Questions tagged [pinout]
The arrangement of pins and their functions on a device
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Where do I see the pin functions?
I got this usb² to i²C board: https://www.adafruit.com/product/2264
and I wonder where I can see any information about what the pins D0-D7 or C0-C9 mean, actually also even the same about GND and 3V, ...
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5
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VGA cable wire pinout
I stripped this VGA cable. It only has 5 wires. One is just single copper strand.
Is this normal? If so what would be the pinout?
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What's the Purpose of pin 44 on IDE cables
So I was looking at the pinout for 44 pin, notebook type IDE cables, and the 44th pin is listed as /TYPE : Type (0=ATA), what use does it have?
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Read transformer value and safety tips [closed]
I was trying to power up an old c64 without its original power supply, so i recovered a transformer from an old PC PSU.
Here's a top and a bottom view:
Up view
Bottom view
So I have a few Questions:
...
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Why does this USB-C connection only work in one connector orientation?
I have a setup of devices connected as follows:
A B C
[laptop]<---<<--->[keyboard]
Where
<- is a ...
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-VOUT, and COM pins for DC-DC Converter
For this DC-DC converter
it shows PINs labelled as (see image):
1.) This is from the datasheet, https://www.murata.com/-/media/webrenewal/products/power/datasheet/ust-3w.pdf one of the few that ...
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3
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1
answer
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LM4040 pinout not matching reality vs datasheet
I bought some voltage references from the LM4040 family, NFC41I and NFC20I i.e. ...
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0
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LTSpice Error from Unedited VOH1016 PSpice Model
I downloaded a PSpice model from Vishay for the VOH1016 optocoupler, and without modifying anything, I am getting a pin mismatch error. I opened the .lib file in LTSpice and automatically created the ...
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Dali thermal DLC384 datasheet
I have ordered this chip DLC384 from Dali-thermal some time ago but unfortunately never received the electric pin-outs and usage description/interface description.
I mailed them multiple times over ...
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How to connect LIS3DHTR accelerometer pins?
I want use LIS3DHTR in one of my projects. I have problem with some pins of this sensor.
ADC pins: I want to connect some sensors with wire to jumper, is it OK? Datasheet said we can connect ADC pins ...
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Is there a standard for FPC pin numbering direction?
Is there a standard for FPC connector pin numbers? (ie: which end is pin 1)
I'm trying to design a PCB that uses an LCD display module with pin numbering such that when the cable is contact down and ...
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STM32 - While using SPI in write-only mode (MOSI), assign MISO pin to GPIO
While using HW SPI only for write purpose (only STM32 chip as master sends data through MOSI pin), is it possible to assign the MISO pin to general GPIO? I need it because the trace on PCB is already ...
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2
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PIC16F54 I/P PDIP-18 8-Bit microcontroller: self-made PIC programmer with USB serial communication
The PIC programmer circuit below is from the PIC16F54 datasheet.
The programming stage can be reached when the pins RB6 and RB7 are set low and the VPP pin gets more voltage than the power supply in ...
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ESP-WROOM-02 SPI flash reserved pins
I’m using some ESP-WROOM-02 modules I had lying around for the first time and I’m a little confused about the included SPI flash IC as part of the module and was hoping someone that has used it could ...
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How to power multiple servo motors?
I'm doing a robot arm for a project, but programming has become the least of my problems.
I don't know how to connect the servo motors. I have a power module that apparently has around 5 V of output (...
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How to connect female audio jack with breadboard
I need to connect this female audio jack to a breadboard, and then to an amplifier and converter. I don't know the pinout of this component and the GND, can anyone help me?
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Seven-segment display pinout
Im working on a project with a 4-digit 7-segment display. The display is a FQY3042BUR-21 0916.
I designed the circuit in Proteus and there were 8 data pins (a,b,c,d,e,f,g,dp) and 4 digit select pins(1,...
