Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [module]

75 questions
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What to check for when buying an electronic component or module

This has been raised as a canonical Q and A for future reference How can I acquire electronic parts/items/modules and ensure that there is minimal risk of them being unsuitable for my project or design?
Andy aka
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Why does the Tesla battery module capacity not work out in calculation?

https://www.evwest.com/catalog/product_info.php?products_id=463 I am referring to the Tesla battery module listed in the above link. It says a single cell has the following specs: Nominal Voltage = 3.8V Cell capacity = 3400 mAh The cells are…
user401393
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Shielded -vs- Non-Shielded, running CAN Data Cable w/ 115/200VAC 3-Phase @ 400Hz

*Edited, AGAIN, in an attempt to remove any confusion Settle this debate! I am designing a Harness for testing the functionality of a PDU (Power Drive Unit), operated using CAN (ARINC-825). Prior to my time here, they used just regular wire (NOT…
joel cox
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Why do some DC to DC converters use high inductor values (ie: 220uH or more), while some of them use much lower value inductors (ie: 3.3uH or less)

I've noticed that many DC to DC converters that have have almost the same current output will have inductors that vary vastly in their rating. For instance, I've got two separate buck-boost modules for battery charging and discharging. They have…
soconnoriv
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Can't get 2-relay module to work through JD-Vcc

I bought this 2-relay module: https://www.amazon.de/gp/product/B00E0NTPP4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 I'm testing it out using a 5v 1 amp power supply. If the JD-Vcc jumper is set and I power the relay board via the Vcc and…
user9374448
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How to convert Li-ion battery voltage to 1.5 V?

I want to use Li-ion batteries to power devices that work with AA (1.5 V) batteries, to have best autonomy and to be able to recharge it easily (using a battery manager module). I had thought of a buck converter module, but in the market I cannot…
Daniel González
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Help me to identify this crystal oscillator module

Please help me to identify the manufacturer of this crystal oscillator module so that I can search for its datasheet.
Ashok Das
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RF coexistence strategies on PCBA level

What are some basic principles and strategies when designing a PCB/PCBA with multiple RF transceivers/modules for coexistance and RED compliance (or similar)? I’m primarily referring to consumer technologies such as WiFi, Bluetooth, 868, 433, LTE,…
NoobPointerException
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Passing register value in Verilog module as input to another module

I use the XADC IP, for which a module na7_chseq_xadc is used to write the digital data from the ADC in registers adc2_out, adc3_out, and adc10_out. In this module, the XADC IP is instantiated. module na7_chseq_xadc( input clk, input vauxp2, input…
Suhanya
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Connect the camera module to the PC

I have several camera modules as shown below, but I don't know how to connect them to my PC. I searched for similar modules and found the camera module CMT-2MP-IMX291-C014 Using Sensor 1/2.8'' SONY IMX291 Sensor has identical components. However, my…
Kẻ Vô Danh
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Anyone know what chip I blew?

Apparently you can't run 7.4V servos through this. Anyone know what chip I blew up? Trying to work out if I can fix it or need to buy another PCA9685. Thanks
djb
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Voltage regulation on a relay module

I have an Arduino project which involves turning on a couple of devices which require an input voltage in excess of 5 V. I have successfully prototyped it using three Grove-Relay modules. I now want to move it to a PCB, and space is at a premium.…
TomTry
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Micro USB 4-channel relay module guide

I bought this module but I don't know how to use it. The supplier provides this example: Setting virtual serial port parameters: /bin/stty -F /dev/ttyUSB0 9600 raw -echo Device initialization: echo -ne "x50x51" > /dev/ttyUSB0 Example relay state…
Sederato
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SD card module with ESP32

I'm using an SD card module with ESP32. My plan is to store configurations such as SSID and passwords. I tried the function with a text file which contains the text "Hello" and for Serial.write(file.read()); it prints exactly "Hello". But,…
kachaya
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High voltage booster with continuous output?

I need a module that can take a DC voltage of 2V - 12V continuously as its input and produce atleast 2KV DC continuously as its output. I've come across high voltage generator boost modules but they produce output in pulse (discontinuous.) What I…
Somanna
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