All Questions
16
questions
-1
votes
1
answer
195
views
Program to test i2c communication with serial prints breaks RP pico
Background:
I am trying to test the communication of 2 raspberry pi pico using i2c. Firstly, i sent a string from one and receive it from the second one. Both of them print the results in the serial ...
1
vote
1
answer
2k
views
PN532 with Raspberry Pi Pico
I have PN532 NFC Module that looks like this
I am trying to connect this NFC Module with Pico, but I have no luck in finding library that allows me this. What can I do to control it? Can you ...
- 23
1
vote
0
answers
287
views
What is the minimum I2C baudrate and pullup resistance for the Raspberry PI 4
The baudrate for the RPI can definitely be set in the range of 100-400kHz by editing the /boot/config.txt:
dtparam=i2c_arm=on
dtparam=i2c=on
dtparam=i2c_baudrate=10000
Following this tutorial.
But I ...
- 197
4
votes
1
answer
1k
views
I2C baudrate in Raspberry Pi, depends on arm core frequency
I'm using a Raspberry Pi 3, with a Raspberry Pi OS (arm64) official image to communicate with a PMBus compatible device (rpb1600-48 battery charger).
I was experiencing communication problems. ...
3
votes
0
answers
1k
views
Controlling a laser rangefinder via the raspberry pi
First, a disclaimer that I am an electronics newbie. I got my hands on a laser rangefinder which looks very similar to this:
On the top left corner, there are two sets of pins. The first set has ...
- 31
2
votes
1
answer
2k
views
Need advice for connecting multiple arduinos to raspberry pi
I have a project in hand where I need to connect 5 arduinos as slaves to Raspberry Pi. Load Cells, Reed Switch, Solenoid lock will be connected to each of the arduino. The arduinos need to send the ...
- 21
0
votes
1
answer
432
views
Serial connection with raspberry pi to arduino, works only once and needs a hard reset every time
so I am working on a project where I have to connect an arduino to the raspberry pi through serial and then transfer the input from the raspi to another I2C device. So, just to test things out and ...
- 11
0
votes
1
answer
270
views
Conversion from SPI for long distance communication
I'm using a number of MCP3208 ADCs to read from remotely-mounted analogue sensors. I'm planning on having a remote PCB which contains the power/ground rails, voltage dividers (where required), ...
- 133
0
votes
1
answer
725
views
ads1115 config register hex numbers
I need some help on the ADS 1115 config register setting with i2cset and i2cget
I dont understand the how to set the ads1115 to continious mode and then read it with i2cget.
There is the default ...
- 41
4
votes
1
answer
1k
views
Read synchronous serial communication with Raspberry Pi
I am evaluating different Linux Plattforms and would like to know:
Is it possible to read synchronous serial data at 300 to 350 kbaud with any Raspberry Pi?
I am getting the data as RS422. Thus I ...
1
vote
1
answer
7k
views
Serial vs I2C speed
I'm interested in knowing which is faster, Serial communication or I2C.
So far I have the following two snippets of information that I have found while doing a bit of research.
Serial communication
...
- 113
2
votes
1
answer
592
views
Sending data to a 1602 LCD in Mono C# over i2c
How would I be able to put information on a 1602 lcd over SPI? I was thinking that it may be possible to write to the pin (like a file) with all the hex codes of the letters etc. or similar.
I'm a ...
- 149
1
vote
1
answer
777
views
Choosing an OLED / LCD Dispaly
I'm building a simple device where my Raspberry Pi talks to Google Calendar, and displays information about where I'm at on my office door. My code is all in Python
It was simple until I started ...
- 111
14
votes
3
answers
57k
views
Safest way to connect Raspberry Pi to Arduino Uno R3
I am working on a robot using an Arduino Uno R3 and I wanted to have the ability of controlling the Arduino wirelessly, like stopping the Arduino without having to pull the power-plug every time.
I ...
- 3,011
4
votes
3
answers
2k
views
Analog input to the PI
I have a bit of a specialized question for you. Recently I got my Pi up and running, and am amazed at what it can pull off. But I want more.
I want to be able to record the output from an ...
- 143