Electronics Archives

ESP32, ESP-IDF program for Internet radio using VS1003 and ESP32

By Paulsin
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Electronic Modules, Electronics, ESP32, General Blog, VS1003
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229 Views
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0 Comment
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Jan 12 , 2021

/* HTTP GET Example using plain POSIX sockets This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */ ///////////////////////////////////////////////// ///////// Working frequenzy : 80 MHz //////////// ///////////////////////////////////////////////// ////////////////////////////////////////////////////// ///// VS1053 - ESP32 Connections ////// ////////////////////////////////////////////////////// //////////// VS1053_CS - ESP32 G5 /////////////// //////////// VS1053_DCS - ESP32 G16 /////////////// //////////// VS1053_DREQ - ESP32 G4 /////////////// //////////// VS1053_SCLK - ESP32 G18 /////////////// //////////// VS1053_MOSI - ESP32 G23 /////////////// //////////// VS1053_MISO - ESP32 G19 /////////////// //////////// VS1053_XRST - ESP32 EN /////////////// ////////////////////////////////////////////////////// #include <string.h#include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "esp_system.h" #include "esp_wifi.h" #include "esp_event.h" #include "esp_log.h" #include "nvs_flash.h" #include "protocol_examples_common.h" #include "esp_pm.h" #include "lwip/err.h" #include "lwip/sockets.h" #include "lwip/sys.h" #include "lwip/netdb.h" #include "lwip/dns.h" #include "driver/gpio.h" /* Cosmos radio */ #define WEB_SERVER "radiostreaming.ert.gr" #define WEB_PORT "80" #define WEB_PATH "/ert-kosmos" /* Sehion radio */ //#define WEB_SERVER "199.195.194.140" //#define WEB_PORT "8012" //#define WEB_PATH "/stream" #define misoPin 19 #define mosiPin 23 #define clkPin 18 #define csPin 5 #define dcsPin 16 #define dreqPin 4 #define vs1003_chunk_size 32 static const char *REQUEST = "GET " WEB_PATH " HTTP/1.1\r\n" "Host: "WEB_SERVER":"WEB_PORT"\r\n" "Connection: close\r\n" "\r\n";

By Paulsin
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Electronic Modules, Electronics, ESP32, General Blog, VS1003
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826 Views
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0 Comment
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Jan 01 , 2021

Arduino program for Internet radio using VS1003 and ESP32.

#include <VS1053.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #ifdef ARDUINO_ARCH_ESP8266 #include <ESP8266WiFi.h> #define VS1053_CS D1 #define VS1053_DCS D0 #define VS1053_DREQ D3 #endif ////////////////////////////////////////////////////// ///// VS1053 - ESP32 Connections ////// ////////////////////////////////////////////////////// //////////// VS1053_CS - ESP32 G5 /////////////// //////////// VS1053_DCS - ESP32 G16 /////////////// //////////// VS1053_DREQ - ESP32 G4 /////////////// //////////// VS1053_SCLK - ESP32 G18 /////////////// //////////// VS1053_MOSI - ESP32 G23 /////////////// //////////// VS1053_MISO - ESP32 G19 /////////////// //////////// VS1053_XRST - ESP32 EN /////////////// ////////////////////////////////////////////////////// #ifdef ARDUINO_ARCH_ESP32 #include <WiFi.h>

By Paulsin
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Electronic Modules, Electronics, General Blog, Traffic Signal Light
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856 Views
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0 Comment
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Traffic light controlled through NodeMCU from mobile device over WiFi

Aug 08 , 2020

Circuit is done as shown in the diagram. Download trafficLight library from the following link. Unzip and paste the downloaded library to Arduino libraries folder. Restart Arduino IDE and open the example program from File -> Examples -> trafficLight -> trafficLight. Upload the program to your NodeMCU. Program compiled and tested on Arduino-1.8.12.

By Paulsin
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4 digit UP counter module using CD4026, Electronic Modules, Electronics, General Blog
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349 Views
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0 Comment
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Motion counter using PIR motion sensor and 4 digit UP counter module using CD4026

Aug 07 , 2020

Circuit is done as shown in the diagram.

