Questions tagged [raspberry-pi]

For questions related to using the Raspberry Pi in IoT applications or solutions. Questions about a software or hardware issue with Raspberry Pi are usually more appropriate at Raspberry Pi Stack Exchange. Programming language questions are usually more appropriate at Stack Overflow.

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Connecting air conditioner to Apple's HomeKit

I'm planning to connect my air conditioner to Apple's HomeKit app. At first I searched for ways to do it, but I couldn't find a solution that would work for that project. As I've found, Apple ...
7
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0answers
352 views

Power Consumption Benchmarks of Different Android Things SoMs?

I'd be grateful if anyone could publish some results of some (even one is good) Android Things compatible SoMs (System On Modules, see here) power consumption benchmark (data for idle, and under load, ...
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2answers
77 views

Decoupling data fetching from processing and publishing

I am working on a project that involves raspberry pi and the accelerometer sensor ADXL355. The raspberry's responsibility is to fetch the data from the sensor, filter only useful data and publish it ...
4
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0answers
36 views

Alarm system built with raspberry + sonoff rf bridge

I am developing a personal project at the end of which I should be able to create a homemade alarm system. All this should be protected against voltage drops/failures, the whole circuit will be inside ...
4
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0answers
239 views

MOXA Modbus with Raspberry Pi – Can't get slave to work

I have two Moxa modbuses that I have daisy-chained together, and then connected to my network's ethernet port. The modbuses are hooked up to a control board with LED lights for the coils and buttons ...
4
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0answers
272 views

Sending temperature sensor's data to Kaa-IoT platform via 6LoWPAN

I want to set up some sensors in different places, which are wire connected to my development board, Raspberry PI or Arduino. I'm going to send the data wirelessly but without using WiFi protocol, ...
3
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0answers
196 views

How to handle AWS IoT with a Raspberry Pi to connect to my Node.js API?

I created an API in Node.js to connect my iOS app to my database. In my app, I have a button to start an action which will be connected to my Raspberry Pi. This action will happened after ...
2
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0answers
43 views

Are micron feature-size LIDAR sensors available?

I want to scan various writing materials such as card, cloth, various grades and qualities of paper, wood, even hemp-based or other writing surfaces. The reason is I wish to write a GPU-accelerated ...
2
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1answer
47 views

Wheel skid detection

I am working on a project which sensed four speed by using hall sensor attached to wheel by using raspberry pi. I have wrote program for that only issue with that it gives fairly good results when ...
2
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0answers
55 views

ESP32 transmit data over BLE VS Wifi

I am working on a project where I have got an ESP32 device (Wifi & Bluetooth), which reads data from some sensors, such as temperature and soil moisture (outdoor environment). The data is then ...
2
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0answers
47 views

How to decouple the hardware components

Is it possible to make the connections between the Raspberry Pi , Motor Controller and Stepper Motor connected wirelessly? As you can see above, I have 1 Pi (connects to the Motor Controller), 1 ...
2
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0answers
37 views

Secure External Network Control of a MQTT Server on a Raspberry Pi

I'm trying to build a home automation system using MQTT. I'm using a Raspberry Pi as the broker. Everything works great as far as controlling it when connected to the same network. But I want to have ...
2
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0answers
47 views

In what form should I store data in the cloud for a single device?

This question looks similar to What IoT services are available for storing/sending/publishing generic data in the cloud? though I haven't found a suitable answer yet. I'm building a light/temp/...
2
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0answers
54 views

Google Home API Integration

I have a project that I want to start on that involves Google Home and a custom light system. I currently control some lights in my apartment VIA a website but I want to be able to control the lights ...
2
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0answers
48 views

Re-link Google Home Account with Assistant Pi on Raspbian

I installed the Google Assistant on a Raspberry Pi 3+ and it works perfectly. I see the Raspberry in my Google Home App and I can configure some features. However, by mistake, I have unlinked from ...
2
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0answers
81 views

Connect IoT devices to AWS

I have a Moxa I/O Remote connected to a Raspberry Pi running some scripts through pymodbus. I am using MQTT to publish & receive changes/requests in the I/O remote to a web service. The idea is ...
1
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0answers
32 views

Who can help me with the LIRC config for AEG Hood with Hob2Hood functionality?

Has someone already had success in retrieving the LIRC codes for AEG Hood with Hob2Hood functionality? I've allready found the following codes: FAN_1 0xE3C01BE2 FAN_2 0xD051C301 FAN_3 ...
1
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0answers
27 views

Getting a custom SBC board developed to spec

I need to design a single-board computer to the following specs. Can anyone please suggest companies that could build this economically? Two full-size (USB-A) USB 3 ports A CPU fast enough to handle ...
1
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0answers
350 views

MH-Z19B span point calibration: Anyone managed so far?

According to datasheet you can span point calibrate the MH-Z19B CO2 sensor. https://www.winsen-sensor.com/d/files/infrared-gas-sensor/mh-z19b-co2-ver1_0.pdf E.g. with 0xFF 0x01 0x88 0x07 0xD0 0x00 ...
1
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0answers
278 views

How to reconnect to MQTT server after CONNECTIONLOST?

I'm using a Raspberry Pi 3B+ with SIM7600X 4G HAT for communication with Python. I want to connect to MQTT server to receive messages via writing MQTT commands directly to the serial port of the ...
1
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0answers
64 views

Is there any way to use scanner front panel to scan to linux?

I have a EPSON WF-3540 MFP. I want to use it to scan files directly to my NAS. As this device does not support scan to FTP or any other network share, I thought of using a lightweight linux device (e....
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0answers
154 views

How to connect Raspberry PI 3 Model B to BLE Motion Sensor

I'm trying to connect my PIR motion sensor using gatttool and is giving me this error: pi@raspberrypi:~ $ sudo gatttool -t random -b B8:7C6F:1A:D8:24 -I [B8:7C6F:1A:D8:24][LE]> connect Attempting ...
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0answers
560 views

Unable to configure nrf24l01+ with Raspberry Pi 3 B+

I have a new Raspberry Pi 3 B+ model. I also bought a few nrf24l01+ modules. I hooked up one of the nrf24l01+ modules to my RPi with these connections: RPi | nrf24l01+ -------|---------- 3.3 ...
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0answers
96 views

Change Cloud URL using SimpleLink App for TI CC3200 SensorTags

I have some TI CC3200 Sensortags WiFi which I want to use out-of-the-box (without programming anything) Purpose I want to send the sensor information from the sensortags to an MQTT broker running on ...
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0answers
7 views

How to connect a serial-device to OpenHab when using it as Snap in Ubuntu Core and RaspberryPi3

I'm configuring a rpi3 with Ubuntu Core Appliance OpenHAB (version 3.1 is the latest version of OH). When I connect my usb adapter for z-wave (z-stick gen5), Ubuntu recognise the USB and serial line ...
0
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0answers
73 views

What Kinda of Trigger to Use for a System with Two Raspberry-Pi's

I have a system like the image shows. Now instead of it being connected with an Ethernet cable, it is going to be wireless. The SBC's represent Raspberry Pi's. SBC0 reads the data all the time and is ...
0
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0answers
30 views

Does my local home automation system have to use secure communication?

I am creating (programming) my own home automation system. It will consist of 3 apps: Client app, which will communicate (update) database in the cloud Server on Raspberry pi, which will listen to ...
0
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0answers
22 views

Mqtt node connected to multiple router

I have NodeMcu which I wanted to work as MQTT node, and I will have 50 nodes which will connect to routers(total 3) where these routers are connected to the main router through LAN. For a broker, I ...