  Nov 11th 1
[OT] Solder LEAD poisoning - an ALERT ?  Dec 13th 1
[OT] :Old (ancient) message scrolling  Mar 1st 1
[OT] Cutouts for LCD Displays  Dec 12th 1, 7
[OT] Space fans  Dec 30th 1
[OT]: (Report of) GPS anomalies  Nov 20th 1
[OT]: Big problem!  Mar 16th 1
[OT]: How to print Windows directory info  Aug 8th 1
[OT]: oxy-hyd welder  Jun 26th 1
[OT]: RE: [EE]: Fuel tank sensor / real world sol  Jun 25th 1 26th 114
[OT]: UK v. US English (was My gratitude to all..  Mar 19th 1
[OT]: Win98 questions  May 24th 1
[OT]: 8- vs 12-bit A/D advantages  Jan 31th 1
[OT]: ACAD/IGES translation  Feb 13th 1
[OT]: Air car  Aug 27th 1, 0
[OT]: Arctic to lose all summer ice by 2100  Dec 4th 1
[OT]: Argh! (feel free to ignore)  Aug 2nd 1 3rd 143
[OT]: Beware of "Netzany"!  May 8th 1, 47
[OT]: Black Tar protecting chips  Sep 11th 1
[OT]: custom plastic enclosures (was: [EE]: Your t  May 9th 1
[OT]: Cutting acrylic/lexan/plexiglass  May 14th 1
[OT]: Damaged screen coating  Mar 4th 1
[OT]: drilling holes with no bit  Aug 28th 1
[OT]: DTV penetration. Anyone here watching?  Dec 31th 1
[OT]: Erosion cutting, was Argh! (feel free to ign  Aug 2nd 1
[OT]: Flying Quantas  Feb 13th 1 14th 156, 180
[OT]: Gas & taxes (was Online electronics store)  Aug 26th 1 27th 62
[OT]: Happy birthday USA  Jul 6th 1
[OT]: Hard Drive Crash Recovery  Feb 25th 1
[OT]: Hydrogen Powered Cars  Jul 18th 1 21th 349
[OT]: IC packages  Mar 11th 1, -4
[OT]: It works!  Aug 15th 1 16th 47
[OT]: Job Interviews  Apr 24th 1, 25
[OT]: Leveling surface  Aug 12th 1
[OT]: Mchip website down ? (2008 SAT 30 NOV 2002 U  Nov 30th 1
[OT]: Need ideas for supply for 90V motor drive...  Nov 21th 1 22th 113
[OT]: Nitron Kit  Oct 28th 1
[OT]: Northern Italy- anything do to?  Sep 12th 1, 70
[OT]: Other Microcontrollers  Jul 21th 1, 58
[OT]: Physics Help - Force exerted by 1HP motor  Feb 25th 1
[OT]: Piclist Beginners Kit (PBK) - Round 2  Aug 12th 1
[OT]: Press-n-Peel (New Question)  Nov 22th 1
[OT]: Press-n-Peel PCB Transfer Film  Nov 21th 1
[OT]: re: Making PCBs...  Mar 13th 1
[OT]: Re: POMS  Feb 13th 1
[OT]: reply address  Aug 15th 1
[OT]: Shipping PIC products from US abroad?  Jun 22th 1
[OT]: Software Protection  May 9th 1
[OT]: Soldering pin headers  Aug 8th 1
[OT]: source for cheap strain guages?  Mar 15th 1
[OT]: Specific email client ?  Mar 1st 1
[OT]: Standard contract for work?  Nov 14th 1
[OT]: strcat in c language. Please help!  Mar 8th 1
[OT]: suspended from paypal  Aug 23th 1
[OT]: taxes  Aug 24th 1
[OT]: taxes was Re: [EE]: Online electronics store  Aug 23th 1
[OT]: Tektronics 475A Repair Manual/Tips (no horiz  Feb 10th 1, 7, 46
[OT]: Temperature Sensors?  Dec 1st 1, 18
[OT]: Unfortunate names (was Effective resistance)  Jul 28th 1
[OT]: US and Metric System: UK viewpoint  Mar 8th 1
[OT]: US telephone prefix locator  Nov 25th 1, 36, 64
