Project Overview This NodeMCU IoT project is a simple demonstration on how to send sensor data to the Internet. Powered by a NodeMCU ESP8266 microcontroller, this project is able to show temperature, humidity and atmospheric pressure to any MQTT subscriber.
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This Arduino Altimeter project features the BMP085 atmospheric pressure sensor by Bosch. Because atmospheric pressure is directly related to altitude above sea level, we can use this sensor to determine current height with respect to the height of the oceans. The height is given in meters and is displayed on …
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This Arduino motion-activated alarm features a tilt sensor for detecting movements and a piezo speaker for producing the siren sound. Introduction Basically, the tilt sensor produces a high voltage when it is tilted and a low voltage when it is placed flat on a surface. The siren is produced by …
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The BMP085 is a relatively cheap barometric pressure sensor from Bosch. I believe this sensor is kinda old (no information about this device is found on the Bosch site) and yet it’s still used today because of its simplicity. This Arduino BMP085 tutorial covers the basics of using this device …
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This is a handy Arduino programming guide for those who already have some experience with Arduino but sometimes forget about the basics.
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Test command Command Response Parameter AT OK - Reset Command Response Parameter AT+RST OK - Get firmware version Command Response Parameter AT+GMR VERSION:<Param> OK Param : firmware version WiFi mode Command Response Parameter AT+CWMODE=? +CWMODE:(1-3) OK - AT+CWMODE? +CWMODE: <Param> OK Param: 1 -- station mode (client) …
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The HC-05 is a common Bluetooth module used in many microcontroller projects. Here's a compilation of all HC-05 Bluetooth AT Commands. For beginners, see Arduino Bluetooth.
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A reference of Arduino Parts for building your own Arduino board.
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There is, in fact, a way to create a NodeMCU ESP8266 WiFi jammer although technically, this is a deauther and not really a jammer. A jammer sends out noise on the WiFi frequency spectrum (2.4 GHz) while the program in this tutorial sends packets that disrupt the normal functions of …
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The NodeMCU is an Arduino-compatible board that features the ESP8266 at its core. It became popular because it is a WiFi-ready microcontroller by itself - no need for an Arduino. This NodeMCU pinout reference aims to show pinouts for NodeMCU v0.9, NodeMCU v1.0, and NodeMCU v3.
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