All Questions
Tagged with serial raspberry-pi
34
questions
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44
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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 ...
user360439
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votes
1
answer
105
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Interfacing a Rpi with absolute encoder using RS-422 (SSI) [closed]
So I am working on a project that requires me reading from an absolute encoder. It uses SSI (RS-422 protocol) and the datasheet is the following: https://www.hohner-elektrotechnik.de/upload/data-sheet-...
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41
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I2C issue communicating with an analog to digital converter mux ADS1015 through TCA9548A I2C multiplexor
I am using a Raspberry Pi Zero 2 to talk through a TCA9548A to multiple ADS1015, each ADS1015 is on a separate SDA/SCL channel of the TCA9548A. I am able to scan all channels and see the active ...
user298907
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231
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Can an LTC4311 I2C amplifier be used along with PCA9515A I2C repeater
Can the LTC4311 (click for datasheet) be used along with the PCA9515A (click for datasheet) I2C bus repeater?
EDIT to describe my goal: I am using a RaspberryPi4 with around 1m long cables and the ...
- 377
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votes
1
answer
320
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How to connect RS232 level shifter?
I'm trying to use this:
https://www.sparkfun.com/products/449
to connect my RPi to my computer via a USB to serial device. (And eventually connect the RPi to other legacy serial devices)
My questions:
...
- 357
0
votes
1
answer
135
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All bytes become zero after a zero byte
I'm quite new to electrical engineering, so if I didn't post something that may help to solve my problem, ask for it in comments.
I wanted to connect a Raspberry Pi 4B with a board with an STM32F779 ...
- 63
1
vote
1
answer
798
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Corruption(?) of the Raspberry Pi Pico's UART characters with the C SDK
I'm making a remote controlled machine using a Raspberry Pi Pico to drive the motors and read some sensors, and a Raspberry Pi 4 to send commands to the Pico via serial and host the web interface.
I ...
- 195
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42
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BerryGSM connection through serial port
I’m looking to use the GSM module BerryGSM
https://thepihut.com/products/ozzmaker-berrygps-gsm
It says on the website that you can use the serial port instead instead of the USB interface.
I’m looking ...
- 65
0
votes
2
answers
59
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I'm losing data when my Raspberry pi talks to its USB connected Arduino
Some very simple code, which I got somewhere on the Internet
Arduino:
...
- 3
3
votes
1
answer
289
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Weird problem with usb2422 and CP2108
I've have a system consisting of a Raspberry Pi Zero W, a usb2422 USB-hub, a CP2108 Uart-to-USB converter as well as another USB device (lets call it device 2, it doesn't matter which one I plug in).
...
- 41
1
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28
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Serial commands not being flushed from Raspberry to Arduino
I have an Arduino Mega controlling a matrix of 4x4 solenoids via the GPIOs opening/closing mosfet gates used as switches.
I'm trying to send commands via Serial from a Raspberry Pi 4 to the Arduino ...
- 99
0
votes
1
answer
820
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Multiple UART devices on Raspberry Pi
I want to connect multiple devices which are communicating through UART to Rapsberry Pi3b+. Given that Raspberry has only 1 set of Tx-Rx pins, I am unable to do so. I am designing a PCB so I have the ...
- 101
0
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1
answer
83
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How to get a serial reading from an Ultrasonic Rangefinder on a Raspberry 3 B+?
I'm trying to set up a Maxbotix Ultrasonic Rangefinder (LV-EZ0) with a Raspberry Pi 3 B+.
I've tried all the tips I could find:
raspi-config
disable serial interfacing for shell, but keep it on ...
- 99
0
votes
1
answer
244
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Read serial data from unknown source using Raspberry pi
I have a fuel dispenser, which has one keypad and two displays, each display has three of 7 segment LCDs.
I want to control the fuel dispenser with a PC or a phone. The way to do this in my knowledge ...
0
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72
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Serial communication between raspberry and laptop not giving right values
I want to communicate between a Raspberry Pi 3 model B and a laptop using a USB to RS-232 cable and this RS-232 to 3.3V TTL converter via the serial module in Python:
GND is connected to board pin #6
...
- 151