Questions tagged [network]
The network tag has no usage guidance.
24 questions
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Problem with floating of AnalogRead
For a university Lab course i have to realize a UPS unit with a internal LiPo battery . The unit uses as battery charger a buck converter
I have only a problem with the battery charger (buck converter)...
- 11
2
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1
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164
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Which sensor bus best to use?
I am working on a project which requires a dozen VL53l0X I2C-TOF sensors to be polled by one master MCU over a few meters of cable.
Thus, I decided to accompany each TOF by an Atmega8 acting as a ...
- 41
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1
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526
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Trouble with ESP8266 on Eero network
I have an ESP8266 Node MCU and am learning to use its wifi capabilities. In my home I have a router provided by my ISP that runs a network we'll call 'network1'. I also have an Eero mesh network that ...
- 121
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I want to make two arduino to communicate over different wifi. Is that possible?
I want to make any 2 Arduino module from different places to communicate over wifi. I really need to know if it possible? If yes, advice me more about it. I want send data from sensor module from one ...
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2
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1k
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Understanding NRF24L01 specifications
I was reading this tutorial about the NRF24L01 and came across a few terms which I did not clearly understand.
It uses the 2.4 GHz band
Does this refer to the frequency of the EM waves that the ...
- 67
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2k
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Send only one packet from one ESP32 to another ESP32 without acknowledgment
I have a network consisting 10 slaves and one master. I am using ESP-NOW to send the messages between the nodes. All of the nodes are within close proximity. I do NOT need a mesh network to reach all ...
- 938
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4k
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ESP32 send data to another ESP32 without establishing a wifi connection
Originally I was creating a project consisting of the Atmega328P and NRF24L01 to create multiple arduinos that could talk to each other. Basically I was creating something like this:
As the network ...
- 938
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ESP-NOW host not receiving data
I'm trying to set up a network like the following:
|Host| <-------> |Node x 3|
I want to have a two-way connection between a host and each node, but each node cannot communicate with other nodes....
- 31
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361
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SIM900A network connection
I can't connect to the network.
Hardware used: Arduino UNO and SIM900A GSM module
Tutorial used: https://www.instructables.com/id/GSM-SIM900A-With-Arduino/
Sim card used: Orange (I set it on 2G ...
- 11
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2
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226
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How to change wifi credentials of multiple ESP8266 together
I need to change WiFi credentials of multiple ESP8266 in one go, without needing to change passwords for each of them individually. I know there is a WiFiManager library, which makes your ESP8266 ...
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1
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aRest.io - how does it work?
With aRest.io you are able control your Arduino/Esp from all over the world - but how?
In the Client SourceCode (found here) you only find the PubSubClient, which is an MQTT client.
I'm assuming:
...
- 101
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1
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SIM800L is not registering on network
I'm testing SIM800L module by registering to network manually and I'm getting an error message.
Here are the commands I tried.
AT+CSQ
+CSQ: 31,0
OK
AT+CBAND?
+CBAND: EGSM_MODE,ALL_BAND
OK
AT+...
- 203
1
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0
answers
63
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Arduino Uno Wifi R2 Mesh Network
I currently have a project that uses a few Xbee S1 modules to report temperature measurements to a computer. I'm thinking about reworking the project to use the newer Arduino Uno WiFi R2 boards.
Is ...
- 11
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Sniffing thermostat protocol CC1101 868MHZ [duplicate]
I am using this libary from github:https://github.com/veonik/arduino-cc1101
With this example code. I will try to read the data which is send from a 868Mhz thermostat. I am using a arduino Mega and ...
- 121
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CC1101 sniffing 868Mhz Protocol from thermostat
Hello i buyed a cc1101 because I want to sniff thermostat protocol which works with 868 Mhz.
I found this repo https://github.com/veonik/arduino-cc1101.
I tried to download the repo and include the ...
- 121
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2
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472
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Arduino network with minimum wiring
For a parking management system I am going to create an Arduino network.
An Arduino with an ultrasonic sensor will be placed above each parking space. If car is parked at specific location Arduino ...
- 31
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1
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12k
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Testing network of SIM900A
Do I have to connect RX and TX of SIM900A with any pins (say TX, RX of Arduino) for network purpose? Shouldn't the network status LED blink slower after connecting the power sources with SIM900A?
- 123
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1
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317
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Multiple node network communication over I²C [closed]
I am working on a project where I want to send data from and to different Arduinos on a network. At the moment I²C seems the best option for my needs since I can specify where to send the data. But ...
- 113
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2
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468
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Need to "Extend" a Arduino Digital Signal
Here's the scenario:
We have 1 arduino uno accepting DMX and converting that to a signal that is being sent out digitally (PIN 3). The digital signal then goes to several IR LED senders that control 3,...
- 13
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2
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2k
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Is there a way to update Arduino uno Over The Air [duplicate]
I have the Arduino uno with a Ethernet W5100 Shield and would like to remotely sketches. Is there a way to update Arduino uno over the air? If not, is there a wired network arduino solution that ...
- 155
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1
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1k
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How do I send tweets with flame sensor and ESP8266?
I want to send tweets with flame sensor and ESP8266. My flame sensor is digital. I think everything is good but it doesn't send.
This is my code:
#define ag_ismi "SSID"
#define ag_sifresi "PASSWORD"
...
- 19
1
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1
answer
3k
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Problem with using multi-node nRF24l01+ with Arduinos
I have 3 nodes in my system. One centralNode and two sensor nodes (right and left).
Sensor nodes transmit data to the centralNode and receive from it.
centralNode may transmit to both nodes and ...
1
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1
answer
770
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RF24 Network and Payload
i struggle to figure out the max payload for the RF24 Network library without payload fragmentation.
It uses a NetworkHeader with the Attributes from_node, to_node, id, type and reserved.
This must be ...
- 113
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37
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What is the quickest and simplest way for two Arduinos, with network shields, to communicate?
I have two Arduinos, each with a network shield. What is the quickest and simplest way to connect a cat5 cable between these two Arduinos and have them exchange strings?
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