Internet of Things
Concise ESP8266 Code
The below code uses a nice mechanism to send commands to ESP8266 and wait for Response and print it. The…
Blog
Tutorials on Arduino, ESP8266, Raspberry Pi and sensors from the Internet of Things course, plus course notes.
Internet of Things
ESP8266 Reset & Flash Firmware
In case you want to upgrade your firmware for baud rate support (and you have the binary) or worst case…
Internet of Things
GSM Module – Call/SMS
Configuration and Testing Serial commands are available to configure and test the GSM Module. The below link provide you command…
Internet of Things
Touch Sensor – Buzzer
This program make toggle between two frequency based on whether you touched the sensor Connect buzzer’s red wire to Arduino…
Internet of Things
Analog Input – Potentiometer
A potentiometer, informally a pot, is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.…
General
Arduino – Fire alarm (LED and Buzzer)
¨Instructions: ¨Download NewPing library from here: NewPing ¨Put the “NewPing” folder in “libraries\”. ¨In the Arduino IDE, create a new sketch…
Internet of Things
ESP8266 With Blynk
Blynk Setup Download ‘Blynk’ in Playstore or App Store, install it and create a project Find the auth token of…
Internet of Things
RFID
Read the RFID Tag value and prints in the serial Monitor Pin Configuration RFID Reader Arduino…
Internet of Things
Relay controlled by Bluetooth through Ardiuno
Relay Introduction A relay is an electromagnetic switch operated by a relatively small electric current that can turn on or…
Internet of Things
Zigbee S2
Introduction The Zigbee S2 module runs native Zigbee protocol (Don’t use the S1 module which doesn’t have config). There are…
Internet of Things
Bluetooth Module (HC-05)
The HC-05 can be interfaced using the Serial protocol. Note: There are other modules which are very similar like HC-08 and they…
Internet of Things
GSM (SIM Card) Module – Interface from PC
The GSM module has the SIM900A microcontroller, a SIM slot, a 12V input, RS232 (Serial) interface and Pin outs for…