My wife and I recently moved to a new apartment with our cat, Nymeria. This new apartment came with an extra houseguest – a small bird just outside our door. This bird happily chirps all day, which torments our cat who can’t find the source of the chirping. I decided to make a chirping toy […]
This instructables show how to start playing with TTGO T-Watch. Step 1: What Is TTGO T-Watch? TTGO T-Watch is watch shape ESP32 based development kit. 16 MB flash and 8 MB PSRAM both are top specification. It also built-in a 240×240 IPS LCD, touch screen, micro-SD card port, I2C port, RTC, 3-axis accelerometer and a
Here’s how to build a simple robotic arm with a gripper using popsicle sticks, an Arduino, and a few servos. Supplies: Feel free to use similar materials or whatever you already have. (e.g. cardboard instead of popsicle sticks) Materials: 14 Popsicle Sticks 4 Micro Servos (with their horns and screws) 4 Rotary Potentiometers 1 Half
This Instructables show how to make a Arduino Watch from Arduino Watch Core. Step 1: Preparation Arduino Dev Board This time I am using Sparkfun Pro Micro 3.3 V 8 MHz dev board. Watch Display This time I am using a ST7789 1.3″ IPS LCD. Lipo Battery I have some 301420 Lipo battery in hand. Lipo
Hi guys, in one of our previous tutorials, we built a real-time clock with temperature monitor using the DS3231 and the 16×2 LCD display shield. Today, we will build an upgrade to that project by replacing the 16×2 LCD display with an ST7735 based 1.8″ colored TFT display. Apart from changing the display, we will
Arduino Real Time Clock with Temperature Monitor Continue Reading
This Instructable started as my great interest in the TV show Toast of London. The British Matt Berry comedy that can now be found on Netflix has some superb voice overs that I wanted to accommodate in my morning toaster routine. In a running joke, he was required to make recordings for the British Navy for their
Ever wanted to know how much solar power you could yield by putting PV cells in a specific place on or around your house? This Instructable shows you how to build a data logger based on an Arduino (or Genuino) Uno with data-logger-shield and a PV cell recording the electric power yielded during a sunny
Modern battery operated portable devices use smart battery packs. Every new development of an electronic medical device must follow strict design flow defined by world-wide or local regulatory directives. The development process of any such device using smart battery pack requires specific operating conditions to meet the testing criteria. When smart battery pack is one
Low cost single cell L-Ion battery pack simulator Continue Reading
In this post I’m going to show you how you can monitor the power consumption of your battery driven (ESP8266/ ESP32) device. Measuring the power consumption over a full activity/ sleep cycle is the precondition to optimize your code for a longer battery runtime. Only with a reliable tool you can decide which code changes
– The first wearable technology for blinds – Using ultrasonic waves to detect the obstacles – Notifying the user through vibrations/buzzer sound Third eye for blinds is an innovation which helps the blinds people to navigate with speed and confidence by detecting the nearby obstacles using the help of ultrasonic waves and notify them with
THIRD EYE FOR THE BLIND – an Innovative Wearable Technology for Blinds. Continue Reading
