ATtiny85 Ring Watch
https://www.electronics-lab.com/attiny85-ring-watch/
This is a great ATtiny85 watch that uses a SSD1306 OLED display and is powered by a CR1220 battery. Today core subject, ATtiny85. Someone suggest me to use SOIC version to reduce the watch size and I found the coin cell mAh calculation method will count the battery voltage down to 2.0 V, so this […]
USB to Serial Adapter using FTDI FT231X
https://www.electronics-lab.com/usb-to-serial-adapter-using-ftdi-ft231x/
Sergey @ malinov.com has build another FTDI FT231X based USB to Serial adapter and provides the design files to the public domain. This adapter allows connecting micro-controller boards that have 5V or 3.3V serial interfaces to a PC USB port. The converter is compatible with FTDI USB TTL Serial cables and SparkFun FTDI Basic breakout board. […]
Valentine’s Heart with PIC12F629
https://www.electronics-lab.com/valentines-heart-with-pic12f629/
A few days before Valentine here is a great little project from Mike @ malinov.com. It’s a LED heart based on PIC12F629 that is powered using a CR2032 battery. Design files and source code are provided. Valentine’s Heart with PIC12F629 – [Link]
Smart Battery Charger
https://www.electronics-lab.com/smart-battery-charger/
gfwilliams @ instructables.com has build a smart battery charger that is able to individually charge each battery , automatically discharge them and give you an idea of their capacity. The charger is controlled by an Espruino Pico and results are displayed on a Nokia 5110 LCD display. If you’re anything like me you’ll end up […]
Staff with Click Sound and Obstacle Alarm
https://www.electronics-lab.com/staff-with-click-sound-and-obstacle-alarm/
People who are visually impaired usually use a staff to guide them as they walk. They tap with their staff to know if an obstacle is present around. Others use the echolocation technique. They produce a clicking sound through their tongue, foot, and fingers and through this they detect objects from their surrounding by sensing […]
AC Solid state Relay for Inductive Load
https://www.electronics-lab.com/ac-solid-state-relay-for-inductive-load/
AC Solid state Relay for Inductive Load offers simple On/Off type Switch Control with TTL compatible input signal. Input signal : 2 ~ 5 VDC, TTL compatible Output : up to 500 W Mains supply input 230 VAC or 110 VAC Optically isolated Triac based design Power Battery Terminal (PBT) and Terminal pins for […]
AC Solid state Relay for Inductive Load
https://www.electronics-lab.com/project/ac-solid-state-relay-for-inductive-load/
AC Solid state Relay for Inductive Load offers simple On/Off type Switch Control with TTL compatible input signal. Input signal : 2 ~ 5 VDC, TTL compatible Output : up to 500 W Mains supply input 230 VAC or 110 VAC Optically isolated Triac based design Power Battery Terminal (PBT) and Terminal pins for easy […]
Atmega32u4 Breakout Board Tutorial
https://www.electronics-lab.com/atmega32u4-breakout-board-tutorial/
adafruit.com has published a new tutorial for their Atmega32u4 breakout board. It discuss on how to use it with AVRdude and how to setup and use it with Arduino IDE. We like the AVR 8-bit family and were excited to see Atmel upgrade the series with a USB core. Having USB built in allows the […]
Quick Arduino Hygrometer with OLED display
https://www.electronics-lab.com/quick-arduino-hygrometer-with-oled-display/
jazzycamel @ instructables.com has published an Arduino based Hydrometer with OLED display. It uses an Arduino Leonardo Pro Micro, an Adafruit SSD1306 OLED display and DHT11 digital temperature and humidity sensor. We have been having some condensation and mould issues in our apartment recently due to, I think, the humidity levels. Our property is relatively newly built […]
Starling – WiFi enabled LED Display
https://www.electronics-lab.com/starling-wifi-enabled-led-display/
Starling is a modular, Open Source LED display with WiFi connectivity. It comes with a mobile app for easy configuration and usage and has hardware support for Bluetooth. The LED matrix is driven by an Atmega8 microcontroller (MCU), instead of a standard ASIC. This provides a lot of flexibility in the firmware. The firmware detects […]