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Questions tagged [pinout]

The arrangement of pins and their functions on a device

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1answer
59 views

Pin out clarification, I need some help understanding the pin outs

What do the pins "/CS", "SCK", and "SDI" mean? From my bad understanding of this diagram, I only have to run 3.3V to "/CS", "SCK", and "SDI". Is this true or am I way off? Let me know in the ...
-3
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1answer
42 views

TFT 54 pin display driven by 40pin HDMI driver [on hold]

I have a LCD screen that needs to be connected to a HDMI driver board. The LCD screen has a 54 pin FPC cable that I need to attach to a separate breakout board. Once broken out I need to attach the ...
4
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5answers
2k views

What is the criteria of choosing a given pin pattern in ICs?

For example, why in the Atmega328P or other MCUs, the group of ports are not contiguous? Like PORTC and PORTB in the Atmega example: Another example is this MC9S12ZV: In particular, checking the PPn ...
8
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2answers
2k views

Microchip documentation does not label CAN buss pins on micro controller pinout diagram

Link to the data sheet I want to use Microchips DSPIC33FJ128GP802 in a new project and want to use the ECAN buss. The problem ...
1
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1answer
150 views

How to determine IBM USB 6 pin header pinout?

I have two IBM Power 7 machines - Power720 and Power740 (8202-E4B and 8205-E6B) and both have an internal USB 6 pin header (labelled J3_TAPEUSB_SIGNAL). These are for connection to a single device (...
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1answer
61 views

SPI programming flash chip(s) - connecting HOLD and WP pins

I am trying to learn with SPI programming and have started with this guide using a Beaglebone Black. I have one DIP8 package connected via breadboard for testing, and another SOIC8 package on-board ...
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0answers
40 views

LCD 18 (6 x3 ) Pinout without Datasheet AW -60i LCM V4.1

I have this (18 X 3) LCD Pins, I need help to find the Datasheet or the pinout for it. AW -60i LCM V4.1
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0answers
166 views

Pinout of FlySky FS-I6 Trainer Cable

The FlySky FS-I6 RC transmitter has provision to connect two transmitters together via a special trainer/student cable. A female S-Video connector presents 1=PPM OUT, 2=PPM IN, 3=TX, 4=RX, Case=GND ...
0
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1answer
21 views

Is connector 50PS-JMDSS-G-1-TF symetrical?

I'm looking at a design using connector 50PS-JMDSS-G-1-TF and the pin numbers do not match. They are symmetrically switched. So they would match if I could plug the connector the opposite way. Looking ...
6
votes
1answer
830 views

What do these arrows on a pinout represent?

What do these arrows represent? Is there any way to memorize it easily?
6
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1answer
1k views

What is the meaning of the “lasso loop” on circuit diagram?

I've never seen this "loop" structure in a circuit diagram before. Pin 6 has a line that loops around the lines from pins 5 and 9. Pin 7 has a line that loops around all other lines, except the ?...
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2answers
115 views

first pin of package LQFP

this could be most stupid question but i couldnt find where is the first pin: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-11157-32-bit-Cortex-M4-Microcontroller-SAM4E16-SAM4E8_Datasheet.pdf ...
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1answer
61 views

How to wire a 6-pin 1/4" audio jack?

I'm fairly new to electronics, and I'm working on an amp for my guitar. I need to wire a 1/4" audio jack as the input of the amp. The jack has 6 pins and I'm really confused. I found the datasheet (...
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3answers
3k views

How do I wire a TMC2130 stepper motor driver to an Arduino UNO in order to control it?

I simply want to control a stepper motor with an Arduino and I need the TMC2130 to ensure it runs very quiet. I've done a lot of searching and somehow can't find how to actually wire it to an Arduino ...
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0answers
30 views

Analyzing pinout of photodiode in a ic

I have dissasembled a pick up head from a CD Rom. I can control the laser and but I also want to "read" the photodiode that senses the light reflected back. It is packaged in a clear plastic and has 8 ...
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0answers
1k views

Terminology - VDD vs VSS?

