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Optical Mouse
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~~NOTOC~~ ====== Optical Mouse ====== {{ :projects:electronics:opticalmouse:opticalmouse.jpg?400|}} With this project I intend to use an optical mouse sensor chip for detecting movement on a
Tire Pressure Sensor Code @projects:electronics:tirepressuresensor
6 Hits, Last modified:
wise, RA8 ; #define I2C_7SEG ; If Defined, use I2C to control display #DEFINE ADRC0 b'' #D... ll I2C_BusyWait endm #ifdef LCD_PICDEM ;The user can declare different definitions and make neces... instant an interrupt occurs. ; We don't use the "FAST" option for the Low Priority ISR ; because if the High Priority interrupt is enabled and sho
Sump pump Monitor
4 Hits, Last modified:
nts have a cistern and a sump pump which would be useful to have some sort of water level monitoring. ... - Measures up to 5 metres (200 inches) of water (Used for the cistern) * MPX5010 - Measures up to 1 metre (40 inches) of water (Used for the sump) * 2 Optically isolated inputs, o... red when the sump pump turns on, the other is not used * 1-wire network for temperature sensors * T
DGPS-11 Beacon Receiver
3 Hits, Last modified:
herproof housing. ^ Wire ^ Function ^ | Red|+3A fused 10.8 to 31.2VDC| | Orange|RS-232C In| | White|RS... nsformers-Micro-Miniature-p-4768.html|Abra]] or Mouser * 42IF201 * 42IF203 * Chokes - Mouser only so far * 43LS103 {{:projects:electronics:d
SD GPS Track Logger
3 Hits, Last modified:
ics:sdgpslogger:picdem_fs_usb_demonstration_board_users_guide.pdf|}} Will be useful for future projects, however the included processor, the PIC18F4550 doe... gger/|GPS to SD-Card Data Logger]] - Does **not** use the FAT filesystem * [[http://www.k9spud.com/sd
7-segment display module
2 Hits, Last modified:
made this board using Eagle for layout and then I used [[http://www.batchpcb.com|BatchPCB]] to manufact... rrectly, however, if I were to revise it, I would use a larger SMT resistor than the 0402 size. The boa
IO Board
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round |B10^#|A10|I/O CH RDY|n/c| |B2 on U23 - not used|-SMEMW |B11^#|A11|AEN |Address enable; active high when DMA controls bus| |B1 on U23 - not used|-SMEMR |B12^#|A12|SA19 |n/c| |A3 on U23|-IOW |B1
X10 Interfacing
2 Hits, Last modified:
ems to die after a few years (on three units I've used) so I figured out the pinout. 4N35's are used internally for opto-isolation, The power is from a tran
Barometric Pressure sensor
1 Hits, Last modified:
ide0024.htm ---- ===== Op-Amp Circuit ===== * Use an LM358 Op-Amp * 80 to 110 kilopascals >> 3.12
GPS
1 Hits, Last modified:
8-pin header 0787connector, J3. The J3 connector uses 0.150 inch (3.8 mm) pins on 0.0787 inch (2 mm) s
Serial Converter
1 Hits, Last modified:
====== Serial Converter ====== MAX233CPP * Uses no external caps ===== Cable Pinout ===== ^Pin ^Wir
Tire Pressure Sensor
1 Hits, Last modified:
tead of the LCD display the finished project will use the [[7segdisplay]] to make it easier to read und