HC-12 433MHz wireless serial communication module configuration

Description HC-12 are cheap 433MHz wireless serial port communication modules with a range up to 1800m in open space. Each costs about $5 when bought from China, and 2 of them can create wireless UART link that can be used, for example, to transfer telemetry data from UAV. Or drive IoT device. Or connect sensors. Or whatever else one can think of. It is based on SI4463 RF chip, has build in microcontroller, ...

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Maximize the Energy from Long-Life Batteries

Battery lifetime is a key consideration for the development of the wireless sensor nodes that will populate the Industrial Internet of Things (IIoT). In many applications, the sensor nodes will need to be installed in locations that are difficult to reach let alone service. The sensor nodes need to be autonomous in terms of energy because it is too costly and difficult to run power lines to them or to have ...

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Create Mobile Apps for Android and iOS Connecting to the MKR

This simple project shows how to make an app that controls an Arduino MKR1000 board with Evothings Studio by communicating over the TCP. Story MKR1000 is a powerful board that combines the functionality of the Zero and the Wi-Fi Shield. It’s based on the Atmel ATSAMW25 that is part of the SmartConnect family of Atmel Wireless devices, specifically designed for IoT. It offers the ideal solution for makers se ...

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Bling Bra: Wearable, Sexy and Connected IoT Bra

Sexy bra using Arduino MKR1000, Neopixels, and controlled from your smartphone. Story Motivation Many makers sacrifice their social life to play with devices and spend many hours and days making fun things. However, the non-maker do not understand that a robot is something beautiful even if there is a breadboard, components and noise in this tinny thing. Wearable devices are an opportunity towards the recon ...

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AAduino – Arduino Wireless in AA form factor

More news: read all about the new AAduino Zero. News: the crowd sourcing campaign for  the AAduino will start soon, sign up at CrowdSupply to be notified! The specs have been beefed with an STM32L0 cpu and the temperature sensor is now an industrial grade TMP102. Update: you can now order the AAduino PCB from DirtyPCBs.com and get a Commadorable 64 bonus PCB for free. I have been using Nathan Chantrell’s Ti ...

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Aeroscope – a wireless oscilloscope

A pair of former engineers from Agilent (now Keysight) Technologies are working on an oscilloscope that will connect to an iOS device for its user interface. The Aeroscope, conceived by Alexander Lee and Jonathan Ward, looks like the kind of device that you'd use on home projects or in field locations. I recently spoke with Lee about the design. At this time, Lee expects to ship in the fall of 2016. The Aer ...

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Arduino 433Mhz RF Wireless Data Transfer

The most practical and cool way of sharing data from 1 Arduino to another is by far using a radio transmitter and receiver. The simplest form of wireless transmission (I could find) is the 433Mhz ASK modules. They come in pairs, a receiver and a transmitter. They are ridiculously cheap, selling at $1 or less a pair!! These modules provide simplex 1 way data transmission, in order to get a 2 way communicatio ...

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Wireless communication between two Arduinos using inexpensive RF modules

This article explores an easy wireless communication setup between two Arduinos using low-cost ASK RF transmitter and receiver modules that are readily available in the market. They are found in different shapes, but functionally they are all same. Both Tx and Rx modules contain a single data line for input and output and support a low-speed Amplitude Shift Keying modulation for data communication. You can ...

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Create a Private Chat Room using Arduino, nRF24L01 and Processing

Creating a Local Network to share personnel and confidential data's has become almost impossible for a common man in our modern world. This is mainly because all common chat methods like Whatsapp, Facebook, Hangout and almost everything involves an internet connection. What if, we could share data without the medium of Internet? How cool it would be if you could communicate with people inside your home or w ...

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nRF24L01+ 2.4 GHz wireless connectivity with the TinyK20 board

I’m using the tiny and inexpensive Nordic Semiconductor nRF24L01+ transceiver (see “Tutorial: Nordic Semiconductor nRF24L01+ with the Freescale FRDM-K64F Board“) in many projects: it costs less than $3 and allows me to communicate with a proprietary 2.4GHz protocol in a low power way (see “IoT: FreeRTOS Down to the Micro Amps“). I have that transceiver now running with the tinyK20 board too: The normal 2×3 ...

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Teardown: Amazon Dash Button keeps you connected

Amazon's Dash Button, which I previously mentioned back in late May 2015, is the ultimate in consumer convenience (or, if you prefer, consumerism gone crazy). Simply press a button on the inconspicuous adhesive-backed device (perfect for attaching to your washer and dryer, refrigerator, counter, or cabinet), and your Amazon account is charged for the purchase while the corresponding product gets automatical ...

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ESP8266 – Wireless Weather Station with Data Logging to Excel

In this project we are going to establish a wireless communication between two ESPs and send data from three sensors to an Excel spreadsheet. This tutorial shows a wireless weather station with data logging that you can implement in your home. Before you continue reading this project, please complete the following tutorials:  How to get started with the ESP8266 How to make two ESP8266 talk How to flash your ...

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