USB to UART Converter with GPIO – MCP220
https://www.electronics-lab.com/usb-uart-converter-gpio-mcp220/
The Module is based on The MCP2200, which is a USB-to-UART serial converter which enables USB connectivity in application that have a UART interface. The device reduces external components by integrating the USB termination resistors. The MCP2200 also has 256-bytes of integrated user EEPROM. The MCP2200 has eight general purpose input / output pins. Four […]
USB curve tracer for NPN transistors
https://www.electronics-lab.com/usb-curve-tracer-npn-transistors/
Dilshan Jayakody documented his USB port base NPN transistor curve tracer project: Curve tracer is an electronic test instrument to analyze the characteristics of transistors and other discrete semiconductors. In this post we construct USB base curve tracer to analyze properties of NPN transistors. This curve tracer is build around Microchip’s PIC18F4550 MCU and it […]
USB Power Meter
https://www.electronics-lab.com/usb-power-meter/
Daniel Grießhaber @ hackaday.io has published his build of a USB power meter. His device is based on ATTiny 85 mcu and 0.96″ OLED Display and is able to measure voltage, current and power output from USB port. Since USB has become more and more a power delivery standard, it would be nice to have a convenient way to […]
SolarBoost – Make Your Own USB Solar Mobile Charger
https://www.electronics-lab.com/solarboost-make-your-own-usb-solar-mobile-charger/
SolarBoost is an open source smart interface that allows you to build your own powerful and portable solar charger for your phone and other mobile devices. It has two USB ports and can provide 5V @ 2A at each of them and is controlled by a 8-bit 32MHz Microchip PIC microcontroller. It is also equipped […]
DIL-Duino – Arduino in a DIL shape
https://www.electronics-lab.com/dil-duino-arduino-in-a-dil-shape/
DIL-Duino is a complete Arduino environment in a DIL-8 form factor based on the DigiSpark Hardware. by Daniel Grießhaber: DIL-Duino uses the QFN Version of the ATTiny85 and a USB Bootloader to provide the easy to use Arduino stack in a single DIL-8 Package Footprint. To fit the Micro-USB socket on the board, it was […]
Smartphone Solar charger card
https://www.electronics-lab.com/smartphone-solar-charger-card/
Here is a nice idea of a business card solar smartphone charger with USB plug. The charger is 3mm thick and can provide 50mA @ 5V Smartphone Solar charger card – [Link]
Multi-Function SSD Shield for the Raspberry Pi 2
https://www.electronics-lab.com/multi-function-ssd-shield-for-the-raspberry-pi-2/
We came across this kickstarter campaign that features a multifunction SSD shield for Raspberry Pi 2. The shield includes SSD, WiFi, RTC w/Battery and high power USB: Pi 2 Design is excited to introduce the first offering in a new line of Embedded and Media-based I/O shields for the popular Raspberry Pi 2. The CSB502SSD Multi-Function […]
USB Cable Tester
https://www.electronics-lab.com/usb-cable-tester/
davedarko wanted an easy way to check a USB cable, so he created this project: A little ATtiny45, some LEDs and transistors – battery powered. It scans through the cable with some blinking LEDs, then goes to sleep. USB Cable Tester – [Link]
Dual USB Serial and I2C Converter
https://www.electronics-lab.com/dual-usb-serial-and-i2c-converter/
Jesus Echavarria has posted a new project, a dual USB – Serial and I2C converter to communicate with serial and I2C devices. Hi all! After a couple of months with a lot of work, I come here again with the last board I develop before Christmas. It’s a dual USB serial and I2C converter based […]
Programmable CW Morse beacon
https://www.electronics-lab.com/programmable-cw-morse-keyer/
Marko Pavlin has designed a Mini USB dongle with STM32F0xx that is connected to USB and controlled via command line interface. Mini USB dongle with STM32F0xx is suitable many for simple, mini projects. I attached speaker to Timer14 PWM output (Pin PA6) and LED (or optocoupler connected to PTT) to GPIO pin PA0 The provided […]