The battle of the world smallest computer is something the researchers at the University of Michigan don’t attempt to give up anytime soon with the introduction of the Michigan Micro Mote, a computer smaller than a grain of rice. The Michigan Micro Mote has helped researchers at the University of Michigan remain top in the […]
Michigan Micro Mote – The World’s Smallest Computer Read More »
Simple LED matrix Clock based on the popular ESP8266 with Real Time Clock module and time synchronization over WiFi from an NTP server. Step 1: Parts and Tools First let’s see what we need. Parts: 6 x 8×8 MAX7219 LED Matrix 1 x RTC DS3231 1 x ESP12 Board 1 x pasta jar 1 x
ESP8266 LED Matrix Clock Read More »
Espressif systems has been working on different audio applications including smart speakers. Despite the fact that they have been developing their audio applications, as of February 2018, none of ESP32 software development kits was easily accessible and the hardware kits were not able to take on any new tasks. So, there were no chances to
ESP32-LyraT – An Open Source Development Board For Smart Audio Applications Read More »
The last interfacing of the PIC16F887 microcontroller and DS3231 RTC is the building of a simple real time clock and calendar with two buttons for setting time and date. Project link is the one below: Interfacing DS3231 with PIC16F887 microcontroller In this topic I’m going to add 2 alarms and temperature monitor to the previous
Real time clock and temperature monitor using PIC16F887 and DS3231 Read More »
This one is a very simple but cool project, something that I would recommend to anyone who is interested into DIY electronics, gadgets and learning new stuff in general. It is definitely one of those projects that don’t require too much time but you can learn a lot by making it and also earn a
LED HEART KEYCHAIN Read More »
DESCRIPTION A smart, programable Fidget Spinner with the following features: * JavaScript programmable * 10-Pixel RGB PoV display (using APA102 LEDs) * Spin count / speed detection using a magnetic latch * Using Nordic Semiconductor nRF52832 chip * Bluetooth Low Energy (BLE) communication with smart phone / computer for controlling the display, reading the spin
SPINDUINO – IOT FIDGET SPINNER Read More »
There are many topics in this blog talking about the 7-segment display and how to interface it with different types of PIC microcontrollers. One of these topics shows how to interface PIC16F877A with a multiplexed 4-digit 7-segment display with the shift register 74HC164N. There are many topics in this blog talking about the 7-segment display
4-Digit 7-Segment display with 74HC595 shift register Read More »
Around one and a half years ago I’ve designed and built various LED dimmers for both white and RGB LEDs. Then late last year someone approached me asking if I could make an RGB dimmer for him, too. But my designs were really tailored to their specific applications and built with home-made, i.e. milled PCBs which are time-consuming to
PROGRAMMABLE LED DIMMER Read More »
Description The ISL9307 is an integrated mini Power Management IC (mini-PMIC) ideal for applications for powering low-voltage microprocessor or multiple voltage rails with a battery as an input source, such as a single Li-ion or Li-polymer. ISL9307 integrates two high-efficiency, 3MHz, synchronous step-down converters (DCD1 and DCD2) and two low-input, low-dropout linear regulators (LDO1 and
Intersil claims to have smallest pico-projector Read More »
Introduction This article describes simple constant current driver module with fast PWM input that can be used for driving medium and high power LEDs. The module uses an integrated constant-current output, DC-DC buck converter with output current configurable from 0.1 to 0.5A. This article outlines the schematic, design guidelines, operation, and performance of the low
A low-cost 0.5A 33V LED driver module with 90+% efficiency Read More »
