Internet of Things (IOT) Archives

Temperature monitoring and device control system over WiFi

By Paulsin
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Electronic Modules, Electronics, ESP-12F, General Blog, Integrated Circuit chips, Internet of Things (IOT), Temperature monitoring and device control over WiFi
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542 Views
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Jan 07 , 2020

Program. Tested on Arduino version 1.8.8.

Upload the following program to your NodeMCU. It is a direct communication between your mobile device and NodeMCU. So, after uploading the program, search for available WiFi devices on your Android device. In the available WiFi devices, you could see a device named Cooling-Fan-Controller. Connect to that device by using the password given at the beginning of program. Then open a web browser on your Mobile device and open 192.168.4.1.

By Paulsin
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7-digit seven segment display module, 74HC595, Common cathode seven segment displays, Displays, DIY Electronic Boards, Electronic Modules, Electronics, ESP-12F, ESP-12F IOT module, General Blog, Hobby Electronic kits, Integrated Circuit chips, Internet of Things (IOT), Seven Segment Displays, Shift register module
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1254 Views
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Part 4 of : 7-digit seven segment display using ESP-12F IOT module through 32-bit serial-in parallel-out shift register module

Jul 02 , 2019

Modules required

ESP-12F IOT module
32-bit serial-in parallel-out shift register module
connector module
7-digit seven segment display module

Reference blogs

ESP-12F IOT module programmer circuit and explanation : https://haberocean.com/2019/05/esp-12f-iot-module-programmer-circuit/

32-bit serial-in parallel-out shift register module using ESP-12F IOT module : https://haberocean.com/2019/05/32-bit-shift-register-module-using-esp-12f-iot-module/

Control the outputs of ESP-12F IOT module from android app : https://haberocean.com/2019/06/part-3-of-control-the-outputs-of-esp-12f-iot-module-from-an-android-app/

Video demonstration

Upload the following program to your ESP-12F IOT module.

By Paulsin
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DIY Electronic Boards, Electronic Modules, Electronics, ESP-12F, ESP-12F IOT module, General Blog, Hobby Electronic kits, Integrated Circuit chips, Internet of Things (IOT)
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622 Views
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0 Comment
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Part 3 of : Control the outputs of ESP-12F IOT module from an Android APP

Jun 10 , 2019

Upload the following program to ESP-12F IOT module. Before starting this, read my previous blog on the basics of programming ESP-12F IOT module.

#include <ESP8266WiFi.h#include <WiFiClient.h#ifndef APSSID #define APSSID "PaulESP" #define APPSK "paulsin91@" #endif // Variable to store the HTTP request String header; /* Set these to your desired credentials. */ const char *ssid = APSSID; const char *password = APPSK; int ledPin = 13; // GPIO13 WiFiServer server(80);

By Paulsin
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74HC595, DIY Electronic Boards, Electronic Modules, Electronics, ESP-12F, General Blog, Hobby Electronic kits, Integrated Circuit chips, Internet of Things (IOT), Shift register module
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1034 Views
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0 Comment
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Part 2 of : 32-bit shift register module using ESP-12F IOT module

May 27 , 2019

Important : In the ESP-12F IOT module, jumper should be placed across 5V and COM as encircled in the following image. Otherwise, high voltage may destroy your 32-bit shift register module.

In the previous blog, we saw the circuit for programming ESP-12F IOT module.

Product links

CP2102 USB 2.0 to TTL UART SERIAL CONVERTER : https://robu.in/product/cp-2102-6-pin/

ESP-12F IOT Module :

By Paulsin
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DIY Electronic Boards, Electronic Modules, Electronics, ESP-12F, General Blog, Hobby Electronic kits, Integrated Circuit chips, Internet of Things (IOT)
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1172 Views
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0 Comment
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May 27 , 2019

Circuit is done as shown in the diagram.

Product links

CP2102 USB 2.0 to TTL UART SERIAL CONVERTER : https://robu.in/product/cp-2102-6-pin/

ESP-12F IOT Module : https://haberocean.com/product/iot-module-using-esp-12f/

Connect “CP2102 USB 2.0 to TTL UART serial converter” to your PC and turn on the DC power source. Open Arduino IDE. Open the Blink program from the Examples.