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74hc595 with not connected pin
I've bought some 74HC595 in SOP-16 without directly looking at their datasheet and now that I have looked at it for my project I saw that it is marked that the OE and MR pin are not connected.
I ...
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1
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Standard pin-out for simple 2-segment LED display? (4 pins)
My PC motherboard has a built-in 2-segment LED display that displays diagnostic codes such as "00" or "AF".
I'd like to connect a microcontroller to read these codes for ...
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Pin assignment of L86 GPS module
I have a gps module called quectel L86-m33. However I couldn't understand which pin is first one(rx in this case) and which one is ground. I think large size pad is ground but I need a correction.
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How can I get these pins description?
How can I get these pins' descriptions? I researched on the internet a lot but I couldn't find anything. Here is the datasheet PDF download link and website.
I specially need camera control pins. I ...
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3
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Does VGA DB15 have the same pinout as VGA DE15?
I am building a small device with VGA for the display. Sadly the diagrams I am using are for a 15 pin, 2 row connector, and I would like to use a 15 pin, 3 row connector for compatibility.
Do they ...
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How to check the polarity of a common-mode choke?
I purchased some common-mode chokes and the documentation provided states:
As this pinout does not correspond to other chokes of the same format, I have doubts about the position of the dots (pins 1 ...
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Confirm FFC pinout for forward and reverse direction
The first timer is using FFC so I would like to know about the pinout of the FFC forward and reverse cable. Below is an image from eBay showing both types; I have annotated pin1.
Is my understanding ...
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Finding the pinout of a bare LCD display
My kids have night lights that died. Of course I gutted them and found nice little displays. They show a 4-level battery control and a 2-level light control. I think they are pretty neat and I would ...
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2
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ESP32 Dev Board SPI connection
Recently, I have been given a task at the place where I am serving my internship. I have been given a pair of TTGO LoRa32 T3 V1.6.1 boards which house ESP32 microcontrollers and my task is to connect ...
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Clock issue or set-reset issue: I am unsure how to debug and assess the situation
I currently have two issues I'm not sure how to deal with, and I am unsure of which is preventing implementation.
I am trying to debug a memory interface and I am unsure of what to do. My first ...
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1
answer
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Why do some USB Type B cables have an ID pinout but others have a DGND pinout, how do I tell the difference between them without ripping it apart?
On this page, it is clear that the pinout for a Micro USB type B is:
VDD (+5V)
D- (Data-)
D+ (Data+)
ID (ID)
GND (Ground)
However, when I opened and stripped apart my Micro USB type B, it looks like ...
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Texas Instruments LMR14050SDDA Device Markings
Long story short, I cannot wait until 2024 for my order of LMR14050SDDA buck converter IC's to be fulfilled. I bought a few demo boards from Mouser and Digikey so I can salvage the IC from these. ...
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How to read MCU schematic and map each pin correctly
I relatively new to working with MCU's and have been having some trouble figuring out what "mode" to set a pin to when trying to map it to the correct function. For this project, I am using ...
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2
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What do these different types of pin shapes mean?
Do these pins with different shapes have special meaning. Is there an industry standard for pin shapes and sizes?
I have also noticed that some solder pads on boards are of Square shape and most of ...
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CPU test pins (test as a noun)
Looking at the FM2 socket for AMD processors I've noticed that there are some "test pins", i.e V22.
What are they for? Is it possible to manage them, i.e for some led signaling?
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Is the dot on an eight pin MOSFET the source or gate?
I watched a youtube video explaining that the dot indicates the start of the source pin segment, and the 4th pin on the same side, is the gate. With a DMM, I get continuity between the dot pin and ...
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Variable inductor pinout
I do not understand the pinout of the variable inductors from Murata. Here is an example:
I can see that the coil is on pins four and six, but what are the other pins for?
The full datasheet is here.
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Why do some microcontrollers have a single port's pins distributed widely around the package?
