Questions tagged [serial]
In serial communication data is transmitted as a sequence in time. Main advantage: much less wires needed. Main disadvantage: Higher bandwidth for the same throughput.
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Reducing EMI caused by unterminated serial TX line
I have a PCB with a serial TX UART used for programming & logs.
Most of the time nothing is connected & the ~50mm TX trace is unconnected - basically an antenna.
Are there any best practices ...
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How to use nRF24L01 on ATTiny85 and together with serial TX?
I am using ATTiny85 + nRF24L01 to receive radio messages.
After connecting nRF24L01 to ATTiny85 I don't have much PINs left, as I use all pins except PB5=RST:
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CAN BUS Termination resistor sizing
I am using ISO1042 CAN Transceiver to establish communication between my board micro-controller with other board controller separated by 0.5m distance. I am using standard 120 ohm termination ...
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ESP32-CAM flash via UART
I'm looking for help to upload from Arduino IDE into an ESP32-CAM module, without an FTDI programmer or shield.
Context
I've got a couple of ESP32-CAM modules with an associated ESP32-CAM-MB shield ...
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max3232 disconnection suddenly - problem
Hi I use a Max3232 chip to connect the RS232 between the microcontroller(STM32F103) and an HMI, the problem is that sometimes this connection will be disconnected and no longer work, this may happen ...
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What size should I select for the resistor? I have led and SSR and 24VDC source [closed]
Could you please clarify this circuit with me? I have selected 90 ohms. Please let me know if I need to do something differently here.
R=(24-30.3)/20mA= 1035ohm and I select 1Kohm
I appreciate any ...
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ESP32-S3 USB Serial is read-only
I have a ESP32-S3-DevKitC-1 board. It has two USB ports, one connected to a USB to UART chip (brigde), the other connected to SoC directly (USB Serial).
The USB Serial is much faster than bridge for ...
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AD677JNZ Raspberry Pi Connection
Relatively new to electronics, I would like to connect the AD677JNZ analog-to-digital (ADC) to a Raspberry Pi 4 to monitor the voltage of a potentiometer. However, I am having issues with the ...
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What is this logic gate / electric symbol
I was looking through the MAX3232 datasheet (for a uni project) and I found these strange looking not gates (seen in the below picture) with an s-like symbol inside. I've been trying to find what it ...
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RS232 connection
The picture in this post is from a Casio XJ-A140 projector. Casio decided to use a proprietary connector for serial communication that is no longer available. I am trying to get this projector to ...
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Serial to USB aggregation with Pi
I'd like to aggregate 4 serial devices to a single USB device (a rPi zero with only 2 UART).
So far, I've been able to design the following schematic but I'm not sure of the components used nor if the ...
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MSSP setup on PIC16F18313
I am new to using PIC16F18313 and having some difficulty setting up the MSSP module. I am using PICKit 3 on Windows 10 with MPLAB X IDE v5.40 and XC8 compiler v2.41.
The IC has pullup resistors 4.7k ...
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H11L1M optocoupler is inverting
I'd like to protect a serial connection with a H11L1M (I can easily get some at work and it works from 3 to 16 V).
The problem is this optocoupler is inverting and has the following truth table:
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How to program a new STM32F103C8T6 on custom PCB via USB to serial converter?
I puchased some STM32F103C8T6 from AliExpress which I soldered to my homemade PCB via a reflow oven. But, the problem is my program uploaded, but it did not run.
To confirm that it's not the pcbs, I ...
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Low-Voltage Differential Signalling (LVDS) not working
I have updated the schematic and hopefully included all the suggestions.
The problem of the LED strip flickering is still there, however, I have noticed a slight improvement after altering the circuit ...
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