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by Drekoooo
Mon Jul 12, 2021 6:36 pm
Forum: General discussion
Topic: heartbeat sensor for pi
Replies: 4
Views: 236

Re: heartbeat sensor for pi

It might help if you gave more details, eg pulse monitor model and how you have connected it. the adc i used is https://www.flyrobo.in/mcp3008-ic-module?search=MCP3008&description=true pulse sensor used https://www.flyrobo.in/pulse-sensor-heart-rate-detector?search=pulse%20 i have connected the...
by Drekoooo
Mon Jul 12, 2021 5:08 pm
Forum: General discussion
Topic: heartbeat sensor for pi
Replies: 4
Views: 236

heartbeat sensor for pi

i want to measure the heartbeat using the pulse sensor. i connected the pulse sensor to a mcp3008 adc and the pi. this is the code i used from pulsesensor import Pulsesensor import time p = Pulsesensor() p.startAsyncBPM() try: while True: bpm = p.BPM if bpm > 0: print("BPM: %d" % bpm) else...
by Drekoooo
Mon Jul 12, 2021 1:13 am
Forum: General discussion
Topic: one wire ds18b20 showing no output
Replies: 2
Views: 146

one wire ds18b20 showing no output

0 i connected a one wire ds18b20 temperature sensor to my pi 3b+.this is the code import time from w1thermsensor import W1ThermSensor sensor = W1ThermSensor() while True: temperature = sensor.get_temperature() print(temperature) time.sleep(1) and this is the error i get Raise NoSensorFoundError(&quo...
by Drekoooo
Wed Jul 07, 2021 9:55 am
Forum: General discussion
Topic: motor response based on keypad
Replies: 1
Views: 81

motor response based on keypad

i want to make my dc motor to rotate only when a number is pressed on a 4x3 matrix keypad . for example if i press the number 9 and then press the # key then only the motor should rotate .im using pad4pi to connect the keypad to the pi. could you help me out with the code please. this is my motor co...
by Drekoooo
Thu Jun 17, 2021 6:02 pm
Forum: General discussion
Topic: stepper motor and l293d motor driver
Replies: 1
Views: 114

stepper motor and l293d motor driver

I want to connect a stepper motor to the pi through a l293d motor driver .could you help me out regarding the code .its a 4 point stepper motor I removed the stepper motor from my internal dvd rom .thank you
by Drekoooo
Tue May 18, 2021 7:21 am
Forum: General discussion
Topic: help regarding 4x3 matrix keypad
Replies: 3
Views: 183

Re: help regarding 4x3 matrix keypad

drgeoff wrote:
Sat May 15, 2021 9:13 am
pad4pi only reads the keypad. What you do with what it returns is up to you. You have revealed nothing about your code.
i am doing a project where i require the user to set the value which is then given to the Pi and after some Processing the pi makes the motor rotate
by Drekoooo
Sat May 15, 2021 8:04 am
Forum: General discussion
Topic: help regarding 4x3 matrix keypad
Replies: 3
Views: 183

help regarding 4x3 matrix keypad

i am using the pad4pi library function to operate the 4x3 matrix keypad, but i can only display a single number at a time .can anyone guide me on how to change that i want to take in 2 digit numbers from the keypad. I also want to use to # key to work as a enter key .thank u in advance
by Drekoooo
Tue Mar 09, 2021 9:55 pm
Forum: General discussion
Topic: body temperature measurement
Replies: 8
Views: 690

Re: body temperature measurement

The ds18b20 comes as either a transistor form factor (to-92) or with a stainless capsule or waterproof stainless capsule, both with 1m connecting leads installed and requires no calibration. It uses the "one-wire" bus. It can be connected to the small form factor arduinos, RPis, NodeMCU, ...
by Drekoooo
Tue Mar 09, 2021 9:50 pm
Forum: General discussion
Topic: body temperature measurement
Replies: 8
Views: 690

Re: body temperature measurement

Look up GY-906 MLX90614 for a pyrometer on PCB. It has an I2C interface. Calibrating it is mandatory: My forehead currently has 33.4 °C, so there will be an offset. Hope you don't need it accurate to a full degree, as I presume there are quite some variations accross humans. by using the MLX90614 w...
by Drekoooo
Mon Mar 08, 2021 4:54 pm
Forum: General discussion
Topic: body temperature measurement
Replies: 8
Views: 690

body temperature measurement

could you guide me in choosing a suitable sensor to measure the body temperature of a person .i want to measure the temperature and display it on a lcd .
by Drekoooo
Mon Dec 14, 2020 12:04 pm
Forum: General discussion
Topic: connecting 2 hardware components to i2c
Replies: 4
Views: 170