Watch the video demonstration to see the working.

By Paulsin
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32-bit serial-in parallel-out shift register module using 74HC595, Electronic Modules, Electronics, General Blog
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474 Views
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0 Comment
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Cascading two 32-bit shift register modules using Arduino UNO

Aug 06 , 2020

Cascading will help you to create multiple outputs. Similarly, you can cascade more modules.

Purchase the module from https://haberocean.com/product/32-bit-serial-in-parallel-out-shift-register-module-using-74hc595/

Upload the following program to Arduino UNO. Change the value in customDelay() function to change the speed of running LED.

/* Shift Register Example Turning on the outputs of a 74HC595 using an array Hardware: * 74HC595 shift register * LEDs attached to each of the outputs of the shift register */ //Pin connected to ST_CP (12) of 74HC595 int latchPin = 12;

By Paulsin
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32-bit serial-in parallel-out shift register module using 74HC595, Electronic Modules, Electronics, General Blog
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523 Views
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0 Comment
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32-bit shift register module using 74HC595 controlled using Arduino UNO

Aug 06 , 2020

Here, we will see the circuit to interface a 32-bit serial-in parallel-out Shift register module using Arduino UNO. Shift register module is powered from Arduino UNO.

This module will help to create 32 digital outputs from only 3 digital pins of Arduino. Purchase the module from https://haberocean.com/product/32-bit-serial-in-parallel-out-shift-register-module-using-74hc595/. This module can be used in applications where more digital outputs are required such as LED cube, LED matrix etc.

Upload the following program to Arduino UNO.

By Paulsin
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Electronic Modules, Electronics, Flutter, General Blog, NeoPixel Ring, NodeMCU, Softwares
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1351 Views
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1 Comment
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Neopixel ring colour picker App using Flutter through NodeMCU

May 05 , 2020

This is an App developed in Flutter to set your desired colour on Neopixel ring from a mobile App. Circuit is done as shown in the following diagram.

Download the NeoPixelColorPicker library from the following link. Unzip and copy the downloaded library to your Arduino libraries folder.

NeoPixelColorPicker Download

Restart the Arduino software and open the example program from File ->

By Paulsin
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16-bit serial-in parallel-out shift register module using 74HC595, 74HC595, DIY Electronic Boards, Electronic Modules, Electronics, General Blog, Integrated Circuit chips, NodeMCU, Shift register module
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1584 Views
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3 Comments
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16-bit shift register module using 74HC595 controlled through NodeMCU

May 03 , 2020

16-bit shift register module will help you to create 16 digital outputs from only 3 digital outputs of NodeMCU. Circuit is done as shown in the diagram. Upload the following program to your NodeMCU.

By Paulsin
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Electronic Modules, Electronics, Flutter, General Blog, NodeMCU, Softwares, Temperature monitoring and device control over WiFi
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1976 Views
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4 Comments
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Real time temperature monitoring and device control from mobile App developed on Flutter through NodeMCU

Apr 30 , 2020

A temperature monitoring system which will turn ON a device such as cooling fan, when the temperature is increased above an upper threshold. Similarly, device will be turned OFF when the temperature is decreased below lower threshold. In between lower threshold and upper threshold, device will continue its state. Circuit is done as shown in the following diagram.

Download the TemperatureMonitorAndDeviceControl library from the following link.

TemperatureMonitorAndDeviceControl-new Download

Unzip and copy the downloaded library to Arduino libraries folder.

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By Paulsin
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Electronic Modules, Electronics, Flutter, General Blog, NodeMCU, Softwares, Temperature monitoring and device control over WiFi
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762 Views
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0 Comment
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Real time monitoring of temperature from NodeMCU, on mobile App developed on Flutter

Apr 28 , 2020

This is a basic app for real time monitoring of temperature from NodeMCU. NTC thermistor is used as the temperature sensor. Mobile device will send HTTP request on every three seconds periodically to get the temperature from NodeMCU. Circuit is done as shown in the following diagram.