For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and a 1.8-inch color LCD display.
For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and a 1.8-inch color LCD display.
This four-part series walks through the development of the Anthilla Controller, an open-source Internet of Things (IoT)…
This four-part series walks through the development of the Anthilla Controller, an open-source Internet of Things (IoT) hardware platform. In Part 3, we cover the manufacturing, assembly, and product testing of the board.
In this article we’ll discuss the design for a custom microcontroller programming/debug/extension PCB and we’ll look…
In this article we’ll discuss the design for a custom microcontroller programming/debug/extension PCB and we’ll look at an example project.
The MSP430FR2633 is a low-power microcontroller with multiple GPIOs and capacitive touch pins. This project creates a…
The MSP430FR2633 is a low-power microcontroller with multiple GPIOs and capacitive touch pins. This project creates a circuit that supports a custom capacitive touch panel with LED and haptic feedback.
This is a protoype of a fitness wearable device designed to vibrate when it detects stagnation.
This is a protoype of a fitness wearable device designed to vibrate when it detects stagnation.
The best way to solder surface mount devices (SMDs) onto printed circuit boards (PCBs) is with a reflow oven, but when…
The best way to solder surface mount devices (SMDs) onto printed circuit boards (PCBs) is with a reflow oven, but when that's not possible, a hot-air station can be successfully used.
Learn about SKD v2.0.0 and how flashing your ESP-01's firmware just got easier.
Learn about SKD v2.0.0 and how flashing your ESP-01's firmware just got easier.
No more waiting around for the groundhog. The Punxsutawney 5000 is here to keep you inside until springtime arrives!
No more waiting around for the groundhog. The Punxsutawney 5000 is here to keep you inside until springtime arrives!
LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own…
LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own ring light out of LEDs!
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver…
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver IC, three phototransistors, and a few other components will do the trick.
A PICAXE 08M2 can be used to read the amount of IR (infrared) light falling on a phototransistor and respond by moving a…
A PICAXE 08M2 can be used to read the amount of IR (infrared) light falling on a phototransistor and respond by moving a servo to a predetermined position.
We’ll discuss some important layout and manufacturing concepts as we look at the PCB for the Robot Control Board.
We’ll discuss some important layout and manufacturing concepts as we look at the PCB for the Robot Control Board.
We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t…
We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t covered in the previous article.
Use an Arduino/Genuino 101 with iAQ-Core air quality and HIH-6131 temperature/humidity sensors to make an Indoor Air…
Use an Arduino/Genuino 101 with iAQ-Core air quality and HIH-6131 temperature/humidity sensors to make an Indoor Air Quality Monitor with Bluetooth low energy (BLE) connectivity.
A tipping bucket rain gauge is a clever way to measure rainfall. Learn how to add wireless capability, a PICAXE…
A tipping bucket rain gauge is a clever way to measure rainfall. Learn how to add wireless capability, a PICAXE microcontroller, and an LCD display to your weather station.
A tipping bucket rain gauge, an RF transmitter and receiver, a PICAXE microcontroller, and an LCD can make a great…
A tipping bucket rain gauge, an RF transmitter and receiver, a PICAXE microcontroller, and an LCD can make a great addition to your weather station.
In spite of their convenience, the cost of solder paste stencils has prevented many hobbyists from using them. But the…
In spite of their convenience, the cost of solder paste stencils has prevented many hobbyists from using them. But the use of polyimide film has brought the prices within reach... if you know how and where to get them.
Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a…
Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a previous article using a hot air rework station and other various electronics tools.
Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.
Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.
The PICAXE 40X2 features 32 I/O ports and speeds up to 64MHz; a development platform simplifies project design using this…
The PICAXE 40X2 features 32 I/O ports and speeds up to 64MHz; a development platform simplifies project design using this workhorse.
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