What is the correct voltage terminology for VDD and VSS? I've been installing a Winstar WEH001602D OLED and was struggling until I realised that it appears to have pins 1 and 2 reversed compared to ...
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1answer
139 views

How to read pinout of this SPDT relay G8N-1F

Introduction: The direction indicators of the car (Honda FR-V) are not working anymore. I managed to get the ICU (integrated control unit) out of the fuse box beneath the steering wheel. Hell of a ...
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0answers
204 views

OCuLink pinout: how does BP TYPE singal work?

I need to use an OCuLink connection to carry a 4x PCIe link from a motherboard/adapter card (like this one https://www.supermicro.com/products/accessories/addon/AOC-SLG3-2E4T.cfm) to a custom board. ...
0
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1answer
166 views

DJI Zenmuse Z3 Pinout

Can anyone explain this pinout diagram? I only know that D+/- AMBA & DM are USB D+/- and H&L are for the CAN bus. What are do the blue and red contacts mean?
1
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3answers
605 views

Vss and Vdd pins' position on microcontrollers

I am starting to work on some designs with MCU-based boards, or sometimes just looking at companies' products involving MCUs such as Espressif, Udoo, NXP... I have noticed a puzzling similarity ...
1
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2answers
181 views

Reviving / upgrading a commercial LED sign

I have a commercial LED sign that in its stock format is only controllable by IR remote (the remote is long gone). I'm trying to create a new controller for it so I can push data from one of our ...
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2answers
183 views

Can no-connect pins on EEPROM ever be connected to VCC or GND?

I created a circuit in which all the address inputs of an AT28C256 are connected to outputs of shift registers (74HC164). In the future I will do many of these circuits, however I haven't yet ...
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2answers
171 views

8x8 LED Matrix has 26 pins

Recently I issued a 8x8 matrix from electronics club in my college (if thats what you want) without noticing the number of pins present on it. Everywhere on the internet, working of 8x8 is explained ...
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0answers
71 views

How to identify pinouts in an Hp Server Front Panel

So I found some old server front panel and want to re-purpose its LEDs and buttons for some custom PC. How do I begin to identify the pin-outs without burning down the circuits? Image gallery
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1answer
1k views

LM317T with weird pinout?

So, some time ago I bought some LM317T voltage regulators. Today, I made a 50mA constant current circuit like this: Now, before you tell me that my circuit is wrong and that it should be wired in ...
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0answers
103 views

Mini HDMI female - is one pin supposed to be shorter?

I have a Raspberry Pi Zero with Mini HDMI output. I acts kinda weirdly - it does work with a TV with HDMI input, but when plugged into a monitor with DVI input (with an appropriate HDMI>DVI cable) it ...
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2answers
3k views

Pinout for board to board ribbon cable

Update/significant change: The question below is based on a false premise: taking into account that an IDC with keys pointing out from the cable on both ends swaps the front and back rows, simply ...
0
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1answer
1k views

BOOT0 circuit design in STM32f446

I'm designing STM32f446 chip in PCB in a project. It will be programmed through SWD. but I'm stuck with (BOOT0) pin. I want it to be (0) as recommended. The thing is that there is no enough info. ...
1
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3answers
492 views

Why are “ice cube” PCB mount power relays pinned out so that the COM pin is between the coil pins?

If you have used "ice cube" type PCB mount power relays before, you're probably familiar with the de facto standard pinout for them: Why is this such a standard pinout though? It's clearly not an ...
3
votes
2answers
7k views

SPI naming, SDI/MOSI confusion

I'm wiring an MPU 9250 in an SPI bus, and according to datasheet, the same pin as I2C SDA is SPI SDI: Which leads me to think that since this is Data Input in the slave (MPU9250), would be equivalent ...
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1answer
69 views

What type of sensor has diamond pinout like shown? Resistive bridge? Wheatstone?

I have worked with basic resistive sensors before, but I have never seen a pinout like this one and I'm not sure how the voltages work for these pins. I was told it may be a resistive bridge, but it ...
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2answers
1k views

Canon K30357 WiFi Module

I am trying to get the right pinout to this module from a Canon MX492. I would like to know which one is goes to red, black, green and white for a usb connector. I don't have the whole printer to test ...
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0answers
90 views

What is this early LCD/PDP interface?

This is the pinout for the internal screen connector of a 1986 Toshiba T3100SX 'laptop'. The screen itself is a orange neon gas plasma display (although they also made some with an LCD). Does anyone ...
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2answers
132 views

What does the COM do on a DC/DC converter?