I was trying to use a microcontroller's 16-bit IO port to interface with a parallel display. I found that the IOs of a single port (let's say PORTB) are highly fragmented around the microcontroller:
...
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STM32 20 pin cable pinout
I have an STM32 20 pin cable used by the ST-Link to programme the microcontrollers like the one in the image
I know the pinout of the connector is the one below
unfortunately I can't find the ...
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1
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DE-9 Connector for 100BaseTX Ethernet - How to assign pinout?
I need to use a DE-9 connector for my Ethernet Interface (RGMII 100Base-TX) which has two pairs of differential signals TX and RX. I have attached the pinout for the DE-9 connector below.
I have the ...
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Is anyone familiar with this 29 pin connection?
It is the output port of a power supply. Anyone knows what this connection is called and where to buy the right cables? If you've come across this, please offer some details. Thanks.
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Why is this 75 ohm resistor present in the Ethernet connector? (10/100Base-TX)
In this datasheet (and in other similar) pins J4, J5, J7, J8 are connected to the ground with a resistor and cap.
For 10/100Base-TX pinout it seems they are not used (at least for modern of the ...
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1
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Is an RST pin the same as a microcontroller NRST pin?
I am currently working on a PCB design using a STM32F411CEU6 microcontroller. In order to debug the circuit using an ST-Link, I have placed a header in order to access the pins in the microcontroller. ...
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Is ESP32's GPIO25 Pin adc1 or adc2?
I am trying to design a PCB with ESP32 and a Lora module I want to use serial1 for Lora RX/TX communications. I saw a board which is using GPI35 to Lora RX and GPIO25 to Lora TX. But in same time ...
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Why is one of my MCU (Bluepill) digital pins broken/not working?
Sorry for the noob question.
I'm working on an ESC circuit, first I want to work on a very simple ESC circuit without Back-EMF detection like in this video https://www.youtube.com/watch?v=kAaknXe_JSk&...
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Should HOLD pin be grounded in a macronix MX35LF1GE4AB chip if I only want to read data from it?
I have a Macronix MX35LF1GE4AB NAND Flash and I want to read its contents using an rarpberry pi.
But I have trouble on how to wire the HOLD pin. Should I ground it. What I want it to read data from it....
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NodeMcu (ESP8266) pinout problem
I am trying to use a nodeMcu in a project that involves:
a microSD card reader (SPI),
two devices that communicate with nodeMcu via software serial,
a switch
and 2 leds.
Currently the microSD is ...
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1
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Designing baseboard for Intel processor
We are studying the feasibility of designing a minimal board for a high end CPU such as Intel's 8th Gen Core i7/9 alongside some FPGA. We have experience with DDR3/PCIe designs and know about high ...
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HDMI Type E pinout
I am looking for the pin out of the HDMI Type-E connector? It is surprisingly hard to find and as far as I know the pins 1-19 are not the same as Type-A.
What is the pin out of HDMI Type-E?
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USB pinout on OMRON thermal printer
I'm trying to figure out how an OMRON Printer HEM PRT 1-Z operates (see related question on the Raspberry Pi StackExchange & IC identification question) in order to wire it to a Raspberry Pi Pico. ...
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ESP32-s2 Wroom. Are the SDMMC pins same as in ESP32 (not S2)
The documentation is not very clear.
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/sdmmc_host.html
Are pins the same in the S2 variant?
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How important is a PCIE_PEG_TXN pin on a motherboard?
I managed to break the PCIE_PEG_TXN 2 pin on my motherboard according to this pin layout: https://sector.biz.ua/docs/lga-775-1150-1151-1156-1155-1366-2011-pinouts/s1200_1.png I am curious if it is ...
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Is the WIZnet W5500 module affected by the signal pin of a relay module?
I am using a Raspberry Pi Pico, a W5500, and a relay module. When I don't connect 24VDC for the relay module (NO and COM pins,) the Pico, W5500 and relay module work properly (the relay only blinks.)
...
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