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 […]
OpenSource Arduino OLED Clock with temperature measurement
https://www.electronics-lab.com/opensource-arduino-oled-clock-with-temperature-measurement/
Konstantin Dimitrov has published his Arduino OLED clock which uses DS1307 real time clock module and TMP102 temperature sensor that communicate through I2C. This clock will not only show you exact time and date but also it will show you the ambient temperature in both Fahrenheit and Celsius, with accuracy of 0.5°C (-25°C to +85°C) and […]
Wi-Fi and OLED Upgrade for MightyOhm Geiger Counter
https://www.electronics-lab.com/wi-fi-and-oled-upgrade-for-mightyohm-geiger-counter/
Dan Watson @ syncchannel.blogspot.com wanted to have more fun with his MightyOhm Geiger Counter so decided to add an OLED display and Wifi capability to it. To achieve that he modified the counter, added a Feather HUZZAH ESP8266 with OLED FeatherWing and wrote some code. The process is documented on his blog: I assembled my Geiger […]
Home Built Bench Power Supply using ATMEGA328P
https://www.electronics-lab.com/home-built-bench-power-supply-using-atmega328p/
ianjohnston.com has designed a nice power supply based on ATMEGA328P and Arduino bootloader. The output is dual channel 0-24vdc @ 3A each, with preset constant current and independant voltage/current control. This isn’t a full design blog but I’ve tried to document/add stuff as I go along, the idea being I’ll put all design documentation (schematic, […]
LTC4123 – Low Power Wireless Charger
https://www.electronics-lab.com/ltc4123-low-power-wireless-charger/
Linear Technology Corporation introduces the LTC4123 to further expand its offerings in wireless battery charging. The LTC4123 combines a 30mW wireless receiver with a constant-current/constant-voltage linear charger for NiMH batteries, such as Varta’s power one ACCU plus series. An external resonant LC tank connected to the LTC4123 enables the IC to receive power wirelessly from […]
Serial Port Communication in C#
https://www.electronics-lab.com/serial-port-communication-in-c/
Maurizio tipped us with his latest article on how to use Serial Port in C#. The article does cover the basic code needed to achieve serial communication. The serial port of the PC is a very important resource both in industrial environment and in home-made electronics, due to the wide popularity of the UART interface […]
12V @ 120mA Transformerless Power Supply
https://www.electronics-lab.com/project/12v-120ma-transformerless-power-supply/
The circuit provided here is a transformer-less non-isolated power supply which is capable of delivering an output of 12V at 120mA current for an input voltage varying from 85VAC-265VAC. The LNK304 is the heart of this circuit which supports buck boost and flyback topologies. This project is low in cost and simple when compared other […]