[OT]: Useless Technology?  Dec 1st 1
[OT]: was Re: [PIC]: Anybody running MPLAB on XP?  Mar 11th 1
[OT]: was Re: [PIC]: The PICLIST Development Proje  Aug 17th 1
[OT]: What Test Gear to measure xtal frequency to  Aug 12th 1, 76
[ot]: what's the difference between absolute and  Dec 19th 1 20th 25
[OT]: Win XP DOS screen capture  Nov 13th 1
[OT]:20ish led lamp  Jul 16th 1, 30
[OT]:50 HZ sine wave from pic 16F84  Aug 12th 1
[OT]:Casting plastics?  Mar 28th 1
[OT]:PCB Cutting ?  Feb 12th 1
[OT]:Question regarding thru-hole pads.  May 12th 1
[OT]:Rectify  Oct 28th 1
[OT]:tool help!  Feb 25th 1
[OT]:Whatever Next?  Aug 19th 1, 29
[PIC:] Suggested circuit for ICD2 Support?  Aug 6th 1
[PIC] : LCD connected to PIC16F84 using PICBASIC P  Apr 4th 1
[PIC] fixed point to ASCII on 16F87x?  Dec 31th 1
[PIC] How to detect if an input pin gets stuck  Aug 6th 1
[PIC] How to do CRC on the ROM?  Aug 12th 1, 8
[PIC] Re: PIC16F877 & USART  Dec 29th 1
[PIC]: Automatic bulk programmer  Jul 22th 1 24th 257
[PIC]: Cheap easy small ram  Jul 5th 1
[PIC]: From 16F84 to 12F629  Dec 24th 1
[PIC]: how about a 3-pin PIC chip??  Aug 15th 1
[PIC]: My gratitude to all... Newbie is progressi  Mar 18th 1 19th 71
[PIC]: On the subject of LED drivers...  May 19th 1, 737
[PIC]: SPI protocol  Nov 28th 1
[PIC]: Weekend project (Linux Hex-file utility)?  Mar 14th 1 15th 50
[PIC]: Which PIC should I use?  Dec 10th 1 16th 520
[PIC]: .1uf between Vcc and gnd ???  Jul 5th 1 6th -7350, 102 8th -7761
[PIC]: 16c745 with usb sample code doesnt work. dr  Mar 18th 1
[PIC]: 16F873/877/18F452 programming times?  Jul 11th 1
[PIC]: 16F877 PORTD Can't run 8 LEDs simultaneousl  Mar 10th 1
[PIC]: 16F877 same pins for LEDs and buttons  Jul 11th 1
[PIC]: 17 series.  Jan 31th 1
[PIC]: 18 series vs. 16 series  Dec 6th 1
[PIC]: 18F with CAN at Digi-Key  Sep 12th 1
[PIC]: 18F452 internal BOR or BOR + MCP809 ?  Aug 26th 1
[PIC]: 2 oscillators in one pic ?  Mar 17th 1
[PIC]: 64 bit FP math  Dec 26th 1
[PIC]: A/D input impedance > 10K  Feb 20th 1
[PIC]: A/D reference and questions  Nov 25th 1
[PIC]: AC mains into PIC pin  Nov 7th 1, -1
[PIC]: AD reading problems 16f877  Aug 24th 1
[PIC]: Anyone succeeded to do I2C with PIC17C7XX a  Mar 6th 1
[PIC]: Assembler Errors  Aug 22th 1
[PIC]: BCD time-of-day addition  Oct 6th 1, 6
[PIC]: Beginner Q. How many K-type thermocouples c  Mar 4th 1
[PIC]: Best way to get lower and higher bytes of a  Mar 13th 1
[PIC]: Bitscope  Feb 13th 1
[PIC]: Bulk Erase  Dec 20th 1
[PIC]: can u identify the chip?  Nov 17th 1, 14
[pic]: Can you amplify with a single 2n2222 ??  Feb 10th 1 13th 282, 297
[PIC]: cap sizes to use with 20Mhz Crystal  Apr 14th 1, 34 15th 83
[PIC]: ceramic resonators - where?  Feb 17th 1
[PIC]: Clock accuracy  Nov 27th 1, 8
[PIC]: clone  Dec 27th 1, 3
[PIC]: coding style  Jun 20th 1 21th 5825
