The arrangement of pins and their functions on a device

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21 views

Is the PWM rail of a 4pin pwm Computer fan Positive or negative

I am wiring a 4 pin computer fan to a 12v dc power source and I am wondering the pin for the PWM is positive or negative.
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0answers
35 views

Verifying Pin In/Out Connections

I'd like to verify that what I'm planning to do will work before purchasing a preamplifier. I want to bypass the need for a case to interface with the preamplifier and want to just solder to the ...
0
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2answers
232 views

Pinout of microwave motion sensor FC1816

Please, help to figure out the pinout of microwave motion sensor FC1816. The seller "doesn't understand" what it is required on queries to provide the pinout for the module. The module is the ...
0
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2answers
77 views

Maxim/Microchip (can't tell) IC Identification

Part No. is 024 134A. Says Japan M5 on the bottom, visible through a hole in the PCB, not pictured. It is a memory lockout chip for Gameboy, it disables the SRAM when the Gameboy is powered down. I'm ...
4
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1answer
131 views

Find a Microcontroller from its PIN Layout

There's some service where one can search for a microcontroller from its PIN layout? There's a remote control that doesn't work and I would like to find information about its microcontroller. I'm not ...
0
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0answers
59 views

LCD pixels fading

I am trying to run a LCD off a raspberry Pi. I am powering both the backlight and the LCD with 5V. Although the screen will brighten up nicely when I turn it on, I notice however that the pixels ...
6
votes
1answer
268 views

Why transistor pin outs are not standardized?

I was replacing a BC548 with a BC639 without paying too much attention to datasheet details except the current rating. Obviously the circuit did not work too well until I checked the correct pins. Is ...
0
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1answer
37 views

AR Parrot navigation board pinout

Does anyone know which pins do what on the AR Parrots navigation board?
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3answers
87 views

What does “No Pin” mean in IC pinout?

Logically i understand that 'No Pin' literally means that there is no physical pin but i would prefer to hear a conformation of this fact by those who has encountered such situation. The thing is ...
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2answers
71 views

Powering a 6-Pin DAC-08B035 LCD Inverter

i have an old LCD Panel(N141X6 -L01) from a Fujitsu Siemens laptop and an inverter(DAC-08B035) for it. Before connecting the whole thing to a raspberry pi(and buying the necessary controller board), I ...
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1answer
142 views

BEC or CEB NPN Transistor [closed]

I am looking for a small, inexpensive NPN transistor, similar to 2N4401 in specs, with a BEC or CEB pinout. Does anyone know of any?
5
votes
4answers
413 views

What does NC mean in this pinout diagram for an ESP8266?

The ESP8266 Datasheet has a Pin 5 labelled as VDD_RTC and it describes its function as "NC (1.1V)". I usually understand NC to mean no connection on most ICs, or on relays as normally closed. Neither ...
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2answers
233 views

Is it possible to program the Teensy3.0/3.1/3.2 in C?

I need to program my Teensy3.2 (hasn't arrived yet) in C. Looking at the Teensy pinouts page, the last board for which pinouts for C language are given is the Teensy++ 2.0. Is it still possible to ...
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1answer
75 views

Sensor has interrupt pins. What can I connect them to?

I have a BMI055 gyroscope and accelerometer. on the sheet there is a section dedicated to the 4 interrupt pins (16,1,12,13 respective to 1,2,3, and 4). This section starts on page 30. and it seems ...
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2answers
142 views

Is it possible to remap/change the pins of an IC?

I was wondering if it would be possible to change the a pin of a microcontroller to another pin. Does it depend on the chip or is it generally (im)possible? Specifically, I'm interested in Ethernet ...
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1answer
96 views

Newbie pinout questions for LM360N

For my first project, I'm trying to make an LED light up when the voltage from a variable source reaches a certain point (13V in my exiting circuit). To do this, I'm going to take the output from a ...
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2answers
144 views

Which microcontroller pins should i use with this project?

