Linked Questions
10 questions linked to/from PH-4502C pH Sensor Calibration and ADC using MCP3008, PCF8591, and ADS1115
3
votes
2
answers
8k
views
Rpi to Arduino Serial UART Communication Tutorial
I'm trying to connect my Arduino to my Raspberry Pi using the GPIO pins. I understand that the Pi uses a 3.3V signal while the Arduino uses a 5V signal so I bought a bi-directional logic level ...
- 149
0
votes
2
answers
2k
views
Reading only 0 from ADC using RPi SPI
Everytime I try to read analog channel 0 from ADC, it only prints 0. I am confused why. I shorted MISO and MOSI on my RPi to check SPI send/receive and it was working. But if I test it after properly ...
-1
votes
1
answer
1k
views
Response to a incoming call using python script
I am trying to implement a system using Raspberry-pi and SIM-800 modules. Now I can see incoming calls from my python script, but it can not parse data.
import serial
serialport = serial.Serial("/...
1
vote
2
answers
1k
views
MCP3008 with photoresistor, analog to digital, noisy readings
I am trying to read values from a photoresistor. I would like to be able to read the 'level' of light, not just a binary signal. So I bought an MCP 3008 analog to digital converter, but I am running ...
- 199
0
votes
2
answers
2k
views
Reading analog value Raspberry Pi
I am a newbie with the Raspberry Pi.
I want to measure Temperature Reading in 12/16 bit resolution. can someone guide me how CKT should be designed and How can read value using software.
usually ...
- 37
1
vote
0
answers
2k
views
Analog PH meter PH-4502C unbootable pi 3
I have the following hardware
Raspberry pi 3 B+
8 Channel relay
DHT11 temperature and humidity sensor
PH-4502C DIY MORE analog PH meter
MCP3008 ATD
Keyestudio TDS Meter V1.0
So far I got everything ...
2
votes
1
answer
623
views
What is the correct hardware required to connect multiple analog sensors to a Raspberry Pi 4?
I've been an avid Bonsai enthusiast for some time, and have always wanted to automate some of the day to day tasks (and get some data logging in the process).
I'd like to be able to detect:
soil ...
- 141
1
vote
1
answer
917
views
How can Rpi connect to and read the DIY PH-4502C pH Sensor?
How can Rpi connect to and read the DIY PH-4502C pH Sensor?
- 11
1
vote
1
answer
434
views
Can't read the analog channels from my ADC board using raspberry pi I2C
It seems like the ADC I am using does not provide instructions about how to communicate with the pi using the I2C interface. Does that mean I can't use I2C? I have the register addresses for all the ...
1
vote
1
answer
882
views
How to use Rpi [python] to read [SPI MCP3008] ADC of a [water] tank level sensor?
Does anyone have any ideas on how I can use RPI with ADC to measure a tank level sensor which has a range of only 20 to 200 ohm.
- 11