[PIC]: Compatibility 16F76 and 16F876?  Sep 13th 1
[PIC]: Data Logging using a 16F877  Nov 23th 1
[PIC]: Direct LED connection?  Nov 1st 1
[PIC]: displaying a value on LCD  Mar 19th 1
[PIC]: Divide 24/8 routine  Dec 21th 1
[PIC]: Do I need pull-up resistors on PortA of a 1  Jan 29th 1
[PIC]: Double side PCB - Again...  May 13th 1
[PIC]: Driving 2 x 7-Segment with just one port  Mar 3rd 1, 15, 33, -5076
[PIC]: driving 8 x 128 general LED as matrix displ  Feb 3rd 1, 133, 125, 50
[PIC]: Driving a dual LED  Feb 2nd 1
[PIC]: EEPROM <-> PIC  Feb 23th 1
[PIC]: ER mode PIC16F628  Dec 2nd 1, 37, 52
[PIC]: favorite anti-blowup strategies  Nov 18th 1
[PIC]: Fill Unused Memory with GOTO xxxx  Dec 8th 1, 42, -28
[PIC]: First pic project  Aug 21th 1
[PIC]: Getting signal safely from fuel injector  Nov 1st 1 2nd 139
[PIC]: Hitachi LCD controller HD44100 info sought  Mar 19th 1
[PIC]: How to obtain the official US time clock?  Dec 17th 1
[PIC]: how to tie two lines togeather  Jan 31th 1
[PIC]: HS (Crystal) oscillator without caps?  Nov 28th 1
[PIC]: I eat a PIC. dsPIC ready in 2004? NO Hoax!  Dec 16th 1
[PIC]: Interfacing PICs to el cheapo GSM phones  Dec 19th 1
[PIC]: Interrupt Enable Flags - quick question  Aug 27th 1
[PIC]: logic gate speeds  Feb 18th 1
[PIC]: Looking for PID control routine  Mar 13th 1
[PIC]: Masters Conference in July  Jun 13th 1 14th 32
[PIC]: Masters, anyone?  Jul 15th 1, 19
[PIC]: MPLAB C18  Aug 14th 1
[PIC]: MPSIM 8.10 (6.10.00 version) vs. 7.70.40  Dec 8th 1
[PIC]: News!! MPLAB 6  Apr 30th 1
[PIC]: nF vs. 1000pF  Mar 19th 1
[PIC]: Odd Programming Behavior: PICSTART Plus & P  Aug 6th 1
[PIC]: PIC crystal...  Mar 12th 1
[PIC]: PIC heating up  Mar 9th 1, 5
[PIC]: PIC interface to Polaroid sonar  Mar 17th 1
[PIC]: pic or 8051  Jan 29th 1
[PIC]: PIC14000 ADC Problems  Oct 7th 1
[PIC]: PIC14000 Do It Yourself Programmer  Jun 5th 1
[PIC]: PIC16C628 ER mode  Dec 5th 1
[PIC]: PIC16C771 INTRC "calibration"  Aug 25th 1
[PIC]: Piclist Beginners Kit (PBK)  Aug 5th 1, 36, 54
[PIC]: Piclist Beginners Kit (PBK) - Round 2  Aug 9th 1
[PIC]: Picstart Plus and 16F87xA devices  Dec 26th 1, 25
[PIC]: PID Controller For 1Gallon Fish Controller  Jun 5th 1
[PIC]: planning an AC motor control with PWM outpu  Jan 31th 1
[PIC]: problems with 12c508  Nov 20th 1
[PIC]: Real newbie question on ADC  Aug 17th 1
[PIC]: Reset circuits  Aug 15th 1, 25
[PIC]: Robot Motor Controller  Feb 8th 1
[PIC]: Serial Output with Hi Tec C  Aug 3rd 1
[PIC]: Serial resistor for the oscillator of a PIC  Jul 11th 1
[PIC]: Source for Optical Encoder Disc  Sep 2nd 1
[PIC]: Supply 3.3V to PIC16F876 @ 4Mhz  Jun 14th 1
[PIC]: The PICLIST Development Project: Concession  Aug 29th 1
[PIC]: Tine challendge shortest X -> 2X + 1  Jun 3rd 1
[PIC]: Transistors for pocket programmer.  Feb 20th 1, 27
[PIC]: UL 1998 requirements  Mar 6th 1, 42, 102 7th 245