I have some knowledge about Arduino, but it's my first time using solo microcontrollers and this sort of thing, i have no idea of what i should do in this case. I'm following a guide that users ...
1
vote
1answer
441 views

Determining TrackPoint pinout

I have salvaged this TrackPoint from a lenovo laptop keyboard. Unfortunately I don't know the exact model, but I don't think it's older than say 6 years. I would like to connect this to my PC via an ...
0
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1answer
55 views

How do I wire these potentiometers?

I'm trying to make this circuit (components in question are R10 and R11). I have two really nice sliders I bought from Science ...
0
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1answer
81 views

UART TTL - Which pin is 5V?

I have a board with the following connections: TMS TDI TDO RXD TXD RTCK TRST TCK GND I am trying to connect my USB UART TTL to it (I have connected the RXD, TXD, GND) but I am not sure which pin I ...
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1answer
38 views

What determines the # of pins of a cmos Imaging sensor?

Why do some cmos Imaging sensors have 48 pins and others 36 and some 34...e.c.t? I'm new to these sensors and I don't really understand the connectivity differences.
0
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1answer
65 views

I need a quad NOR gate that is pinned out like a quad AND gate? Is there a good way to search for this?

So I have the footprint for a 2-input Quad AND gate (SN74LV08A) on a PCB. It is a 14-TSSOP and is pinned out like this: However, I want to change the logic to four NOR gates. The problem is, all of ...
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2answers
82 views

Layout of doubled SW pin on buck converter IC

I'm working on a PCB for the MP2617. That IC integrates a buck converter and has two physical SW pins sandwiching the VIN pin, as shown in my tentative layout below. No other pins on the IC are ...
2
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1answer
195 views

Pinout for a 6 pin 3x4 keypad

I have this old keypad sitting around, never used it because I could never figure out the pinout for it. Anyone know how this would be wired to something such as a picaxe/arduino? Front of the ...
5
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2answers
440 views

Confusion around a components pins

I'm looking to use a RBO40 reverse battery & over voltage protection. I was unable to find the RBO40-40T (with 3 pins) anywhere so had to get RBO40-40G, which is slightly different, it has the ...
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2answers
328 views

How do I wire a 9 pin serial connector into a RJ11 4pin connector?

I am working on a project, the door control system I am using is a bit old, and it works through a serial connector on a 4 pin RJ11 line. I am currently trying to wire an old serial wire into its RJ11 ...
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4answers
1k views

Replacing the Arduino voltage regulator

I want to replace the onboard AMS1117-5.0 (broken) with a LM7805. However, the pinout is different between the two voltage regulators; AMS1117: Gnd, Vout, Vin vs LM7805: Vin, Gnd, Vout. I would like ...
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1answer
91 views

What do I need A0 in a USB Controller (PDIUSBD12)?

I'm reading the datasheet of the USB controller PIDUSBD12, but I can't understand what the goal of the A0 pin. In the controller there is a data bus (D0-7) and this A0 pin, the datasheet says that ...
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2answers
393 views

Output clock of the LPC1768?

I am using NXP's LPC1768 development board and I came across the User Manual for this part and page 67/849 section 4.10 descusses the External Clock Output. I couldn't figure out which pin out of the ...
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2answers
143 views

Help identifying pinout [closed]

I've found a mini camera. The device has a mini-objective with a tag P3.7 (I guess this is the resolution), 2 wires (red and white which I suppose are ...
0
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2answers
334 views

What are the address input pins used for in ds1621?

I just bought a ds1621 temperature sensor and started reading its datasheet. I found out that it have 3 pins (A0,A1,A2) which as specified in the datasheet are chip address input. Can somebody ...
0
votes
1answer
436 views

Salvaging colour LCD from Brother MFC-J6710DW printer

I have salvaged a colour LCD from an old Brother MFC-J6710DW printer and I'm trying to work out its pinout, to eventually use with an Arduino. On the back it has the following characters printed: ...
0
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2answers
699 views

How do I use a 5 pin potentiometer?