connecting 2 hardware components to i2c

i have connected my 20x4 lcd using an i2c MCP23008 and a logic shifter. i also want to connect a 4x3 keypad to my pi can i connect it using the same i2c if so how can i do that ,do i need to connect any extra components ?? is there a library available for this
by Drekoooo
Mon Nov 23, 2020 11:03 am
Forum: General discussion
Topic: reading 2 analog signals at the same time and displaying it
Replies: 4
Views: 201

reading 2 analog signals at the same time and displaying it

i want to connect 2 analog sensors they are pulse sensor and temperature sensor i will be checking the heartbeat of a person and the persons body temperature and then display on a LCD since these sensors are analog i will be connecting it to a ADC what i wanted to know is will i be able to display b...
by Drekoooo
Mon Nov 23, 2020 10:58 am
Forum: General discussion
Topic: interfacing 20x4 lcd to PI
Replies: 6
Views: 327

Re: interfacing 20x4 lcd to PI

If a beginner with pi and electronics a good way in is to find an existing project documented in detail on the web that matches your requirements or comes very close and initially copying it. then when working on the breadboard as expected you should have a good enough grasp to start looking up how...
by Drekoooo
Mon Nov 23, 2020 10:57 am
Forum: General discussion
Topic: interfacing 20x4 lcd to PI
Replies: 6
Views: 327

Re: interfacing 20x4 lcd to PI

The library I would recommend to drive your 20x4 LCD , assuming it a standard HD44780 controller, Is RPLCD , https://pypi.org/project/RPLCD/ , https://rplcd.readthedocs.io/en/stable/ It supports driving the display directly using the gpio pin and via I2C backpacks assuming you use one of the ones i...
by Drekoooo
Thu Nov 19, 2020 6:43 am
Forum: General discussion
Topic: interfacing 20x4 lcd to PI
Replies: 6
Views: 327

Re: interfacing 20x4 lcd to PI

What language or tools do you want to use? if python there are lots of guides and how to s https://www.google.com/search?q=python+pi+20+x+4+lcd&rlz=1C1CHBF_en-GBGB920GB920&oq=python+pi+20+x+4+lcd&aqs=chrome..69i57j0i8i13i30i457.8160j0j7&sourceid=chrome&ie=UTF-8 using a lcd with ...
by Drekoooo
Thu Nov 19, 2020 2:15 am
Forum: General discussion
Topic: interfacing 20x4 lcd to PI
Replies: 6
Views: 327

interfacing 20x4 lcd to PI

i want to connect a 20x4 lcd to my pi 3b+ is there a library function available that i can use ??also is it better if i use a i2c board along with the Lcd
by Drekoooo
Thu Oct 15, 2020 8:38 pm
Forum: General discussion
Topic: breathing sensor for raspberry pi
Replies: 5
Views: 349

Re: breathing sensor for raspberry pi

For a personal project I would look into the various ways airflow is measured in the medical field or in physiology labs (e.g. testing athletes). 'Thermistor airflow sensors' which measure inhalation and exhalation air temperatures, CO2 sensors (from which you can also calculate airflow) or even an...
by Drekoooo
Thu Oct 15, 2020 8:14 pm
Forum: General discussion
Topic: breathing sensor for raspberry pi
Replies: 5
Views: 349

Re: breathing sensor for raspberry pi

If this is a "life safety" project, I suggest you get a medically certified monitor and only use the Pi as a backup recording and alert device. Pis are not rated for critical medical usage. They are consumer grade devices. its for my college project which is called anesthesia machine for ...
by Drekoooo
Thu Oct 15, 2020 5:49 pm
Forum: General discussion
Topic: breathing sensor for raspberry pi
Replies: 5
Views: 349

breathing sensor for raspberry pi

i want to use a breathing sensor for my project which ill be connecting to a raspberry PI but i cant find any suitable sensor .i need to measure the air flow of the person and it has to keep track of the breathing all the time . this value i want to display on a lcd could you help me out please
by Drekoooo
Fri Sep 11, 2020 10:04 am
Forum: Automation, sensing and robotics
Topic: Help regarding use of raspberry Pi 4 and angle of servo motor
Replies: 1
Views: 181

Help regarding use of raspberry Pi 4 and angle of servo motor

Hello I just started using raspberry pi .I have no knowledge about it but I'll be doing my final year project which uses raspberry pi .I want to know if I'll be able to control the servo motor angle using raspberry pi for example if I want to rotate it just for 40° or 70° is it possible to do that u...

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