You can buy cheap 433MHz RF modules from Mouser and DigiKey. This article will show you how to use them with a PICAXE microcontroller to hack your own mousetraps.
You can buy cheap 433MHz RF modules from Mouser and DigiKey. This article will show you how to use them with a PICAXE microcontroller to hack your own mousetraps.
Control a fan based on the current temperature with a Raspberry Pi!
Control a fan based on the current temperature with a Raspberry Pi!
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.
This article will show you one way of making an accurate clock by using the Real Time Clock IC DS1307. The time will be…
This article will show you one way of making an accurate clock by using the Real Time Clock IC DS1307. The time will be shown on a LCD display.
LCDs are great for showing info from your microcontroller. A serial adapter is inexpensive, uses only one I/O, and is…
LCDs are great for showing info from your microcontroller. A serial adapter is inexpensive, uses only one I/O, and is easy to connect and to use.
Part 4 introduces the readadc, select, case, and endselect PICAXE BASIC commands. It is the fourth article in a…
Part 4 introduces the readadc, select, case, and endselect PICAXE BASIC commands. It is the fourth article in a multi-part series on writing PICAXE code.
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.
Part 1 in the “How to Make an EFM8-Based Sound Synthesizer” series, which will design a sound synthesizer that can…
Part 1 in the “How to Make an EFM8-Based Sound Synthesizer” series, which will design a sound synthesizer that can play standard musical notes. We will accomplish this using a low-cost, small-form-factor EFM8 microcontroller in conjunction with a few external components and a speaker.
In this article I will discuss what switch bounce is and some ways to deal with it. First I will take you through the…
In this article I will discuss what switch bounce is and some ways to deal with it. First I will take you through the theory, and later I will show you some ways to handle it in both hardware and in software.
Part 5 in the “How to Make an Ambient Light Monitor” series.
Part 5 in the “How to Make an Ambient Light Monitor” series.
Getting started with PSoC®, the Programmable-System-on-Chip by Cypress Semiconductor for developing and testing embedded systems.
Getting started with PSoC®, the Programmable-System-on-Chip by Cypress Semiconductor for developing and testing embedded systems.
Beaglebone Black is the most recent incarnation of the Beaglebone open source hardware platform. For less than $50, the…
Beaglebone Black is the most recent incarnation of the Beaglebone open source hardware platform. For less than $50, the board includes Ethernet, graphics processing, 4Gb of nonvolatile storage, and ports supporting USB, HDMI, and Beaglebone's custom I/O add-ons, called "capes". Here's how to run some simple commands to toggle digital I/O on the board!
This is one simple way to control a LED, fan, relay or solenoid with a computer and a PIC.
This is one simple way to control a LED, fan, relay or solenoid with a computer and a PIC.
How to read humidity and temperature from a DHT11 and display it on a LCD with a PIC microcontroller. In this example…
How to read humidity and temperature from a DHT11 and display it on a LCD with a PIC microcontroller. In this example we're going to use a PIC16F628A.
Part 2 in the "How to Make an Ambient Light Monitor" Series. Our smart ambient light monitor will need to digitize and…
Part 2 in the "How to Make an Ambient Light Monitor" Series. Our smart ambient light monitor will need to digitize and analyze signals from an optical detector, so it is time to explore the EFM8’s integrated analog-to-digital conversion functionality.
This introduction to the PICAXE microcontroller overviews the economical, versatile, and fun-to-use MCU family with which…
This introduction to the PICAXE microcontroller overviews the economical, versatile, and fun-to-use MCU family with which all designers should become familiar.
Learn how to use an EFM8 microcontroller to convert current and voltage measurements to digits that can be displayed on…
Learn how to use an EFM8 microcontroller to convert current and voltage measurements to digits that can be displayed on an LCD. We'll discuss a convenient way to report analog-to-digital conversion values that represent current and voltage amplitudes.
Use the EFM8’s USB functionality to transfer an image from your PC to an LCD.
Use the EFM8’s USB functionality to transfer an image from your PC to an LCD.
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