I have a 5 pin trim pot I desoldered from an old board. I am assuming maybe it is a dual gang poteniometer or something with a common ground pin. Does anyone have any ideas what the actual pinouts ...
0
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1answer
99 views

Need Help… So Confused with this QFP32 SA663 Socket

I purchased an SA663 clone QFP32 Socket online, but to my extreme dismay, it doesn't work, or at least I haven't been able to get it to. Basically the original SA663 is a 1:1 pinout. But after trying ...
0
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3answers
144 views

Can this circuit board be repaired?

This is a board out of a Super Nintendo game cartridge. It appears to have damage from a few of the leads, and this game definitely doesn't work when tested. The game is very rare and worth my time ...
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2answers
221 views

How do i hook up this 2-digit 7-segment display

I have a 2-digit 7-segment display. I'm not able to determine the common anode pins even after consulting the datasheet. Where are the anode pins?
0
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1answer
283 views

old ibm trackpoint pin scheme

I have a trackpoint from a thinkpad keyboard with a trackpoint mounting a PTPM754DR microcontroller, what I'm trying to do is to find the usage of various pin on the trackpoint board and connect them ...
0
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1answer
38 views

hantronix HDM24216L-2-L3ES pinout

I am looking for the pinout on a hantronix HDM24216L-2-L3ES 24x1 LCD. I found the datasheet: http://www.hantronix.com/files/data/1278557021char-comm.pdf but I cant determine what the pinout is. Can ...
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2answers
649 views

Datasheet for a DU1PU relay?

I took apart an old microwave oven and found the relay the computer chip closes to activate the magnetron. The relay is a DEC DU1PU, made in China. Does anyone have a datasheet for it? I'm mostly ...
0
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2answers
74 views

How to I wire this particular variant of 2.5mm female jack?

The second image has the pins not the top one. Now the pinouts are a bit confusing here. Now, I've wired a jack before but none like this. Can someone please help me out?
0
votes
1answer
121 views

How do I wire my 4066N analogue switch

I plan to use one of these to throw two switches at the same time: http://www.digikey.ca/product-detail/en/74HCT4066N,112/568-7854-5-ND/1230913 The switches should be closed when the voltage from ...
2
votes
4answers
295 views

PCB Layout, Functional vs Actual Pin Order

I'd like to continue this conversation here: CAD Schematic pin arrangement approach Basically, there are 2 major ways to do schematic symbols, either with true pin order or by grouping pins by their ...
0
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1answer
163 views

What are these unpopulated holes on the Arduino Leonardo?

None of the pinouts online mention these holes next to the power barrel and LEDs. Are they connected to anything?
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5answers
611 views

LDO - SOT223 - What's the Fourth pin for?

What's the fourth pin in LD1117-33 for (the thick on the top)?
3
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1answer
3k views

DC Power supply Jack connector pinout

I'm trying to make a footprint for this connector: But I have a trouble about pinout. What is the SLEEVE TERMINAL, TIP TERMINAL, SHUNT TERMINAL? What is my power connection? V+ and GND?
0
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1answer
572 views

How to connect 5X7 LED dot matrix which has 7X7 pin both side.

I have 5X7 led dot matrix. But I am confused, how to connect it. Because it has 7 pin both the side. So, I am not going to differentiate that which is Row and column pin.
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3answers
210 views

Schematic & pin reduction

I am using arduino Uno for developing my project. There are totally 24 analog hall sensor out put,1 temprature ananlog output, 1 Rshunt voltgae measurement. There are totally 26 Analog sensor.I am ...
0
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1answer
102 views

CS4234 has two I2S data I/O lines?

I have an application where I'll be sending audio data to a codec. The CS4234 fits my needs very well, although with other I2S codecs, there have only been one data in line for the communication. The ...
0
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2answers
116 views

I am messing around with some power supplies. There are pinouts labelled “reserved” and “remote”- what are they?

I have worked out that that the Remote pin works like the Green "Power Supply On (active low)" wire on an ATX supply, and found a wiki on remote sensing about it being used to get diagnostics on the ...
2
votes
1answer
223 views

27512 pinout and PCB layout

I'm trying to design PCB traces for a 27512 EPROM chip. But its pinout for the higher half of the address bus seems completely illogical to me and I cannot imagine how should I lay out my traces for ...