[PIC]: USB interface chip experience?  Dec 21th 1
[PIC]: use VCC for crystal bypass caps?  Oct 3rd 1, 80
[PIC]: Using 2 outputs in parallel for higher curr  Nov 9th 1
[PIC]: using IR to measure temperature?  Oct 28th 1
[PIC]: Using PWM to vary LCD contrast?  Mar 15th 1, 96
[PIC]: W7758  Jan 30th 1
[PIC]: What's "instruction set test"?  Aug 20th 1, 42
[PIC]: Whats the easiest way to perform a btfss PO  Feb 22th 1
[PIC]: What's the real deal with code protection?  Mar 18th 1, -9, -16
[PIC]: Xrays and Flash memory  Apr 24th 1
[PIC]: Yes this really is a PIC question  Sep 13th 1
[pic]:12C508 timer  Nov 26th 1
[PIC]:16F877 and LCD  Jan 31th 1, -46
[PIC]:c interrupts  Apr 18th 1
[PIC]:Has any one ever got a PIC 18F244 chip to wo  Aug 4th 1
[PIC]:Hitec C W 17C processor Context saves  Apr 2nd 1
[PIC]:PIC vs. PLC  Mar 5th 1
[PIC]:Reading Flash  Jul 17th 1
[PIC]:simulating delay routine in mplab  Feb 7th 1
[PIC]:String Copy in ASM  Dec 11th 1
[PIC]:USART receiving data  Feb 25th 1
[PIC]:working out percentages  Feb 21th 1, 18
[PIC} Can the PicStart+ read/program a 1702 EEPRO  Aug 3rd 1
[PICLIST] [EE] Controlling Split Phase Motor  Mar 1st 1, -38
[PICLIST] [EE] power supply heat  Jun 19th 1
[PICLIST] [EE] TO-220 heatsinking  Feb 14th 1 15th 2933
[PICLIST] [EE] Triacs and AC power  Apr 12th 1, -400
[PICLIST] [EE] What is "ratiometric"  Mar 8th 1, 20
[PICLIST] [OT] Embedded Thermal sensing  May 9th 1
[PICLIST] [OT]Rocket men  Mar 5th 1
[PICLIST] [PIC] kill a PIC  Feb 24th 1 25th -4333, 28
[PICLIST] [pic] Math Question - Measuring AC Volta  Feb 27th 1, -9, 17
[PICLIST] [PIC] Number representation  Mar 13th 1, 70, 100
[PICLIST] [PIC}: I2C Questions  Feb 27th 1
[PICLIST] {EE}: Filtering Caps -- a complete myste  Mar 5th 1, 25
[PICLIST] 16f628 and i2c; 16f628 with internal osc  Jul 3rd 1
[PICLIST] Air core meter movement suppliers?  Feb 7th 1
[PICLIST] Antwort: [PIC]: cheapest way for adding  Jun 20th 1
[PICLIST] DIY compiler  Mar 8th 1
[PICLIST] Dual Brightness LED  Mar 6th 1
[PICLIST] EEPROM <-> PIC  Feb 25th 1
[PICLIST] How to allocate variables in Assembly (  May 5th 1
[PICLIST] I2C and 2-wire  Mar 3rd 1
[PICLIST] Making PCBs...  Mar 8th 1
[PICLIST] Nice power factor meter  May 11th 1 12th 6, 32
[PICLIST] solving equations  Feb 13th 1
[PICLIST] SV: [EE]: Which FETs?  Feb 15th 1
[PICLIST] UM91531 info  Feb 13th 1
18F010 and 18F020 ???  Dec 4th 1
EEPROM endurance  Dec 7th 1
OT:Was Re: PIC  Jul 19th 1 21th 185
PIC & Pt100... Calibrate? (Resending)  Aug 15th 1
power reg questions  Dec 29th 1
Protecting Against Hooking Up a Battery in Revers  Oct 5th 1
Replacement for PIC16F84A ?  Sep 12th 1 13th 110
Sin and cos maths funtion on PIC(AN660 )  Nov 26th 1, 10
Test for OverFlow in 2' complement systems  Nov 20th 1
Weight sensors  Dec 22th 1, -52

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