Programmable thermostats can save a lot of energy and money. But you don't have to buy one- you can convert an old mechanical thermostat into a programmable…
Programmable thermostats can save a lot of energy and money. But you don't have to buy one- you can convert an old mechanical thermostat into a programmable thermostat using an Arduino and a servo.
Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC).…
Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC). In order to understand these fully, concepts such as quantisation, and the Nyquist Criterion must be understood to a certain degree.
Programmable thermostats can save a lot of energy and money. But you don't have to buy one. You can convert an old…
Programmable thermostats can save a lot of energy and money. But you don't have to buy one. You can convert an old mechanical thermostat into a programmable thermostat using an Arduino and a servo.
In the last installment, we built the hardware to control an AC waveform with a TRIAC as the first step in a DIY solder…
In the last installment, we built the hardware to control an AC waveform with a TRIAC as the first step in a DIY solder reflow oven. This tutorial continues the project by showing you how to set up the low-level hardware to measure temperature, read the zero-cross detector, drive the TRIAC, and print to the serial terminal using a USART.
Connecting a PICAXE to the IoT through an ESP8266 module is easy once you know the process. Here are the details you need!
Connecting a PICAXE to the IoT through an ESP8266 module is easy once you know the process. Here are the details you need!
Learn to use an Arduino to read NFC tags and write information on them! Near field communication protocols are what…
Learn to use an Arduino to read NFC tags and write information on them! Near field communication protocols are what electronic devices can use to communicate and transfer data between each other.
Want to send text to an Arduino with an Android smartphone? Here's how! This article will show how an Arduino (or almost…
Want to send text to an Arduino with an Android smartphone? Here's how! This article will show how an Arduino (or almost any other microcontroller) can "talk" with your smartphone, sending and receiving text in both directions.
An inexpensive PICAXE microcontroller makes it easy to read a temperature sensor, compare the temperature to a setpoint,…
An inexpensive PICAXE microcontroller makes it easy to read a temperature sensor, compare the temperature to a setpoint, and turn a heater or cooler circuit on or off.
This article demonstrates how to use the built-in die temperature sensor on the nRF51. The die temperature is not the…
This article demonstrates how to use the built-in die temperature sensor on the nRF51. The die temperature is not the same as ambient temperature, but can be calibrated to ambient temperature by using a correction factor.
Use your Android device to open and close your garage door! Much better than that clunky remote you've been using.
Use your Android device to open and close your garage door! Much better than that clunky remote you've been using.
Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266…
Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.
How to add BLE capabilities to a wireless ceiling fan by incorporating the nRF51 in the remote control. Part of our…
How to add BLE capabilities to a wireless ceiling fan by incorporating the nRF51 in the remote control. Part of our series on the nRF51.
This article demonstrates porting FreeRTOS to the nRF51 with a softdevice so you can use an RTOS with the BLE functionality.
This article demonstrates porting FreeRTOS to the nRF51 with a softdevice so you can use an RTOS with the BLE functionality.
Thread, a network protocol released July 2015, is optimized for the connected home network. It is IPv6 based, uses IEEE…
Thread, a network protocol released July 2015, is optimized for the connected home network. It is IPv6 based, uses IEEE Standard 802.15.4 and runs on existing hardware.
How to create a custom BLE GATT peripheral using the nRF51 by creating a service and characteristics.
How to create a custom BLE GATT peripheral using the nRF51 by creating a service and characteristics.
Learn how to communicate with a custom BLE peripheral using an Android device.
Learn how to communicate with a custom BLE peripheral using an Android device.
MQ Telemetry Transport (MQTT) is a popular low-overhead messaging protocol used by many IoT devices to communicate. This…
MQ Telemetry Transport (MQTT) is a popular low-overhead messaging protocol used by many IoT devices to communicate. This tutorial will show the user how to to set up a basic MQTT network using Python on his or her computer and an ESP8266 running the NodeMCU firmware.
How to set up the build environment for the nRF51 system-on-chip using makefiles and ARM-GCC.
How to set up the build environment for the nRF51 system-on-chip using makefiles and ARM-GCC.
Adding variable speed control and battery monitoring to a Power Wheels truck!
Adding variable speed control and battery monitoring to a Power Wheels truck!
Learn how to set up the Wunderbar platform to begin building your own IoT apps. This will demonstrate the "Can't Touch…
Learn how to set up the Wunderbar platform to begin building your own IoT apps. This will demonstrate the "Can't Touch This" and "Tell Me When" demo applications to measure WunderBar sensors and perform actions based on them. Some of the major bugs are discussed.
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