Minimal I2C for the New AVR Microcontrollers
https://www.electronics-lab.com/minimal-i2c-new-avr-microcontrollers/
This article describes a set of minimal I2C routines for the new 0-series and 1-series ATtiny and ATmega microcontrollers. They allow any of these processors to act as an I2C Master and connect to I2C peripherals. As an example of their use I’ve designed a digital clock circuit based on a 0-series ATtiny402 connected to […]
Room Weather Station Using Arduino and BME280
https://www.electronics-lab.com/room-weather-station-using-arduino-bme280/
We have built quite a number of weather stations in several past tutorials, with each one differing from the other by the use of a different sensor, different display, etc. Today, we are going to build another weather monitoring station using the BME280 Temp and humidity sensor from Adafruit and an OLED display. The BME280 […]
Programmable USB Hub has I2C, GPIO and SPI
https://www.electronics-lab.com/programmable-usb-hub-i2c-gpio-spi/
A USB hub that’s also a dev board and an I2C, GPIO, and SPI bridge In addition to being a 4-port USB 2 High-Speed hub, this Programmable USB hub is also: A CircuitPython based development board. A bridge between your computer and I2C (via Sparkfun Qwiic connectors), GPIO, and SPI (via its mikroBUS header). A […]
0.42″ 72×40 Extra Small White Graphic OLED Display Module
https://www.electronics-lab.com/0-42-72x40-extra-small-white-graphic-oled-display-module/
DM-OLED042-647 is a 0.42″ 72×40 Extra Small White Graphic OLED Display Module with SPI,I2C interface. Main features 0.42″ 72 X 40 Pixel CPU Interface: I2C Drive IC: SSD1306 Display Colors ：White Graphic OLED The OLED display is available from www.displaymodule.com for $6.95.
0.86″ 96×32 White Graphic OLED Display Module
https://www.electronics-lab.com/0-86-96x32-white-graphic-oled-display-module-spimcui2c/
This is a 0.86″ 96×32 White Graphic OLED Display Module supporting SPI,MCU,I2C Main features 0.86″ 96 X 32 Pixel CPU Interface: 8-bit 6800/8080 Parallel, 4-wire SPI, 3-wire SPI, I2C (default) Drive IC: SSD1316 Display Colors ：White Graphic OLED The OLED module is available from www.displaymodule.com for $7.95
Using a 16×2 I2C LCD display with ESP32
https://www.electronics-lab.com/using-16x2-i2c-lcd-display-esp32/
A few weeks ago, we examined the features of ESP32 module and built a simple hello world program to get ourselves familiar with the board. Today, we will continue our exploration of the ESP32 on a higher level as we will look at how to interface a 16×2 LCD with it. Displays provide a fantastic […]
Programmable USB Hub will soon launch on Crowdsupply
https://www.electronics-lab.com/programmable-usb-hub-will-soon-launch-crowdsupply/
A USB hub that’s also a dev board and an I2C, GPIO, and SPI bridge. In addition to being a 4-port USB 2 High-Speed hub, this Programmable USB hub is also: A CircuitPython based development board. A bridge between your computer and I2C (via Sparkfun Qwiic connectors), GPIO, and SPI (via its mikroBUS header). A […]
Vishay VCNL4030X01 AECQ proximity sensor with four I2C address options
https://www.electronics-lab.com/vishay-vcnl4030x01-aecq-proximity-sensor-four-i2c-address-options/
VCNL4030X01 incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single chip by CMOS process. VCNL4030X01 integrates a PS, ALS and a high power IRED into one small package. It incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single chip by CMOS process. The 16-bit high resolution ALS for excellent […]
RGB UV IR light sensor is under 1x2mm
https://www.electronics-lab.com/rgb-uv-ir-light-sensor-1x2mm/
STMicroelectronics, a global semiconductor leader serving customers across the spectrum of electronics applications, has released an innovative full-color ambient light sensor (ALS) that helps smartphones take better pictures and present more visually accurate data on screen displays. By simultaneously providing scene color temperature, ultra-violet (UVA) radiation level, and lighting frequency information, the VD6281 lets the […]
Serial Star, a 4 in 1 USB Serial and I2C Converter
https://www.electronics-lab.com/serial-star-4-1-usb-serial-i2c-converter/
Jesus Echavarria @ jechavarria.com has build a 4 in 1 USB Serial converter based on MCP2221A. This board is mainly a USB hub with 4 USB to serial converters. Is like the typical USB to TTL adapter but with one USB port you get up to 4 serial ports. Levels of every converter are selectable […]