Category: Mcu

This is an OLED temperature display based on ATmega328p along with a NeoPixel led ring to display different colors depending on temperature. This is a small temperature display using a OLED with a NeoPixel Ring around it using MQTT on a ESP8266 and sending data to the on board...

webboggles.com has designed a SSD1306 OLED Screen based game kit using an ATtiny85 microcontroller. They also sell it as a kit to assemble it yourself. The new snap case has been updated to allow enough height for the screen header as well as a factory made CR2032 battery...

educ8s.tv wanted to take a look at this tiny board for a long time. It is very small size, it is low cost and it uses a different processor than the Arduino boards. It uses the ATTiny 85 microcontroller chip, which can operate at a frequency up to 20Mhz. It has 8Kb of flash memory,...

In this tutorial you will learn how to use ESP8266 in standalone mode to control a relay via Web-UI. The ESP broadcasts its own SSID and there is no need to connect to a router. ESP8266 Standalone WiFI Relay Control -...

Peter Isza has designed and produced an amazing electrocardiograph business card and open sourced the design files. MobilECG II is an open source clinical grade Holter ECG. For more information, please visit http://mobilecg.hu An Electrocardiograph business card -...

John Keefe has designed an open source data logger that is able to monitor conductivity, temperature and turbidity of water in lakes and fits inside a plastic bottle. The board is designed to monitor the conductivity (and, possibly, contamination) of water in lakes and streams, with...

Dilshan Jayakody build a auto monitor brightness controller that adjusts your monitor brightness according to lighting conditions. He writes: The sensor unit of this system is build around PIC18F2550 8-bit microcontroller. To measure the light level we use LDR with MCU's inbuilt ADC....

Maurizio show us how to generate an analog voltage using a microcontroller and some resistors. The purpose of this article is how to generate analog voltage with digital circuit. Although the market provides today a very broad range of dedicated digital-to-analogue converters,...