Questa è una vecchia versione del documento!
Indice
Papers & notes concerning electronics
Papers
- [Datasheets directory](http://boris.maetech.it/docs/datasheets/)
- Slides [“elettronica open source - microcontrollers”](http://boris.maetech.it/docs/papers/opensourceelectronics-microcontrollers.pdf) : overview sui microcontroller, utilizzate in occasione del Linux Day 2011 a Pordenone
- Cable designations standards also pdf version
External Links
Bit manipulating hacks
Nuova Elettronica
Beautiful electronic project - The Bulbdial clock
Using CDs to measure laser wavelenght
SMD Fuses Letter to Value Chart
B = 0.125 C = 0.2 D = 0.25A E = 0.375A F = 0.5A X = 0.68A G = 0.75A H = 1.0A J = 1.25A K = 1.5A L = 1.75A N = 2.0A O = 2.5A P = 3.0A R = 3.5A S = 4.0A T = 5.0A
(thanks to Carlo Pollice)
D-Sub connectors
Lamp sockets
- GY socket, one pin is bigger than the other, used for MSD discharge lamps.
- GX socket, both pins same thickness, used for PC-proj's 1000W lamps.
Pinouts & Wirings
DUCATO LAMPADA VANO MERCE
Red/blue = +12V (subject to timeout) Green/black = 0V door switch Black = 0V
+---------------------+ conn. | | | | | | +-----(X)----+---/--+ switch 1 | | +--+ | lamp | | +------+ +---/--+ switch 2 | | +----------------------------+
Spencer Resusci Power Plug
The socket used is an XLR
Pin 1 = +12V
Pin 2 = GND
Nellcor(r)/Sunrom pulsioximetry sensor
numbers refer to DB9 connector pins IR led 2 --------+-----|>|------+-------- 3 |-----|<|------| RED led photodiode 5 -------------|>|---------------- 9 7 -------( cable main shield ) 6.0K-9.7K 6 -------+-------/\/\/\/\---------- 1 | |-------( sensor shield )
Symbol LS2106 barcode scanner ps/2 wiring / pinout
To scanner | PS/2 | |||||
---|---|---|---|---|---|---|
Rj45 pin | wire colour | header pin | function | IDC pin | wire col | din pin |
orange | 1 | data out | 2 | red | 1 (male) | |
red | 2 | +5 Vcc | 4 | green | 4 (male) | |
13 | purple | 4 (female) | ||||
yellow | 3 | ground | 3 | orange | 3 (male) | |
10 | orange | 3 (female) | ||||
green | 4 | clock in | 5 | purple | 5 (male) | |
brown | 5 | clock out | 12 | green | 5 (female) | |
purple | 6 | data in | 14 | red | 1 (female) | |
NC | - | - | shield | 6 | shield | shield |
Note: Male ps/2 to PC, female PS/2 to keyboard (optional)
Note: +5Vcc line interrupted by external adaptor plug: if plug is inserted, ps/2 vcc is disconnected and external + goes to scanner
Urmet domus power supply and peripherals
External station (portiere elettrico):
- 1 don't know, maybe not amplified output
- 1A amplified microphone output
- 2 input
- -/+ audio power supply
- L should be LED
- G/T pushbuttons common
- Ux pushbuttons
Power supply module (786/15)
- PS(2) Tone generator output
- C(2)/SN(2) Current sensing circuit (to make relay trip)
- +/- Audio power supply
- -J Amplified output for intercommunicating circuit (audio is revealed from “+” !)
- Relay contacts:
- 2,5,8 common
- 1,4,7 normally open
- 3,6,9 normally closed
- C1-SN1 makes relay trip to NO, C2-SN2 makes relay relax to NC
IBM 4820 Touch monitor (ELO 4500U)
Connector marked as “4” is USB device (input), optionally plus power.
P/N 14J0930, 14J0624 — FRU/SMU 42M5673, 42M5671
Referring to the image, pin 2 is D-, pin 3 is D+, pin 4&5 are GND.
A guide says pin 1 should be 5V input and pin 6 12V input, but I am not convinced about this.
AVR simple programmers
mcu DAPA STK200=ponyprog DASA (serial) VCC 3 - RST 16 9 7 (4.7k res. series + 5.1 zener diode to gnd) SCK 1 6 (opt. 1k r) 4 (4.7k res. series + 5.1 zener diode to gnd) MOSI 2 7 (opt. 1k r) 3 (4.7k res. series + 5.1 zener diode to gnd) MISO 11 10 8 (no add'l comp)
Cisco rj45 rs232 terminal console
RJ45 male (cisco) DB9 female (PC) RJ45 DB9 - 1 3 2 6 3 7 4 4+5 5 2 6 8 7 1 8 - 9 ________ / /| |||||||| | 1 8 contact view (hook is behind)
APC Smart UPS communcation rs232 cable
Dumb segnalling UPS DB9 PC DB9 4 5 2 8 1 4 5 1 8--10k--1 Smart cable UPS DB9 PC DB9 2 2 1 3 9 5 a version says 1+2 7+8 another says 1+4 7+8 Terminal is 2400:8n1
Sharp LCD module 1x16 alpha chars (taken from a laser printer)
pin funct 1+2 gnd 3 led buffer enable #g1 5 44780 enable 6 44780 r/w 15 vcc 16 gnd 17 44780 rs + led buffer clock 18 db4 19 db5 20 db6 21 db7
Chinese PL-2303 USB to ttl serial interface
|^^^^^^^^^^^^^^^^^^^^^^| ^^^^^| o | <--- 3.3V out | component oo | <--- GND usb | side oo | <--- RX (from ext.device to the pc ) A | oo | <--- TX (from the pc to the ext.device) _____| o | <--- 5V out |______________________|
Professional 4-pin-XLR headsets
used for intercoms, etc.. 4 pin XLR : 1. MIC GND - 2. MIC SIGNAL - 3. EARPHONES GND - 4. EARPHONES SIGNAL