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Another Raspberry Pi camera
Check out this Raspberry Pi powered compact camera that uses PiJuice, an all in one battery module, to power the device. Raspberry Pi powered compact camera I’m so excited about this new project! A...
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DIY GPS navigation using Arduino
This DIY GPS navigation system is built under $25 and uses Arduino with a GPS module and a 320*240 TFT to display the topographical maps stored as BMP files on an SD card. Based on the combination of...
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Yet another GPS tracker
Here is another GPS tracker using Arduino that is aimed to assist people suffering from Alzheimer and Dementia by notifying their caretakers about their location. It consists of a GPS module, GSM...
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MSP430 powered IR remote control for room automation
Rohit Gupta writes about his MSP430 powered IR remote control that he uses for room automation to control a mosquito repeller and a RGB mood light in his room using a Sony TV remote. MSP430 based IR...
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Wireless reset button for your router
Does your router go wonky once every few days and require manual resetting? I know my old router did that quite a bit. Taylor Burley writes about his wireless reset button that will allow you to reset...
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DC millivolt source
Dilshan’s new project is a DIY millivolt source for simulating precise low-amplitude DC voltages. DC millivolt sources are often used for thermocouple simulations, DMM, ADC and analog circuit...
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Arduino powered liquid/powder dispenser system
An accurate dispenser system for liquids and powder using Arduino. Arduino dispenser system First things first, let’s put together the interface. It will make some of the calibration steps later a...
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DIY Soldering Robot
The DIY Soldering Robot was an ongoing project of Brian Dorey for a while and now he has just been able to finish it and test it with some real-world soldering. DIY soldering robot The DIY soldering...
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Arduino measures heart beat rate from fingertip
The PIC16F628A based heart rate meter is one of the most popular projects published on Embedded Lab. In this article, I am going to show how to replicate the same project using a simpler platform like...
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Low cost game console using PIC32
Alexander Shabarshin’s XORYA is a low-cost game console using PIC32MX170F256B microcontroller. XORYA extremely low cost game console that consists of just 1 chip (in its base configuration) – DIP28...
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An open source chocometer to measure blood glucose level using IR light
marcelclaro’s entry to HAD Prize 2015 is an open source Chocometer that can measure the glucose level in blood by shining an infrared light source. Diabetes mellitus is a global problem, in 2013, 382...
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ATtiny85 based mini weather station
This Instructable describes a mini weather station using ATtiny85 and DHT11 sensor. It consists of TX and RX units with a 433MHz RF link to connect them. The TX unit sends temperature and humidity...
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Hacking a bathroom weighscale for cloud connectivity
Hardware hacker Darrel Tan has a great write-up about his experience with hacking a Chinese-made bathroom scale for cloud connectivity using a Raspberry Pi. His bathroom weighscale has a separate...
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555 Timer as power usage sensor
Electricity meters usually have blinking LED lights whose flashing rate is associated with the amount of energy usage. This example shows how to use a 555 timer chip acting as Schmitt trigger combined...
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MAX7219 LED display driver for ESP8266
Here is an Instructable on writing a MAX7219 driver for interfacing an 8-digit seven segment LED to ESP8266 platform. ESP8266 drives MAX7219 based seven segment display The MAX7219 are compact, serial...
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IoT enabled lawn mower
Michel from Quebec, Canada recently bought a EGO brand battery powered lawn mower to which he added an ESP8266 module along with a PIC MCU and a couple of hall sensors to make it an IoT-enabled mowing...
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USB temperature logger using minimal components
This PIC16F1455-based USB temperature logger is one of the simplest designs I have ever seen and uses only 2-components, the PIC microcontroller itself and an USB connector. It uses PIC’s internal...
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How to use HC-SR04 ultrasonic ranging module
Samuel Alexander, a 10th grader from Surabaya, Indonesia, has posted an Instructable on how to use the HC-SR04 ultrasonic module with Arduino for simple distance ranging applications. HC-SR04 is a...
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Automation of an old-school knob-turny style AC unit
If you have an old-school knob-turny style window AC unit that is still in working condition, you might want to read this article from Phil Rowe who talks about how he reinvigorated his old AC unit to...
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Open source, modular bench power supply
Here’s a neat bench power supply design from a Hackaday user which offers very interesting features such as software calibration, programmatic control via USB Raw HID, etc at an affordable price. While...
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