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Tire Pressure Sensor Code @projects:electronics:tirepressuresensor

74 Hits, Last modified: 11 years ago

8 if (i==4) movlw ' ' #ifdef LCD_PICDEM call XLCDPut #endif endif movlw '0' btfsc Fl... oc,(7-i),A i+=1 movlw '1' #ifdef LCD_PICDEM call XLCDPut #endif endw endm I2C_AckWait mac... endStart macro BSF SSPCON2,SEN ; Send Start call I2C_BusyWait endm I2C_SendStop macro BSF SSPCON2,PEN ; Send Stop call I2C_BusyWait endm #ifdef LCD_PICDEM ;The

SD GPS Track Logger

9 Hits, Last modified: 11 years ago

} {{:projects:electronics:sdgpslogger:sd_and_mmc_cards_pictail_daughter_board_info_sheet.pdf|SD and MMC Cards PICtail Daughter Board Info Sheet}} ^Function... a In| |SDO|O|RC7|SPI Data Out| |CD|I|RB4|Physical Card Insertion Detect Signal| |WD|I|RA4|Physical Wri... /miva/merchant.mvc?Screen=PROD&Product_Code=FF004&Category_Code=FF|uALFAT3]], $14 * [[http://www.spa

Magtek Card reader

6 Hits, Last modified: 11 years ago

====== Magtek Card reader ====== MAGTEK 21045002 MagStripe card reader. {{:projects:electronics:magtek-21045002.pdf|... Track, only reads Track 2 2.7 to 5.5VDC When no card is present all pins are high. When a card is present pin 5 goes low and remains that way for 140ms

DGPS-11 Beacon Receiver

4 Hits, Last modified: 11 years ago

Green|Data Ground| | Brown|Shield Ground| How can I tell if my WAAS GPS is giving me a corrected f... mers - [[http://www.abra-electronics.com/products/catalog/IF-Transformers-Micro-Miniature-p-4768.html|... eacon Transmitters ===== [[http://www.ccg-gcc.gc.ca/eng/CCG/DGPS_Home|Canadian Coast Guard]] [[http://www.navcen.uscg.gov/dgps/Default.htm|United States

Tire Pressure Sensor

4 Hits, Last modified: 11 years ago

D|0-101.5PSI Pressure sensor|[[http://www.digikey.ca/|Digikey]]|$16| | |2 Ft 1/4ID hose|Home Hardware|... ===== Here are the {{:projects:electronics:excel_calculations.pdf|calculations}} I did for the module using a spreadsheet to graph the transfer function, then working out the math to something which can be easily done in assembly. {{:projects:electro

MySensor board

3 Hits, Last modified: 9 years ago

SOT-23 3.3V voltage regulator. 0805 resistors and capacitors (Soldered on a thru-hole capacitor until the 0805 tantalums arrive) **Connections** * 1 x ... components before ordering board - 0805 Tantalum caps are pricey * Molex connectors slightly too cl

Panel Meter Interface

2 Hits, Last modified: 11 years ago

vlw 0xF0 movwf DAC,A movlw 0x00 movwf DAC+1,A CALL SPIclkout CALL Delay goto myloop ; ================= ; === Functions === ; ================= SPI

Serial Converter

2 Hits, Last modified: 11 years ago

l Converter ====== MAX233CPP * Uses no external caps ===== Cable Pinout ===== ^Pin ^Wire Colour ^Description ^ |1 |N/C | |2 |Black |RD (Data to PC) |

Sump pump Monitor

2 Hits, Last modified: 9 years ago

uld check the cistern level with a pressure gauge calibrated in inches of water. There was a rubber sq... ember this from a Better or Worse comic: [[http://catalog.fborfw.com/indexid.php?q=5623|How much sump

Barometric Pressure sensor

1 Hits, Last modified: 11 years ago

r)| |Blue|TX (Data to computer)| |Black|Gnd| ==== Calculations ==== http://www.chrisgood.com/uav/avio

Temperature sensing devices

1 Hits, Last modified: 11 years ago

|6|CT|n/c| |8|Vdd|Red| |7|Gnd|Black| Need 0.1uF Cap between pins 7 & 8 {{:projects:electronics:ad

Touch Sensor

1 Hits, Last modified: 11 years ago

Status: Prototype** {{youtube>large:LtHRDSMwfJU|Capacitance based light switch }} {{:projects:elect

X10 Interfacing

1 Hits, Last modified: 11 years ago

a transformer internally, with a rectifier and a capacitor. {{ :projects:electronics:x10:rj9_x10_tim