I got one of these DC/DC convert chips thats supposed to give a -25/25 V voltage output. My "RGZ" model seems to be outputting -50/50 V and getting toasty. I'm not sure what the COM is supposed to ...
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1answer
562 views

Connecting MIDI patch cable DIN connector shielding and pins 1, 5

I am building myself a MIDI patch cable. According to resources such as http://www.leadsdirect.co.uk/technical-library/pinouts-wiring-diagrams/din-midi-wiring/ the middle pin of the DIN connector (pin ...
2
votes
1answer
892 views

Driving a Strange 12-Pin, 7-Segment, 4-Digit LCD display

I am putting together a project that requires a 4-digit numeric display and wound up ordering this. Unfortunately, something I completely failed to notice when ordering the LCD was that its pin ...
0
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1answer
34 views

IO Cathode PINOUT

I have to connect a peripheral 1-Wire 13.56Mhz RFID Reader https://doc.ruptela.lt/pages/viewpage.action?pageId=884781) to a device. The only info I have from the device ((FM-eco4/4+ ruptela: http://...
0
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1answer
2k views

Wiring an On-Off-On-Off pushbutton

I am new to electricity & electronics, and I'm interested in using this "On-Off-On-Off" pushbutton in a project. I want to just make sure that I understand how its intended to be wired: In that ...
0
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2answers
148 views

Relay wiring woes

I am using a relay to control a dead simple circuit comprised of a buzzer and a 9V battery. I read the entire datasheet for the relay I purchased, and couldn't understand the schematic. The function ...
0
votes
2answers
3k views

Old transformer input output

I have a transformer found on my old computer ups. I dont understand its pin out. It has black and red lead one side. And on adjacent side it has four wires connected with a female connector. I want ...
9
votes
2answers
730 views

Handling “Upside-Down” IC Pinouts on PCB

I printed a board recently and, long story short, the pads aren't laid out correctly for two IC's: a SOIC8 MAX1771 and an 80-pin HV507. I moved all the pads from the top to the bottom layer, but ...
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4answers
267 views

How do I figure out the windings of a transformer

I have a transformer. It is a custom wound transformer for a old linear powersupply. As is common, it has two primary windings for supporting 115V and 230V operations (or, 120V and 240V as is now more ...
1
vote
1answer
388 views

What is the shell of a USB-C plug for?

A USB-C has this characteristic shell (the outermost visible metal part). Would the connection still work without any problems if i were to remove the shell (given that all the pins still line up)? ...
2
votes
1answer
3k views

standard ethernet pinout for M12 A coded

I would love to follow the most common pinout (I design connector and receptable, but you never know). I find conflicting sources: -RJ45 connector exact same pinout number by number: -A big cable ...
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1answer
216 views

Manual Probe method of finding JTAG pinout

There is manual Probe method of finding JTAG pinout on RIFF Box JTAG programmer, by measurement of voltage on JTAG pins while alternately setting on JTAG pins the logical level 1 and 0. Is it possible ...
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10answers
23k views

Why is an Ethernet cable not grounded?

There is no dedicated GND in the classical Ethernet 8P8C ("RJ45") pinout.[1] Why does the Ethernet spec not include a ground, unlike many other cable types used for interconnecting devices that may ...
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1answer
1k views

8-pin ARM JTAG interface header

An embedded device based on ARM926EJ-S revision 5 (ARMv5TEJ) chip. The PCB have 8-pin test points for connecting JTAG debug interface (2.54mm pitch). I tried to find specification for this type of ARM ...
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3answers
129 views

detect VGA port (through pinout) and send a command to microcontroller

How can i realize that a video project is connected to laptop through a VGA port?? I think I can understand it from the VGA pinout; but i don't know which one?? If I realize it then I can send a ...
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1answer
1k views

Controlling the LM3914

First of all here's the datasheet for the IC, a dot/bar display driver. What I'm confused about are the following pins: 4,6,7,8 The datasheet mentions a 1.25V reference source. Is that built into ...
4
votes
3answers
2k views

Meaning of small circles and sharps (#) in pinout diagram?

I'm trying to re-plumb a nice proprietary case for continued use with arbitrary motherboards. But I've no clear idea what the meaning of the small circles (shown in red, here) at the juncture of the ...